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

Reactive arthritis (Reiter's syndrome)

Other Types of Inflammatory Arthritis: Reactive Arthritis

Reading

Intellectual Development
Promoting Optimal Health and Development
Learning Disorders

Receptor(s)

  • of airways

  • Asthma

  • cell

  • Cells
    Understanding the Immune SystemSidebar

  • for drugs

  • Site Selectivity: Receptors on Cells
    A Perfect FitFigures
    Targets in The Body: Cell ReceptorsTables
    Drug Action: Affinity and Intrinsic Activity

  • for hormones

  • Endocrine Function
    Breast Cancer: Characteristics

  • pain

  • Pain: Pain Pathways

  • for smell

  • Nose and Sinuses

    Recommended dietary allowance (RDA)

  • for minerals

  • MineralsTables

  • for vitamins

  • Vitamins
    VitaminsTables

    Recompression therapy

    Air Embolism: Treatment
    Decompression Sickness: Recompression Therapy
    Recompression Therapy
    Disorders Treated With Hyperbaric Oxygen TherapySidebar

    Rectocele

    When the Bottom Falls Out: Prolapse in the PelvisFigures
    Pelvic Floor Disorders: Rectocele

    Rectovaginal examination

    Gynecologic Evaluation: Gynecologic Examination

    Rectum

    see also Anus
    Digestive SystemFigures
    Rectum and Anus
    Internal Female Genital OrgansFigures

  • abscess of

  • Anorectal Abscess

  • age-associated changes in

  • Effects of Aging: Large Intestine and Rectum

  • biology of

  • Anal and Rectal Disorders

  • bleeding in

  • in Meckel's diverticulum

  • Meckel's Diverticulum: Symptoms and Diagnosis

  • cancer of

  • Colorectal Cancer

  • during pregnancy

  • Cancer During Pregnancy

  • screening for

  • Cancer Screening RecommendationsTables

  • drug administration by

  • Administration: Rectal Route

  • examination of

  • Diagnosis: Medical History and Physical Examination
    Diagnosis: Occult Blood Tests
    Diagnosis
    Cancer Screening RecommendationsTables

  • in benign prostatic hyperplasia

  • Benign Prostatic Hyperplasia (BPH): Diagnosis

  • in prostate cancer

  • Prostate Cancer: Screening

  • fistula of

  • Anorectal Fistula

  • foreign objects in

  • Foreign Objects

  • hemorrhoids of

  • Hemorrhoids
    Banding a HemorrhoidFigures

  • inflammation of

  • see Proctitis

  • levator syndrome of

  • Levator Syndrome

  • polyps of

  • Colorectal Polyps

  • prolapse of

  • Rectal Prolapse
    Effects of Aging
    Pelvic Floor Disorders
    When the Bottom Falls Out: Prolapse in the PelvisFigures

  • spasm of

  • Levator Syndrome

  • temperature taking from

  • How to Take a Child's TemperatureSidebar

    Recurrent aphthous stomatitis

    Mouth Sores: Recurrent Aphthous Stomatitis

    Red blood cells

  • babesiosis of

  • Babesiosis

  • biology of

  • Components of Blood: Red Blood Cells

  • deficiency of

  • see Anemia(s)

  • examination of

  • Diagnosis: Complete Blood Count
    Complete Blood Count (CBC) Tables

  • excess of (polycythemia)

  • Components of Blood: Red Blood Cells
    Major Myeloproliferative Disorders Tables
    Polycythemia Vera
    What Are the Other Types of Polycythemia?Sidebar

