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THE MERCK MANUAL MEDICAL LIBRARY: The Merck Manual of Medical Information--Home Edition
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Co

Coal workers pneumoconiosis

Who Is at Risk of Environmental Lung Diseases?Sidebar
Coal Workers' Pneumoconiosis

Coarctation of aorta

Heart Defects: Coarctation of the Aorta

Cobalamin (vitamin B12)

VitaminsTables
Vitamin B12

  • deficiency of

  • Vitamin B12: Vitamin B12 Deficiency
    Vitamin Deficiency Anemia

  • supplementation with

  • Vitamin Deficiency Anemia: Treatment

    Cocaine

    Cocaine

  • adolescent use of

  • Drug and Substance Use and Abuse: Other Substances

  • during pregnancy

  • Risk Factors That Develop During Pregnancy: Drugs

    Coccal infection

    see also specific infections
    How Bacteria Shape UpFigures
    Pneumococcal Infections
    Staphylococcus aureus Infections

    Coccidioidomycosis

    Community-Acquired Pneumonia: Fungi
    Coccidioidomycosis

    Coccydynia

    Levator Syndrome

    Cochlea

    A Look Inside the EarFigures
    Ears: Inner Ear

    Cochlear implant

    Hearing Loss and Deafness: Cochlear Implants
    Cochlear Implant: Aid for the Severely to Profoundly DeafFigures
    Hearing Impairment: Treatment

    Codeine

    Opioid AnalgesicsTables

  • abuse of

  • Opioids

  • in cough remedies

  • Symptoms: Antitussive Therapy
    Nonprescription Cold RemediesTables

  • in diarrhea

  • Drugs Used to Treat DiarrheaTables

    Coenurosis

    Parasitic Infections: Other Infections

    Coenzyme Q10

    Coenzyme Q10

    Coffee worker's lung

    What Causes Hypersensitivity Pneumonitis? Tables

    Cognitive-behavior therapy

    Treatment of Mental Illness: Psychotherapy

  • in anxiety

  • Generalized Anxiety Disorder: Treatment

  • in bulimia

  • Bulimia Nervosa: Treatment

    Cognitive impairment

  • in Alzheimer's disease

  • Dementia: Symptoms

  • in delirium

  • Delirium: Symptoms
    Delirium or Psychosis?Tables

  • in dementia

  • Dementia: Symptoms

  • in schizophrenia

  • Schizophrenia: Categories

    Cohort study

    Information Sources: Research Studies

    Coitus interruptus

    Contraception: Withdrawal Before Ejaculation

    Coke

    see Cocaine

    Colchicine

  • in familial Mediterranean fever

  • Familial Mediterranean Fever: Prevention and Treatment

  • in gout

  • Gout: Relieving the Acute Attack
    Drugs Used to Treat GoutTables

  • in pseudogout

  • Pseudogout: Prognosis and Treatment

    Cold antibody hemolytic anemia

    Autoimmune Hemolytic Anemia

    Cold autoinflammatory syndrome

    Hereditary Periodic Fever Syndromes

    Cold, common

    Common Cold
    Rhinitis: Acute Viral Rhinitis

  • in children

  • Respiratory Tract Infections

  • remedies for

  • Common Cold: Treatment
    Nonprescription Cold RemediesTables

    Cold environment

  • allergy to

  • Physical Allergy

  • injury from

  • Cold Injuries
    Spotlight on AgingSidebar

  • keeping warm in

  • Cold Injuries

  • water submersion and

  • Drowning: Effects of Cold

    Cold sores

    Herpes Simplex Virus Infections: Oral Infection

    Cold therapy (cryotherapy)

    Treatment of Pain and Inflammation: Cold Therapy (Cryotherapy)

  • after dental treatment

  • After Dental Treatment

  • in heat stroke

  • Heatstroke: Treatment

  • in sports injuries

  • Sports Injuries: Initial Treatment

  • in wart removal

  • Warts: Treatment

    Colesevelam

    Lipid-Lowering DrugsTables

    Colestipol

    Lipid-Lowering DrugsTables

    Colic

  • biliary (gallbladder pain)

  • Gallbladder and Biliary Tract
    Gallstones: Symptoms
    Cholecystitis: Symptoms

  • in infants

  • Fussiness, Excessive Crying, and Colic

  • renal

  • Symptoms: Causes
    Hydronephrosis: Symptoms
    Stones in the Urinary Tract: Symptoms

    Colistin

    AntibioticsTables

    Colitis

    see also Crohn's disease

  • antibiotic-associated

  • Microorganisms That Cause GastroenteritisTables
    Clostridium difficile–Induced Colitis
    What Are Clostridia?Sidebar
    Antibiotics: Side Effects and Allergic Reactions

