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

Anabolic steroids

see also Androgens
Other Drugs of AbuseSidebar

  • adolescent use of

  • Drug and Substance Use and Abuse

    Anaerobes

    Bacterial Infections
    What Are Clostridia?Sidebar

    Anaerobic

  • exrecise

  • Starting an Exercise Program: Strength Training

    Anaerobic exercise

    Choosing the Right Exercise: Strength Training

    Anaerobic infections

    see specific infections

    Anagrelide

  • in polycythemia vera

  • Polycythemia Vera: Prognosis and Treatment

  • in thrombocythemia

  • Thrombocythemia: Treatment

    Analgesics

    Treatment

  • adjuvant

  • Treatment: Adjuvant Analgesics

  • in common cold

  • Nonprescription Cold RemediesTables

  • in elderly persons

  • Some Drugs With Increased Risk for Older People Tables

  • in labor and delivery

  • Drug Use During Pregnancy: Drugs Used During Labor and Delivery
    Labor: Pain Relief

  • in migraine headache

  • Drugs Used to Treat MigrainesTables

  • nonopioid

  • Treatment: Nonopioid Analgesics
    How Nonsteroidal Anti-Inflammatory Drugs WorkSidebar

  • opioid

  • Treatment: Opioid Analgesics
    Opioid AnalgesicsTables

  • patient-controlled

  • Treatment: Administration
    Surgery: After Surgery

  • postoperative

  • Surgery: After Surgery

    Anaphylactic reactions

    Allergic Reactions: Symptoms and Diagnosis
    Anaphylactic Reactions

  • vs. anaphylactoid reactions

  • Anaphylactoid Versus AnaphylacticSidebar

  • exercise-induced

  • Exercise-Induced Allergic Reactions

  • in food allergy

  • Food Allergy: Symptoms

  • in selective IgA deficiency

  • Selective Antibody Deficiency

  • treatment of

  • Allergic Reactions: Emergency Treatment
    Anaphylactic Reactions: Prevention and Treatment

    Anaphylactoid reactions

    Anaphylactoid Versus AnaphylacticSidebar

  • in mastocytosis

  • Mastocytosis: Symptoms and Diagnosis

    Anastomosis, ileo-anal

    Ulcerative Colitis: Surgery

    Anastrozole

    Chemotherapy DrugsTables

    Anatomy

    Human Body
    Inside the TorsoFigures

  • adenoids

  • Locating the Tonsils and AdenoidsFigures

  • adrenal glands

  • Adrenal Gland Disorders
    A Close Look at the Adrenal GlandsFigures

  • anus

  • Digestive SystemFigures
    Rectum and Anus
    Anal and Rectal Disorders

  • aorta

  • Where Do Aortic Aneurysms Occur?Figures

  • appendix

  • Digestive SystemFigures
    Large Intestine

  • bile ducts

  • View of the Liver and GallbladderFigures
    Gallbladder and Biliary Tract

  • biliary tract

  • Digestive SystemFigures
    Gallbladder and Biliary Tract

  • bladder

  • Viewing the Urinary TractFigures
    Bladder

  • bones

  • Bones
    Musculoskeletal SystemFigures

  • brain

  • Brain
    Viewing the BrainFigures

  • breast

  • Inside the BreastFigures

  • bursas

  • Tendons and Bursas

  • digestive system

  • Biology of the Digestive System
    Digestive SystemFigures

  • disease and

  • Anatomy and Disease

  • duodenum

  • Small Intestine

  • ear

  • Ears
    A Look Inside the EarFigures

  • endocrine system

  • Endocrine Glands
    Major Endocrine GlandsFigures
    Major Hormones Tables

  • esophagus

  • Digestive SystemFigures
    Throat and Esophagus

  • eye

  • Structure and Function
    An Inside Look at the EyeFigures
    Structures That Protect the EyeFigures

  • gallbladder

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

  • heart

  • Heart
    A Look Into the HeartFigures
    Supplying the Heart With BloodFigures

  • electrical pathway and

  • Abnormal Heart Rhythms: Normal Electrical Pathway

  • ileum

  • Small Intestine

  • jejunum

  • Small Intestine

  • joints

  • Joints
    Inside the KneeFigures

  • kidney

  • Kidneys
    Viewing the Urinary TractFigures
    Kidney's Blood SupplyFigures

  • large intestine

  • Digestive SystemFigures
    Large Intestine

  • ligaments

  • Ligaments

  • liver

  • Digestive SystemFigures
    Liver
    View of the Liver and GallbladderFigures
    Liver

  • lung

  • Inside the Lungs and AirwaysFigures

  • lymphatic system

  • Lymphatic System: Helping Defend Against InfectionFigures

  • mouth

  • Biology of the Mouth
    A View of the MouthFigures

  • muscles

  • Muscles
    Musculoskeletal SystemFigures

  • nerve roots

  • How the Spine Is OrganizedFigures

  • nervous system

  • Biology of the Nervous System
    Viewing the BrainFigures
    How the Spine Is OrganizedFigures
    Typical Structure of a Nerve CellFigures