  • in newborn

  • Polycythemia in the Newborn

  • formation of

  • Formation of Blood Cells

  • hemoglobin in

  • see Hemoglobin

  • in kidney cancer

  • Kidney Cancer: Symptoms

  • malaria effects on

  • Malaria

  • radiation effects on

  • Radiation Injury: Acute Radiation Illness

  • reference range for

  • Blood Tests*Tables

  • shape of

  • Red Blood Cell ShapesFigures

  • sickle-shaped

  • Sickle Cell Disease
    Red Blood Cell ShapesFigures

  • transfusion of

  • Types of Transfusions: Red Blood Cells

    Red color

  • in mouth

  • Precancerous Lesions

  • of tongue

  • Tongue Disorders: Discoloration

    Red eye

    Symptoms: Red Eye

    Red-green color blindness

    Inheritance of Single-Gene Disorders: Recessive Disorders

    Reed-Sternberg cell

    Hodgkin Lymphoma: Diagnosis

    Referred pain

    What Is Referred Pain?Figures
    Pain: Pain Pathways
    Low Back Pain: Causes
    Low Back Pain: Referred Pain
    Neck Pain: Causes

    Reflexes

    Reflex Arc: A No-BrainerFigures

  • acoustic

  • Ears: Middle Ear

  • diving

  • Drowning: Effects of Cold

  • knee jerk

  • Reflex Arc: A No-BrainerFigures

  • let-down

  • Home (What to Expect): Abdomen
    Feeding: Breastfeeding Procedure

  • in newborn

  • Physical Examination
    Three Common Reflexes of NewbornsSidebar

  • rooting

  • Three Common Reflexes of NewbornsSidebar
    Feeding: Breastfeeding Procedure

  • in spinal cord injury

  • Spinal Cord Disorders: Symptoms

  • testing of

  • Physical Examination: Reflexes
    Reflex Arc: A No-BrainerFigures
    Diagnostic ProceduresTables

    Reflexology

    Manipulative and Body-Based Therapies: Reflexology

    Reflex sympathetic dystrophy

    Types: Complex Regional Pain Syndrome

    Reflux

  • acid

  • Gastroesophageal Reflux (GERD)

  • in infants and children

  • Feeding Problems: Spitting Up
    Gastroesophageal Reflux

  • urine (vesicoureteral)

  • Urinary Tract Infection (UTI)

    Refractive disorders

    What Is Astigmatism?Figures
    Symptoms: Refractive Error
    Refractive Disorders
    Understanding RefractionFigures

  • in children

  • Refractive Errors in ChildrenSidebar

  • diagnosis of

  • Diagnosis: Refraction

    Refsum's disease

    Other Rare Hereditary Disorders of Lipid MetabolismSidebar

    Refusal of care

    Informed Consent: Refusing Care

    Regional enteritis (Crohn's disease)

    Crohn's Disease
    Drugs That Reduce Bowel InflammationTables

    Regurgitation

  • aortic valve

  • Aortic Regurgitation

  • in Marfan syndrome

  • Marfan Syndrome

  • of food

  • see also Nausea; Vomiting
    Symptoms: Regurgitation
    Feeding Problems: Spitting Up
    Gastroesophageal Reflux

  • in infants

  • Feeding

  • mitral valve

  • Understanding Stenosis and RegurgitationFigures
    Mitral Regurgitation
    Rheumatic Fever: Heart

  • of stomach acid

  • Gastroesophageal Reflux (GERD)

  • tricuspid valve

  • Tricuspid Regurgitation

    Rehabilitation

    see also Physical therapy
    Rehabilitation
    Increasing the Shoulder's Range of MotionFigures
    Helping a Person WalkFigures
    What Can Interfere With Doing a Simple Task?Tables
    Just the Right HeightFigures

  • after amputation

  • Specific Problems: Limb Amputation

  • after brain injury

  • Specific Problems: Brain Injuries

  • after fracture

  • Fractures: Rehabilitation and Prognosis

  • after heart attack

  • Acute Coronary Syndromes (Heart Attack; Myocardial Infarction; Unstable Angina): Rehabilitation

  • after hip fracture

  • Specific Problems: Hip Fracture

  • after spinal cord injury

  • Specific Problems: Spinal Injuries

  • after sports injuries

  • Sports Injuries: Rehabilitation

  • after stroke

  • Specific Problems: Brain Injuries
    Specific Problems: Speech Disorders
    Stroke (CVA): Treatment