  • collagenous

  • Collagenous Colitis and Lymphocytic Colitis

  • diversion

  • Diversion Colitis

  • hemmorhagic

  • Hemorrhagic Colitis

  • ischemic

  • Ischemic Colitis

  • lymphocytic

  • Collagenous Colitis and Lymphocytic Colitis

  • toxic

  • Ulcerative Colitis: Complications
    Ulcerative Colitis: Surgery

  • ulcerative

  • Ulcerative Colitis

    Collagenous colitis

    Collagenous Colitis and Lymphocytic Colitis

    Colles' fracture

    Osteoporosis: Symptoms
    Wrist Fractures

    Colon

    see Large intestine

    Colonic enema

    Symptoms: Enemas

    Colonic inertia

    Symptoms: Slowed Transit of Stool

    Colonoscopy

    Selected Screening Schedule for AdultsTables
    Diagnosis: Endoscopy
    Viewing the Digestive Tract With an EndoscopeFigures
    Colorectal Cancer: Screening Tests
    Diagnostic ProceduresTables

  • in cancer screening

  • Cancer Screening RecommendationsTables

  • in Crohn's disease

  • Crohn's Disease: Diagnosis

  • in diverticulitis

  • Diverticulitis: Symptoms and Diagnosis

  • in intestinal polyps

  • Colorectal Polyps: Symptoms and Diagnosis

  • in small intestine cancer

  • Small Intestine Cancer: Symptoms and Diagnosis

  • in ulcerative colitis

  • Ulcerative Colitis: Complications

  • virtual

  • Colorectal Cancer: Screening Tests

    Color blindness

    Inheritance of Single-Gene Disorders: Recessive Disorders
    Symptoms: Color Blindness
    What Causes Color Blindness?Sidebar

  • testing for

  • Diagnosis: Color Vision Testing

    Colorectal cancer

    Colorectal Cancer
    Staging Colon CancerFigures

  • screening for

  • Selected Screening Schedule for AdultsTables

  • ulcerative colitis and

  • Ulcerative Colitis: Complications

    Colostomy

    Understanding ColostomyFigures

  • in colorectal cancer

  • Colorectal Cancer: Prognosis and Treatment

  • diversion colitis after

  • Diversion Colitis

  • in diverticulitis

  • Diverticulitis: Treatment

  • in fecal incontinence

  • Symptoms: Treatment

  • in Hirschsprung disease

  • Digestive Tract Defects: Hirschsprung's Disease

  • travel with

  • Specific Medical Conditions and Travel: Other Conditions

    Colostrum

    Physical Changes: Breasts
    Feeding: Benefits of Breastfeeding

    Colposcopy

    Gynecologic Evaluation: Colposcopy
    Diagnostic ProceduresTables

    Coma

    Stupor and Coma
    Some Causes of Stupor and Coma Tables

  • diabetic

  • Diabetes Mellitus (DM): Type 1
    Diabetes Mellitus (DM): Type 2
    Diabetes Mellitus (DM): Treatment

  • hepatic

  • Hepatic Encephalopathy
    Alcohol: Long-Term Effects

  • irreversible

  • Medical Terms Related to Life-Sustaining TreatmentSidebar

  • myxedema

  • Hypothyroidism: Symptoms

  • in older person

  • Spotlight on AgingSidebar

    Common bile duct

    Digestive SystemFigures
    View of the Liver and GallbladderFigures

    Common cold

    see Cold, common

    Common hepatic duct

    Digestive SystemFigures
    Gallbladder and Biliary Tract
    View of the Liver and GallbladderFigures

    Common variable immunodeficiency

    Common Variable Immunodeficiency

    Communicable diseases

    see Infection

    Communication

  • disorders of

  • in children

  • Communication Disorders

  • with dying person

  • Communicating With a Dying PersonSidebar

  • with health care practitioners

  • Confidentiality and HIPAA
    Adherence to Drug Treatment: Improving Adherence

  • in medical decision-making

  • Medical Decision Making

  • with health care professionals

  • Choices to Make Before Death

  • parent-child

  • Talking With Children About Difficult TopicsSidebar
    What Is Bullying?Sidebar

    Compartment syndrome

    Fractures: Compartment Syndrome
    Fractures: Treatment of Compartment Syndrome

  • in electrical injury

  • Electrical Injuries: Symptoms

    Competency

    Legal Terms Related to Health CareSidebar
    Capacity to Make Health Care Decisions

    Complementary medicine

    Complementary and Alternative Medicine (CAM)

    Complement system

    Understanding the Immune SystemSidebar
    Biology of the Immune System: Substances
    Innate Immunity: Complement System