  • nose and sinuses

  • Nose and Sinuses
    A Look Inside the Nose and ThroatFigures
    Locating the SinusesFigures

  • optic nerve

  • Optic Nerve Disorders
    Tracing the Visual PathwaysFigures

  • pancreas

  • Digestive SystemFigures
    Pancreas
    Pancreatitis
    Locating the PancreasFigures
    View of the Liver and GallbladderFigures

  • pituitary gland

  • Pituitary Gland Disorders
    Pituitary: The Master GlandFigures

  • pleura

  • Pleural Disorders
    Two Views of the PleuraFigures

  • rectum

  • Digestive SystemFigures
    Rectum and Anus
    Anal and Rectal Disorders

  • reproductive system

  • female

  • External Genital Organs
    External Female Genital OrgansFigures
    Internal Female Genital OrgansFigures

  • male

  • Biology of the Male Reproductive System
    Male Reproductive OrgansFigures

  • retina

  • Retinal Disorders
    Viewing the RetinaFigures

  • salivary glands

  • Salivary Gland Disorders
    Locating the Major Salivary GlandsFigures

  • skin

  • Biology of the Skin
    Getting Under the SkinFigures

  • small intestine

  • Digestive SystemFigures
    Small Intestine

  • spinal cord

  • Spinal Cord
    How the Spine Is OrganizedFigures

  • spleen

  • Spleen Disorders
    Viewing the SpleenFigures

  • stomach

  • Digestive SystemFigures
    Stomach

  • temporomandibular joint

  • Temporomandibular Joint (TMJ) Disorders
    Locating the Temporomandibular JointFigures

  • tendons

  • Tendons and Bursas

  • throat

  • Digestive SystemFigures
    Throat and Esophagus
    Throat and Esophagus
    A Look Inside the Nose and ThroatFigures
    Throat

  • thyroid gland

  • Thyroid Gland Disorders
    Locating the Thyroid GlandFigures

  • tonsils

  • Locating the Tonsils and AdenoidsFigures

  • tooth

  • Biology of the Mouth

  • ureter

  • Viewing the Urinary TractFigures
    Ureters

  • urethra

  • Viewing the Urinary TractFigures
    Urethra

  • urinary tract

  • Biology of the Kidneys and Urinary Tract
    Viewing the Urinary TractFigures

    Ancylostoma duodenale infection (hookworm)

    Hookworm Infection
    Life Cycle of the HookwormFigures

    Ancylostomiasis

    Hookworm Infection
    Life Cycle of the HookwormFigures

    Andersen's disease

    Types and Characteristics of Glycogen Storage DiseasesTables

    Androgens

  • deficiency of, in children

  • Genital Defects: Male Genital Defects

  • excess of

  • Virilization

  • in female

  • Biology of the Female Reproductive System

  • in hair growth

  • Hair Disorders

    Anemia(s)

    Components of Blood: Red Blood Cells
    Symptoms
    Anemia

  • angina in

  • Angina: Causes

  • aplastic

  • Aplastic Anemia: When the Bone Marrow Shuts DownSidebar
    Neutropenia: Causes

  • autoimmune

  • Autoimmune Hemolytic Anemia
    Some Autoimmune Disorders Tables

  • with cancer treatment

  • Chemotherapy: Low Blood Cell Counts

  • causes of

  • Anemia: Causes
    The Major Causes of Anemia Tables
    Other Causes of Anemia Tables

  • in chronic disease

  • Anemia: Causes
    The Major Causes of Anemia Tables
    Anemia of Chronic Disease

  • in decreased red blood cell production

  • Anemia: Causes
    The Major Causes of Anemia Tables
    Iron Deficiency Anemia

  • drug-related

  • Some Serious Adverse Drug Reactions Tables

  • in excessive bleeding

  • The Major Causes of Anemia Tables
    Anemia From Excessive Bleeding

  • in fetus

  • Risk Factors That Develop During Pregnancy: Rh Incompatibility

  • in folic acid deficiency

  • Folate: Symptoms
    Vitamin Deficiency Anemia

  • in gastritis

  • Gastritis: Symptoms and Complications

  • heart failure with

  • Heart Failure: Systolic Dysfunction

  • in hemoglobin abnormalities

  • Sickle Cell Disease

  • hemolytic

  • Anemia: Causes
    The Major Causes of Anemia Tables
    Other Causes of Anemia Tables

  • autoimmune

  • Autoimmune Hemolytic Anemia
    Some Autoimmune Disorders Tables

  • in HIV infection

  • Human Immunodeficiency Virus (HIV) Infection: Symptoms

  • in Hodgkin's disease

  • Symptoms of Hodgkin's Disease Tables

  • in hookworm infection

  • Hookworm Infection: Symptoms and Diagnosis

  • in increased red blood cell destruction

  • The Major Causes of Anemia Tables
    Other Causes of Anemia Tables
    Autoimmune Hemolytic Anemia

  • in increased red blood cell production

  • Anemia: Causes

  • iron deficiency

  • Obstruction: Esophageal Webs
    Iron: Iron Deficiency
    Iron Deficiency Anemia