  • in alcohol abuse

  • Alcohol: Detoxification and Rehabilitation

  • for blindness

  • Specific Problems: Blindness

  • in chronic lung disease

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

  • for drug dependence

  • Antianxiety and Sedative Drugs: Detoxification and Rehabilitation
    Opioids: Detoxification

  • for hearing loss

  • Hearing Loss and Deafness: Other Means of Coping With Hearing Loss

  • for heart disease

  • Specific Problems: Heart Disorders

  • information resources on

  • D

  • in schizophrenia

  • Schizophrenia: Rehabilitation and Community Support Activities

  • for speech disorders

  • Specific Problems: Speech Disorders

    Rehydration solutions

    Cholera: Treatment
    Problems at the Destination: Traveler's Diarrhea

    Reiki

    Energy Therapies: Reiki

    Reiter's syndrome

    Other Types of Inflammatory Arthritis: Reactive Arthritis

    Relapsing fever

    Other Bacterial InfectionsTables

    Relapsing iridocyclitis

    Behçet's Syndrome: Symptoms

    Relapsing polychondritis

    Relapsing Polychondritis

    Relaxation techniques

    Mind-Body Techniques: Relaxation Techniques

    Reliability, of test

    Medical Testing Decisions: Performing Tests and Interpreting Results

    REM (rapid eye movement) sleep

    Sleep Disorders
    Stages of the Sleep CycleFigures

    Renal arteries

    Kidneys
    Viewing the Urinary TractFigures
    Kidney's Blood SupplyFigures

  • blockage (occlusive disease) of

  • Occlusive Peripheral Arterial Disease: Renal Arteries
    Occlusive Peripheral Arterial Disease: Renal Arteries
    Blockage of the Renal Arteries
    Fibromuscular Dysplasia: A Cause of Renal Artery BlockageSidebar

    Renal cell carcinoma

    Kidney Cancer

    Renal cortical necrosis

    Renal Cortical Necrosis

    Renal failure

    see Kidney failure

    Renal pelvis, transitional cell carcinoma of

    Renal Pelvis and Ureter Cancer

    Renal tubular acidosis

    Renal Tubular Acidosis (RTA)
    Some Types of Renal Tubular Acidosis Tables

    Renal veins

    Kidneys
    Viewing the Urinary TractFigures
    Kidney's Blood SupplyFigures

  • blockage (thrombosis) of

  • Renal Vein Thrombosis

  • metastasis of

  • Kidney Cancer: Treatment

    Rendu-Osler-Weber disease (hereditary hemorrhagic telangiectasia)

    Hereditary Hemorrhagic Telangiectasia

    Renin

    High Blood Pressure: The Body's Control of Blood Pressure
    Regulating Blood Pressure: The Renin-Angiotensin-Aldosterone SystemFigures
    Kidneys: Regulation of Blood Pressure
    Endocrine Glands
    Major Hormones Tables

    Renin-angiotensin-aldosterone system

    High Blood Pressure: The Body's Control of Blood Pressure
    Regulating Blood Pressure: The Renin-Angiotensin-Aldosterone SystemFigures
    Kidneys: Regulation of Blood Pressure
    Adrenal Gland Disorders
    Hyperaldosteronism

    Renovascular hypertension

    Occlusive Peripheral Arterial Disease: Renal Arteries

    Repaglinide

    Oral Antihyperglycemic DrugsTables

    Reproductive system

  • birth defects of

  • Genital Defects

  • development of

  • Physical Development

  • failure of (infertility)

  • Infertility
    What Causes Infertility in Men?Tables

  • female

  • Major Organ SystemsTables
    Biology of the Female Reproductive System
    External Female Genital OrgansFigures
    Internal Female Genital OrgansFigures
    Changes During the Menstrual CycleFigures

  • age-associated changes in

  • Effects of Aging
    Changes in the Body: Reproductive Organs

  • cancer of

  • Cancers of the Female Reproductive System
    Staging Cancers of the Female Reproductive SystemTables