    Complete blood count (CBC)

    Diagnosis: Complete Blood Count
    Complete Blood Count (CBC) Tables
    Blood Tests*Tables

    Complex partial (psychomotor) seizures

    Seizure Disorders: Partial Seizures

    Complex regional pain syndrome

    Types: Complex Regional Pain Syndrome

    Compliance (adherence)

  • with drug treatment

  • Making the Most of Drug TreatmentSidebar
    How to Reduce the Risk of Drug-Drug InteractionsSidebar
    Adherence to Drug Treatment
    Reasons for Not Adhering to Drug TreatmentSidebar

    Compliance (adherence), with drug treatment

    Aging and Drugs: Benefits and Risks

    Compressed air injuries

    Diving and Compressed Air Injuries

    Compressed air injury

  • recompression therapy in

  • Recompression Therapy
    Disorders Treated With Hyperbaric Oxygen TherapySidebar

    Compression bandages

  • in leg ulcers

  • Deep Vein Thrombosis (DVT): Complications

    Compromised host

  • gastroenteritis in

  • Gastroenteritis: Viruses

    Compulsions

    Obsessive-Compulsive Disorder (OCD)

    Computed tomography (CT)

    Anatomy and Disease
    Computed Tomography
    Imaging the Interior: Computed TomographyFigures
    Some Disorders Detected by Computed Tomography Tables
    Diagnostic ProceduresTables

  • in acromegaly

  • Acromegaly and Gigantism: Diagnosis

  • in colorectal cancer screening (virtual colonoscopy)

  • Colorectal Cancer: Screening Tests

  • in Crohn's disease

  • Crohn's Disease: Diagnosis

  • in digestive system disorders

  • Diagnosis: Computed Tomography and Magnetic Resonance Imaging

  • electron beam

  • Angina: Diagnosis

  • of eye

  • Diagnosis: Computed Tomography and Magnetic Resonance Imaging

  • of fracture

  • Fractures: Diagnosis

  • in heart disease

  • Diagnosis: Computed Tomography

  • in Hodgkin lymphoma

  • Hodgkin Lymphoma: Staging

  • in idiopathic pulmonary fibrosis

  • Idiopathic Interstitial Pneumonias: Diagnosis
    Idiopathic Interstitial Pneumonias: Diagnosis

  • in kidney and urinary tract disorders

  • Diagnosis: Computed Tomography

  • of liver

  • Imaging Tests

  • in lung cancer

  • Cancer of the Lungs: Diagnosis
    Cancer Screening RecommendationsTables

  • in lung disorders

  • Diagnosis: Chest Imaging

  • multidetector row

  • Angina: Diagnosis

  • in musculoskeletal disorders

  • Diagnosis: Computed Tomography (CT) and Magnetic Resonance Imaging (MRI)

  • in neurologic disorders

  • How Imaging Tests Help in Diagnosing Nervous System DisordersTables

  • in pancreatitis

  • Acute Pancreatitis: Diagnosis

  • with positron emission tomography

  • Radionuclide Scanning: PET computed tomography (PET-CT)

  • radiation risks of

  • Comparing Radiation Doses For Different Tests* Tables
    Common Imaging Tests: Risks of Radiation

  • single-photon emission (SPECT)

  • Radionuclide Scanning: Single-Photon Emission Computed Tomography (SPECT)

    Computed tomography angiography (CTA)

    Diagnosis: Computed Tomography
    Pulmonary Embolism (PE): Diagnosis
    How Imaging Tests Help in Diagnosing Nervous System DisordersTables
    Computed Tomography: CT Angiography

    Computer keyboard, hand position at

    Proper Keyboard PositionFigures

    Conception

    see Fertilization

    Conchae, nasal

    Nose and Sinuses
    A Look Inside the Nose and ThroatFigures

    Concussion

    Concussion

    Condom

    How to Use a CondomSidebar
    How Effective Is Contraception?Tables
    Comparing Contraceptive MethodsTables
    Blocking Access: Barrier ContraceptivesFigures
    Contraception: Condoms

    Conduct disorder

    Conduct Disorder

    Conduction aphasia

    Specific Types of Dysfunction: Aphasia
    Testing a Person With AphasiaSidebar

    Conductive keratoplasty

    Refractive Disorders: Other Refractive Surgery

    Condylomata acuminata

    Genital Warts
    Growths on the Penis

    Condylomata lata

    Syphilis: Secondary Stage
    Growths on the Penis

    Cones

    Structure and Function

    Cone snail sting

    Marine Animal Stings and Bites: Mollusks

    Confidentiality

    Handling Medical Records
    Confidentiality and HIPAA

    Confusion

    What Is Confusion?Sidebar

  • in delirium

  • Delirium: Symptoms

  • drug-related

  • Some Serious Adverse Drug Reactions Tables

  • in dying person

  • Symptoms During a Fatal Illness: Confusion and Unconsciousness

  • hospitalization and

  • Problems Due to Hospitalization: Confusion and Decline in Mental Function

    Congenital adrenal hyperplasia

    Some Genetic Disorders That Can Be Detected Before BirthTables
    Genital Defects: Female Genital Defects