  • in kidney failure

  • Chronic Kidney Failure: Treatment

  • in leukemia

  • Chronic Lymphocytic Leukemia (CLL): Treatment

  • in macroglobulinemia

  • Macroglobulinemia: Symptoms and Complications

  • in multiple myeloma

  • Multiple Myeloma: Treatment and Prognosis

  • in myelofibrosis

  • Myelofibrosis: Symptoms, Complications, and Diagnosis

  • in newborn

  • Anemia
    What Is Hemolytic Disease of the Newborn?Sidebar

  • in non-Hodgkin's lymphoma

  • Non-Hodgkin's Lymphomas: Symptoms
    Symptoms of Non-Hodgkin's Lymphoma Tables

  • oral discoloration with

  • Color Changes in the MouthSidebar
    Tongue Disorders: Discoloration

  • in paroxysmal nocturnal hemoglobinuria

  • Other Causes of Anemia Tables

  • pernicious

  • Some Autoimmune Disorders Tables

  • during pregnancy

  • Physical Changes: Heart and Blood Flow
    Self-Care: Drugs and Dietary Supplements
    Risk Factors Present Before Pregnancy: Anemia
    Risk Factors That Develop During Pregnancy: Anemia

  • radiation injury and

  • Radiation Injury: Acute Radiation Illness

  • shortness of breath in

  • Symptoms: Anemia

  • in sickle cell disease

  • Sickle Cell Disease
    Red Blood Cell ShapesFigures

  • spleen enlargement and

  • Other Causes of Anemia Tables

  • in stomach cancer

  • Stomach Cancer: Symptoms

  • in thalassemia

  • Thalassemias

  • in vitamin B12 deficiency

  • Vitamin B12: Vitamin B12 Deficiency
    Vitamin Deficiency Anemia

    Anencephaly

    Prenatal Diagnostic Testing: Neural Tube Defects
    Interpreting Abnormal Alpha-Fetoprotein LevelsSidebar
    Brain and Spinal Cord Defects: Neural Tube Defects

    Anesthesia

    Administration: Inhalation
    Surgery: Anesthesia

  • muscle sensitivity to

  • Genetic Makeup

    Anesthetics

  • in labor and delivery

  • Drug Use During Pregnancy: Drugs Used During Labor and Delivery
    Labor: Pain Relief

  • local

  • Treatment: Anesthetics

  • for mouth sores

  • Mouth Sores: Treatment

  • topical

  • Treatment: Anesthetics

    Aneurysm

  • aortic

  • Aneurysms
    Where Do Aortic Aneurysms Occur?Figures

  • in Marfan syndrome

  • Marfan Syndrome

  • screening for

  • Selected Screening Schedule for AdultsTables

  • in syphilis

  • Syphilis: Symptoms

  • cerebral artery

  • Aneurysms: Aneurysms in Other Arteries

  • coma with

  • Some Causes of Stupor and Coma Tables

  • in polycystic kidney disease

  • Polycystic Kidney Disease (PKD): Symptoms and Complications

  • rupture of

  • Hemorrhagic Stroke: Causes

  • treatment of

  • Hemorrhagic Stroke: Treatment

  • coronary artery, in Kawasaki disease

  • What Is Kawasaki Disease?Sidebar

  • dissecting

  • Aortic Dissection
    Understanding Aortic DissectionFigures

  • femoral artery

  • Aneurysms: Aneurysms in Other Arteries

  • of heart

  • Complications of a Heart AttackSidebar

  • popliteal artery

  • Aneurysms: Aneurysms in Other Arteries

    Angel dust (phencyclidine)

    Phencyclidine (PCP)

    Angina

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

  • sexual activity and

  • Sexual Activity and Heart DiseaseSidebar

  • travel and

  • Specific Medical Conditions and Travel: Heart Disease

    Angina decubitus

    Angina: Classification

    Angioedema

    Allergic Reactions: Symptoms and Diagnosis
    Physical Allergy
    Hives and Angioedema

  • hereditary

  • Lip Disorders: Swelling
    Hereditary Angioedema: Not an AllergySidebar

    Angiography (arteriography)

    Diagnosis: Cardiac Catheterization
    Diagnostic Procedures Tables

  • cerebral (brain)

  • How Imaging Tests Help in Diagnosing Nervous System DisordersTables
    Ischemic Stroke: Diagnosis
    Hemorrhagic Stroke: Diagnosis

  • computed tomography

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

  • coronary (heart)

  • Diagnosis: Coronary Angiography
    Angina: Diagnosis

  • digital substraction

  • Diagnosis: Angiography of Peripheral Blood Vessels

  • intestinal

  • Small Intestine Cancer: Symptoms and Diagnosis

  • magnetic resonance

  • Diagnosis: Magnetic Resonance Imaging

  • peripheral artery

  • Diagnosis: Angiography of Peripheral Blood Vessels
    Occlusive Peripheral Arterial Disease: Diagnosis

  • pulmonary (lung)

  • Diagnosis: Chest Imaging
    Pulmonary Embolism (PE): Diagnosis