  • evaluation of

  • Gynecologic Evaluation

  • male

  • Major Organ SystemsTables
    Biology of the Male Reproductive System
    Male Reproductive OrgansFigures

  • age-associated changes in

  • Effects of Aging
    Changes in the Body: Reproductive Organs

  • birth defects of

  • Other Birth DefectsTables

  • maturation of

  • see Puberty

    Research studies

    The Science of Medicine: Comparing Apples to Apples

    Reserpine, in elderly persons

    Some Drugs Particularly Likely to Cause Problems in Older PeopleTables

    Resident flora

    Resident Flora

    Resistance

  • to disease

  • see Immune system; Immunization

  • drug

  • Tolerance and Resistance

    Resistance training

    Starting an Exercise Program: Strength Training

    Resistin

    Major Hormones Tables

    Resources for help and information

    Resources for Help and Information

    Respiration

    see also Breath; Breathing

  • artificial

  • see Resuscitation, cardiopulmonary (CPR)

  • Cheyne-Stokes

  • Heart Failure: Symptoms
    Sleep Apnea: Symptoms
    Stupor and Coma: Symptoms
    Stupor and Coma: Physical Examination

    Respirator

    see Ventilation, mechanical

    Respiratory acidosis

    Acidosis
    Major Causes of Respiratory Acidosis and AlkalosisSidebar

    Respiratory alkalosis

    Major Causes of Respiratory Acidosis and AlkalosisSidebar
    Alkalosis

    Respiratory bronchiolitis-associated interstitial lung disease

    Comparing Types Of Idiopathic Interstitial PneumoniasTables
    Idiopathic Interstitial Pneumonias: Respiratory Bronchiolitis-Associated Interstitial Lung Disease and Desquamative Interstitial Pneumonia

    Respiratory center, in premature infant

    Apnea of Prematurity

    Respiratory distress syndrome

    Acute Respiratory Distress Syndrome (ARDS)
    Causes of Acute Respiratory Distress SyndromeSidebar

  • in premature infant

  • Prematurity: Underdeveloped Lungs
    Respiratory Distress Syndrome

    Respiratory failure

    Respiratory Failure
    What Causes Respiratory Failure? Tables

    Respiratory infections

    see also Bronchitis; Pneumonia; SARS
    Common Cold
    Influenza

  • in children

  • Respiratory Tract Infections

  • severe acute (SARS)

  • Severe Acute Respiratory Syndrome (SARS)

    Respiratory syncytial virus (RSV) infection

    Bronchiolitis

    Respiratory system

    see also Airways; Lungs
    Major Organ SystemsTables
    Respiratory System

    Respiratory therapy

    Chest Physical Therapy

  • in cystic fibrosis

  • Cystic Fibrosis (CF): Treatment

    Respite care

    Services to Know AboutSidebar

    Resting tremor

    Tremor: Resting Tremor

    Restraints, for delirious person

    Delirium: Treatment

    Resuscitation

  • cardiopulmonary (CPR)

  • Medical Terms Related to Life-Sustaining TreatmentSidebar
    Cardiac Arrest: First-Aid Treatment
    Opening an Airway in an AdultFigures
    Performing Chest Compressions in an AdultFigures
    Performing Chest Compressions in a ChildFigures

  • in hypothermia

  • Hypothermia: Treatment

  • order against

  • Do-Not-Resuscitate (DNR) Orders

  • of dying person

  • Treatment Options: Resuscitation

  • of newborn

  • Fetus or Newborn Problems: Breathing Problems

    Retardation, mental

    see Mental retardation

    Retching

    see Nausea; Vomiting

    Reticulocyte count

    Diagnosis: Reticulocyte Count

    Reticulum cell sarcoma

    Bone and Joint Tumors: Lymphoma of Bone

    Retina

    see also Eye(s)
    An Inside Look at the EyeFigures
    Structure and Function
    Retinal Disorders
    Viewing the RetinaFigures