    Congenital disorders

    see Birth defects; Chromosome(s), abnormalities of; Genetics, disorders of

    Congenital myopathies

    Congenital Myopathies

    Congestive heart failure

    see Heart failure

    Conjugate gaze palsies

    Conjugate Gaze Palsies

    Conjunctiva

    An Inside Look at the EyeFigures
    Structure and Function
    Protective Features
    Conjunctival and Scleral Disorders

  • bleeding in

  • Symptoms: Red Eye

  • bleeding under

  • Blunt Injuries to the Eye: Subconjunctival Hemorrhage

  • dark spots on

  • Symptoms: Dark Spots

  • disorders of

  • Conjunctival and Scleral Disorders

  • inflammation of

  • see Conjunctivitis

  • noncancerous growths of

  • Pinguecula and PterygiumFigures

  • noncancerous growths on

  • Noncancerous Growths

  • sarcoidosis of

  • Sarcoidosis: Eyes

    Conjunctivitis

    Infectious Conjunctivitis
    What Is Pinkeye?Sidebar

  • allergic

  • Seasonal Allergies
    Seasonal Allergies: Eye Symptoms
    Allergic Conjunctivitis

  • gonococcal

  • Gonorrhea: Symptoms

  • granular

  • Trachoma

  • hemorrhagic

  • Enteroviral Infections: Common in ChildhoodSidebar

  • inclusion

  • Infectious Conjunctivitis

  • in newborn

  • Some Infections of NewbornsTables

  • in Reiter's syndrome

  • Other Types of Inflammatory Arthritis: Symptoms

    Connective tissue

    Tissues and Organs
    Biology of the Musculoskeletal System

  • disorders of

  • autoimmune

  • Autoimmune Disorders of Connective Tissue
    Characteristics of LupusSidebar

  • in diabetes mellitus

  • Long-Term Complications of DiabetesTables

  • hereditary

  • Hereditary Connective Tissue Disorders

  • mixed

  • Mixed Connective Tissue Disease (MCTD)

  • vasculitic

  • Vasculitic Disorders
    Some Disorders Characterized by VasculitisTables
    Biopsy of the Temporal ArteryFigures

    Conn's syndrome

    Hyperaldosteronism

    Consciousness

    see also Coma; Confusion
    Stupor and Coma

  • in breath-holding spells

  • Breath-Holding Spells

  • in concussion

  • Concussion

  • in delirium

  • Delirium

  • in head injury

  • Head Injuries: Severe Head Injury

  • in heat exhaustion

  • Heat Exhaustion: Symptoms and Diagnosis

  • in heatstroke

  • Heatstroke: Symptoms

  • impairment of

  • Stupor and Coma
    Variations in Impaired ConsciousnessSidebar

  • in lightning injury

  • Lightning Injuries: Symptoms

  • in low blood pressure

  • Fainting

  • in respiratory failure

  • Respiratory Failure: Symptoms

  • in seizures

  • Fainting: Diagnosis
    Seizure Disorders: Symptoms

    Consent

    Informed Consent
    Surgery: Decision Making
    What Participants Need to Know About Clinical Trials: Problems and Safeguards
    Elements of Informed Consent DocumentsSidebar

    Constipation

    Symptoms: Constipation
    Causes of ConstipationTables
    Drugs Used to Prevent or Treat ConstipationTables

  • bed rest and

  • Problems Due to Hospitalization: Constipation

  • in dying person

  • Symptoms During a Fatal Illness: Constipation

  • in dyschezia

  • Symptoms: Dyschezia
    Symptoms: Treatment

  • in infants and children

  • Bowel Problems: Constipation
    Encopresis
    Constipation

  • in irritable bowel syndrome

  • Irritable Bowel Syndrome (IBS)

  • postoperative

  • Surgery: Complications

  • during pregnancy

  • Physical Changes: Digestive Tract

    Constriction devices, in erectile dysfunction

    Erectile Dysfunction (ED): Constriction (binding) and Vacuum Devices

    Consumption

    see Tuberculosis

    Contact dermatitis

    Dermatitis: Contact Dermatitis
    Common Causes of Allergic Contact DermatitisSidebar
    Poison Ivy DermatitisSidebar

    Contact lenses

    Refractive Disorders: Corrective Lenses

  • amebic infection and

  • Amebic Infections Due to Free-Living Amebas: Amebic Keratitis

  • corneal abrasions and

  • Corneal Abrasions and Foreign Bodies: Causes

  • travel with

  • Specific Medical Conditions and Travel: Other Conditions

    Contagious diseases

    see Infection

    Continuity of care

    Continuity of Care

    Continuous ambulatory electrocardiography

    Diagnosis: Continuous Ambulatory Electrocardiography
    Holter Monitor: Continuous ECG ReadingsFigures

  • in angina evaluation

  • Angina: Diagnosis

  • in arrhythmias

  • Abnormal Heart Rhythms: Diagnosis

    Continuous positive airway pressure (CPAP)

    Mechanical Ventilation: Alternatives

  • in apnea of prematurity

  • Apnea of Prematurity: Treatment

  • in atelectasis

  • Atelectasis: Prevention

  • in obstructive sleep apnea

  • Sleep Apnea: Obstructive Sleep Apnea

  • in respiratory distress syndrome

  • Respiratory Distress Syndrome: Prevention and Treatment

  • in transient tachypnea of newborn

  • Transient Tachypnea

  • during travel

  • Specific Medical Conditions and Travel: Lung Disease

    Contraception and contraceptives

    Contraception
    How Effective Is Contraception?Tables
    Comparing Contraceptive MethodsTables

  • for adolescents

  • Contraception and Adolescent Pregnancy

  • after childbirth

  • Home (What to Expect): Family Planning

  • barrier

  • How Effective Is Contraception?Tables
    Comparing Contraceptive MethodsTables
    Contraception: Barrier Contraceptives
    Blocking Access: Barrier ContraceptivesFigures

  • condoms

  • How Effective Is Contraception?Tables
    Comparing Contraceptive MethodsTables
    Blocking Access: Barrier ContraceptivesFigures
    Contraception: Condoms

  • effectiveness of

  • How Effective Is Contraception?Tables
    Comparing Contraceptive MethodsTables

  • emergency

  • Contraception: Emergency Contraception

  • hormonal methods for

  • How Effective Is Contraception?Tables
    Comparing Contraceptive MethodsTables
    Contraception: Hormonal Methods
    When Taking Combination Oral Contraceptives Is RestrictedSidebar

  • implants in

  • How Effective Is Contraception?Tables
    Comparing Contraceptive MethodsTables
    Contraception: Contraceptive Implants

  • injectable

  • How Effective Is Contraception?Tables
    Comparing Contraceptive MethodsTables
    Contraception: Contraceptive Injections

  • intrauterine devices in

  • How Effective Is Contraception?Tables
    Comparing Contraceptive MethodsTables
    Contraception: Intrauterine Devices
    Understanding Intrauterine DevicesFigures

  • oral

  • see also Oral contraceptives
    How Effective Is Contraception?Tables
    Comparing Contraceptive MethodsTables
    Contraception: Oral Contraceptives

  • rhythm methods in

  • How Effective Is Contraception?Tables
    Comparing Contraceptive MethodsTables
    Contraception: Timing Methods
    All in the Timing: Natural Family PlanningFigures

  • skin patches in

  • Contraception: Skin Patches and Vaginal Rings

  • Sponge

  • How Effective Is Contraception?Tables
    Comparing Contraceptive MethodsTables

  • sterilization in

  • Sterilization
    Disrupting the Tubes: Sterilization in WomenFigures

  • vaginal rings in

  • Contraception: Skin Patches and Vaginal Rings

  • withdrawal method in

  • How Effective Is Contraception?Tables
    Comparing Contraceptive MethodsTables

    Contractions

  • after childbirth

  • Problems Affecting the Woman: Excessive Uterine Bleeding
    Home (What to Expect): Abdomen

  • in labor

  • see Labor and delivery

    Contracture

  • after amputation

  • Specific Problems: Leg (Lower-Limb) Amputation

  • after stroke

  • Preventing and Treating Problems After a StrokeTables

  • dupuytrens

  • Deformities: Dupuytren's Contracture

    Contrast agents

    Common Imaging Tests: Contrast Agents

    Contrast agents, problems with

    Anaphylactoid Versus AnaphylacticSidebar

    Contusion

  • bladder

  • Bladder Injuries: Treatment

  • brain

  • Cerebral Contusions and Lacerations

  • eye

  • Blunt Injuries to the Eye: Black Eye

  • first aid for

  • Soft Tissue Injuries

  • kidney

  • Kidney Injuries: Minor to SevereFigures

  • urethra

  • Urethral Injuries

    Conversion disorder

    Conversion Disorder
    Somatoform Disorders in Children

    Convulsions

    see Seizures

    Coombs test

    Autoimmune Hemolytic Anemia: Diagnosis

    Coordination

  • disorders of

  • Coordination Disorders
    Causes of Coordination DisordersTables

  • loss of

  • in multiple system atrophy

  • Multiple System Atrophy: Symptoms

  • testing of

  • Physical Examination: Coordination, Balance, and Gait

    COPD (chronic obstructive pulmonary disease)