  • age-associated changes in

  • Effects of Aging

  • cancer of

  • Cancers Affecting the Retina
    Retinoblastoma

  • cytomegalovirus infection in

  • Cytomegalovirus (CMV) Infection: Symptoms

  • degeneration of

  • see also Retinopathy
    Retinitis Pigmentosa

  • detachment of

  • Symptoms: Floaters
    Blunt Injuries to the Eye: Retinal Detachment
    Uveitis: Symptoms
    Detachment of the Retina

  • in Marfan syndrome

  • Marfan Syndrome

  • diabetes and

  • Diabetes Mellitus (DM): Complications
    Long-Term Complications of DiabetesTables
    Diabetic Retinopathy

  • disorders of

  • see also Retinopathy
    Retinal Disorders

  • electroretinography of

  • Diagnosis: Electroretinography

  • examination of

  • Diagnosis: Ophthalmoscopy
    What Is an Ophthalmoscope?Figures

  • in heart disease

  • Diagnosis: Medical History and Physical Examination

  • in high blood pressure

  • High Blood Pressure: Diagnosis
    Hypertensive Retinopathy

  • in premature infant

  • Retinopathy of Prematurity (ROP)

  • in retinal vessel blockage

  • Blockage of Central Retinal Arteries and Veins: Diagnosis

  • hemorrhage from

  • altitude sickness and

  • Altitude Illness: Other Symptoms

  • high blood pressure and

  • High Blood Pressure: Diagnosis
    Hypertensive Retinopathy

  • macular degeneration of

  • Age-Related Macular Degeneration

  • membrane over

  • Epiretinal Membrane

    Retinal artery

    Muscles, Nerves, and Blood Vessels
    Retinal Disorders
    Viewing the RetinaFigures

  • blockage of

  • Blockage of Central Retinal Arteries and Veins

    Retinal vein

    Viewing the RetinaFigures

  • blockage of

  • Blockage of Central Retinal Arteries and Veins

    Retinitis pigmentosa

    Retinitis Pigmentosa

    Retinoblastoma

    Retinoblastoma

    Retinocytoma

    Retinoblastoma: Prognosis and Treatment

    Retinoic acid

    Acute Myelocytic Leukemia (AML): Treatment

    Retinol (vitamin A)

    VitaminsTables
    Vitamin A

  • deficiency of

  • Vitamin A: Vitamin A Deficiency

  • corneal disorders with

  • Corneal Ulcer
    Keratomalacia

  • excess of

  • Vitamin A: Vitamin A Excess

    Retinopathy

    see also Retina

  • in diabetes

  • Diabetes Mellitus (DM): Complications
    Long-Term Complications of DiabetesTables
    Diabetic Retinopathy

  • in high blood pressure

  • High Blood Pressure: Diagnosis
    Hypertensive Retinopathy

  • of prematurity

  • Preventive Health Care Visits
    Retinopathy of Prematurity (ROP)

    Retirement

  • aging and

  • Life-Changing Events: Retirement

    Retirement communities

    Retirement Communities

    Retractile testes

    Undescended and Retractile Testes

    Retrograde ejaculation

    Retrograde Ejaculation

    Retrograde urethrography

    Bladder Infection (Cystitis): Diagnosis

    Retrograde urography

    Diagnostic ProceduresTables

    Retroperitoneal abscess

    Abdominal Abscesses: Causes and Symptoms

    Retropharyngeal abscess

    Retropharyngeal Abscess
    Pharyngitis (Sore Throat)

    Retrovirus

    What Is a Retrovirus?Sidebar

    Rett syndrome

    Comparing Autism Spectrum DisordersTables
    Autism Spectrum Disorders: Rett Syndrome

    Reverse transcriptase inhibitors

    Human Immunodeficiency Virus HIV Infection: Antiretroviral Drugs
    Human Immunodeficiency Virus (HIV) Infection: Drug Treatment

    Reye's syndrome

    Risk Factors: Age
    Fever: Diagnosis and Treatment
    Viral Infections
    What Is Reye's Syndrome?Sidebar
    Chickenpox: Symptoms and Diagnosis

  • information resources on

  • R

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