    Chronic Obstructive Pulmonary Disease (COPD)

  • drug use and education in

  • Drug Use and Education

  • prevention of

  • Selected Strategies for Preventing Some Major Health ProblemsTables

  • rehabilitation for

  • Rehabilitation for Lung and Airway Disorders
    Chronic Obstructive Pulmonary Disease (COPD): Pulmonary Rehabilitation

    Coping mechanisms

    Common Coping MechanismsTables

    Copper

    MineralsTables
    Copper
    Copper: Wilson's Disease

  • deficiency of

  • Copper: Copper Deficiency

  • excess of

  • Copper: Copper Excess

  • liver accumulation of (Wilson's disease)

  • Copper: Wilson's Disease

  • hepatitis and

  • Chronic Hepatitis: Causes

  • reference range for

  • Blood Tests*Tables

    Copperhead snake bite

    Snake Bites

    Copper IUD

    Contraception: Intrauterine Devices
    Understanding Intrauterine DevicesFigures

    Coprolalia

    Tics: Symptoms

    Coral snake bite

    Snake Bites

    Coral sting

    Marine Animal Stings and Bites: Jellyfish

    Cord

    see Umbilical cord

    Core decompression

    Osteonecrosis: Treatment

    Corkscrew esophagus

    Abnormal Propulsion of Food: Esophageal Spasm

    Cork worker's lung

    What Causes Hypersensitivity Pneumonitis? Tables

    Cornea

    An Inside Look at the EyeFigures
    Structure and Function

  • abrasion of

  • Corneal Abrasions and Foreign Bodies

  • abrasion of, in infant

  • Fussiness, Excessive Crying, and Colic

  • age-associated changes in

  • Effects of Aging

  • amebic infection of

  • Amebic Infections Due to Free-Living Amebas: Amebic Keratitis

  • disorders of

  • Corneal Disorders

  • drying of

  • Keratomalacia

  • herpes simplex virus infection of

  • Herpes Simplex Virus Infections: Other Infections and Complications
    Herpes Simplex Keratitis

  • pain in

  • Symptoms: Eye Pain

  • shape changes in

  • Keratoconus

  • swelling of

  • Bullous Keratopathy

  • thickness of

  • Diagnosis: Pachymetry

  • transplantation of

  • Transplantation of Other Organs
    Corneal Transplants and Why They Usually WorkSidebar

  • ulcers of

  • Corneal Ulcer
    Peripheral Ulcerative Keratitis

  • contact lenses and

  • Refractive Disorders: Contact Lenses

    Corns

    Corns and Calluses

    Cornstarch

    Treatment: Drying Agents
    Stools and Urine

    Coronary arteries

    Heart: Blood Supply of the Heart
    Supplying the Heart With BloodFigures

  • aneurysm of, in Kawasaki disease

  • What Is Kawasaki Disease?Sidebar

  • angiography of

  • Diagnosis: Coronary Angiography
    Angina: Diagnosis

  • angioplasty of

  • Diagnosis: Cardiac Catheterization
    Coronary Artery Disease: Percutaneous Coronary Intervention
    Understanding Percutaneous Coronary Intervention (PCI)Figures

  • bypass surgery of

  • Coronary Artery Disease: Coronary Artery Bypass Grafting
    Coronary Artery Bypass GraftingFigures
    Angina: Revascularization Procedures

  • catheterization of

  • Diagnosis: Cardiac Catheterization and Coronary Angiography

  • disease of

  • Coronary Artery Disease
    Coronary Artery Bypass GraftingFigures

  • after menopause

  • Menopause: After Menopause

  • angina in

  • Understanding Percutaneous Coronary Intervention (PCI)Figures
    Angina
    Drugs Used to Treat Coronary Artery DiseaseTables

  • in cardiomyopathy

  • Dilated Cardiomyopathy: Causes

  • in familial hypercholesterolemia

  • Dyslipidemia: Hereditary Dyslipidemias

  • heart failure with

  • Heart Failure: Systolic Dysfunction

  • prevention of

  • Coronary Artery Disease: Prevention

  • risk factors for

  • Coronary Artery Disease: Risk Factors

  • radionuclide imaging (scanning) of

  • Diagnosis: Radionuclide Imaging

    Coronary care unit

    Special Care UnitsSidebar

    Coronary stent, travel and

    Specific Medical Conditions and Travel: Heart Disease

    Coronary thrombosis

    see Heart attack

    Corpora cavernosa

    Structure

    Cor pulmonale

    Cor Pulmonale: A Disorder Stemming From Pulmonary HypertensionSidebar

    Corpus callosum

    Brain: Cerebrum

    Corpus luteum

    Changes During the Menstrual CycleFigures
    Menstrual Cycle: Luteal Phase

  • cysts of

  • Noncancerous Ovarian Growths: Functional Cysts

    Corpus spongiosum

    Structure

    Corti, organ of

    Ears: Inner Ear

    Cortical necrosis

    Renal Cortical Necrosis

    Corticobasal ganglionic degeneration

    Parkinsonism: Symptoms

    Corticosteroids

    see also Immunosuppressive drugs (immunomodulators)
    Corticosteroids: Uses and Side EffectsSidebar

  • adrenal gland suppression by

  • Suppression of Adrenal Function by CorticosteroidsSidebar

  • in allergic conjunctivitis

  • Seasonal Allergies: Eye Symptoms

  • in allergic rhinitis

  • Seasonal Allergies: Nasal Symptoms

  • in allergy

  • Allergic Reactions: Corticosteroids

  • in aspergillosis

  • Allergic Bronchopulmonary Aspergillosis: Treatment

  • in asthma

  • Asthma: Corticosteroids
    Drugs Used to Treat AsthmaTables

  • in autoimmune disorders

  • Chronic Hepatitis: Autoimmune Hepatitis
    Autoimmune Disorders: Treatment

  • in Bell's palsy

  • Bell's Palsy: Treatment and Prognosis

  • for canker sores

  • Mouth Sores: Treatment

  • control of

  • Adrenal Gland Disorders

  • in COPD

  • Chronic Obstructive Pulmonary Disease (COPD): Treatment of Symptoms

  • in cough

  • Symptoms: Bronchodilators, Corticosteroids, Antihistamines, and Decongestants

  • in Crohn's disease

  • Crohn's Disease: Anti-inflammatory Drugs
    Drugs That Reduce Bowel InflammationTables

  • in croup

  • Croup: Treatment

  • in Cushing's disease

  • Cushing's Syndrome

  • deficiency of

  • see also Addison's disease
    Addison's Disease

  • depression with

  • Depression: Causes

  • in dermatomyositis

  • Polymyositis and Dermatomyositis: Treatment

  • in dying patient

  • Symptoms During a Fatal Illness: Pain

  • in eosinophilic fasciitis

  • Eosinophilic Fasciitis: Prognosis and Treatment

  • in eosinophilic pneumonia

  • Eosinophilic Pneumonia: Prognosis and Treatment

  • in fetal lung immaturity

  • Prematurity: Prevention
    Respiratory Distress Syndrome: Prevention and Treatment

  • in fungal infection

  • Ringworm (Tinea): Treatment

  • generic substitutions for

  • When Generic Substitution May Not Be Appropriate Tables

  • in gout

  • Gout: Relieving the Acute Attack
    Drugs Used to Treat GoutTables

  • in idiopathic pulmonary fibrosis

  • Idiopathic Interstitial Pneumonias: Prognosis and Treatment

  • in meningitis

  • Acute Bacterial Meningitis: Treatment

  • in itching

  • Itching: Treatment

  • in lichen planus

  • Lichen Planus: Prognosis and Treatment

  • in multiple myeloma

  • Multiple Myeloma: Treatment and Prognosis

  • in multiple sclerosis

  • Multiple Sclerosis (MS): Treatment

  • in muscular dystrophy

  • Duchenne and Becker Muscular Dystrophies: Treatment

  • in nasal polyps

  • Nasal Polyps

  • in nephrotic syndrome

  • Nephrotic Syndrome: Prevention and Treatment

  • osteonecrosis and

  • Osteonecrosis: Causes

  • overproduction of (Cushing's syndrome)

  • Cushing's Syndrome

  • in pemphigus

  • Pemphigus Vulgaris: Diagnosis and Treatment

  • in polymyositis

  • Polymyositis and Dermatomyositis: Treatment

  • in preterm labor

  • Labor and Timing Problems: Preterm Labor

  • in rapidly progressive glomerulonephritis

  • Glomerulonephritis (Nephritic Syndrome): Treatment

  • in rheumatoid arthritis

  • Drugs Used to Treat Rheumatoid ArthritisTables
    Rheumatoid Arthritis (RA): Corticosteroids

  • in sarcoidosis

  • Sarcoidosis: Treatment

  • in seborrheic dermatitis

  • Dermatitis: Treatment

  • in spinal cord injury

  • Injuries of the Spinal Cord and Vertebrae: Treatment

  • in sports injuries

  • Sports Injuries: Initial Treatment

  • in Stevens-Johnson syndrome

  • Stevens-Johnson Syndrome (SJS) and Toxic Epidermal Necrolysis: Treatment

  • in systemic lupus erythematosus

  • Systemic Lupus Erythematosus (SLE): Treatment

  • in temporal (giant cell) arteritis

  • Giant Cell Arteritis: Treatment

  • in tendinitis

  • Tendinitis and Tenosynovitis: Treatment

  • topical

  • Treatment: Anti-inflammatory Agents

  • in toxic epidermal necrolysis

  • Stevens-Johnson Syndrome (SJS) and Toxic Epidermal Necrolysis: Treatment

  • in transplantation

  • Drugs Used to Prevent Transplant RejectionTables

  • in ulcerative colitis

  • Ulcerative Colitis: Anti-inflammatory Drugs
    Drugs That Reduce Bowel InflammationTables

  • vitamin deficiencies and

  • Some Drugs That Cause Vitamin DeficiencyTables

    Corticotropin (ACTH)

    Major Hormones Tables
    Pituitary: The Master GlandFigures
    Pituitary Gland Disorders
    Adrenal Gland Disorders

  • in Addison's disease

  • Addison's Disease

  • deficiency of

  • Hypopituitarism: Adrenocorticotropic Hormone Deficiency

  • measurement of

  • Hypopituitarism: Diagnosis

  • overproduction of

  • Cushing's Syndrome

    Corticotropin-releasing hormone

    Adrenal Gland Disorders

    Cortisol

    see also Corticosteroids
    Major Hormones Tables

  • in Cushing's syndrome

  • Cushing's Syndrome: Diagnosis

    Cortisone

    see Corticosteroids

    Cor triatriatum

    Mitral Stenosis: Cause

    Corynebacterium minutissimum infection

    Erythrasma

    Coryza

    see Cold, common

    Cosmetic dentistry

    A Brighter Smile Through Cosmetic DentistrySidebar

    Cosmetics, dermatitis from

    Dermatitis: Contact Dermatitis
    Common Causes of Allergic Contact DermatitisSidebar

    Cosmetic surgery

    Cosmetic SurgerySidebar

    Cost-benefit study

    Information Sources: Research Studies

    Cottonmouth snake bite

    Snake Bites

    Cough

    Symptoms: Cough

  • in asthma

  • Asthma in Children: Symptoms

  • blood in

  • Symptoms: Hemoptysis

  • in bronchiectasis

  • Bronchiectasis: Symptoms

  • in COPD

  • Chronic Obstructive Pulmonary Disease (COPD): Symptoms

  • in croup

  • Croup: Symptoms and Diagnosis

  • cystic fibrosis

  • Cystic Fibrosis (CF): Symptoms

  • fainting with

  • Fainting: Reduced Blood Flow

  • in Hodgkinlymphoma

  • Symptoms of Hodgkin LymphomaTables

  • in lung cancer

  • Cancer of the Lungs: Symptoms

  • remedies for

  • Symptoms: Treatment
    Common Cold: Treatment
    Nonprescription Cold RemediesTables

  • in tuberculosis

  • Tuberculosis: Pulmonary Tuberculosis

  • whooping (pertussis)

  • Pertussis

  • immunization for

  • Protecting Children Against Disease Through Vaccines Tables
    Protecting Adults Against Common Infectious DiseasesTables
    Common Vaccinations: Diphtheria-Tetanus-Pertussis
    Vaccinating Infants and ChildrenFigures
    Bacterial Infections Preventable With Routine ImmunizationSidebar

    Counseling

  • for children of divorce

  • Divorce

  • genetic

  • Genetic Screening
    Who Should Consider Genetic Screening?Tables

  • in muscular dystrophy

  • Duchenne and Becker Muscular Dystrophies: Diagnosis

  • in pulmonary medicine

  • Psychosocial Counseling

  • in sickle cell disease

  • Sickle Cell Disease: Screening

    Coup contrecoup injury

    Cerebral Contusions and Lacerations

    Coxibs

    see Cyclooxygenase-2 (COX-2) inhibitors

    Coxiella burnetii infection (Q fever)

    Some Rickettsial and Related InfectionsTables

    COX-2 inhibitors

    see Cyclooxygenase-2 (COX-2) inhibitors

    Coxsackie B virus infection

    Dilated Cardiomyopathy: Causes

    Coxsackievirus infection

  • pleural

  • Viral Pleuritis

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