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

Rabbit fever

Tularemia
Types of TularemiaSidebar

Rabeprazole

Drugs Used to Treat Peptic DisordersTables

Rabies

Rabies
Who Should Receive a Rabies Vaccine?Sidebar

  • immunization for

  • Protecting Adults Against Common Infectious DiseasesTables
    Vaccines for International Travel*†‡Tables

    Raccoon's eyes

    Skull Fracture: Symptoms

    Radial nerve

  • compression of (Radial tunnel syndrome)

  • Nerve Compression Syndromes: Radial Tunnel Syndrome

  • palsy of

  • Mononeuropathy: Radial Nerve Palsy

    Radial tunnel syndrome

    Nerve Compression Syndromes: Radial Tunnel Syndrome

    Radiation

    see also Radiation therapy

  • annual exposure to

  • Radiation Injury: Sources of Radiation Exposure
    Annual Radiation Exposure in the United StatesTables

  • in cancer development

  • Development and Spread: Promotion
    Risk Factors for Cancer: Environmental Factors

  • in children

  • Common Imaging Tests: During Early Childhood

  • contamination with

  • Radiation Injury: Contamination vs. Irradiation

  • injury from

  • Radiation Injury

  • in pregnancy

  • Common Imaging Tests: During Pregnancy

  • protection from

  • Radiation Injury: Prevention

  • risks of

  • Common Imaging Tests: Risks of Radiation

  • tests and

  • Comparing Radiation Doses For Different Tests* Tables

    Radiation accident

    Radiation Injury

    Radiation therapy

    Radiation Therapy
    Combination Therapy

  • for acromegaly

  • Acromegaly and Gigantism: Treatment

  • for brain tumor

  • Brain Tumors: Cancerous Brain Tumors
    Understanding Tumor TreatmentSidebar
    Radiation Damage

  • for breast cancer

  • Breast Cancer: Radiation Therapy
    Breast Cancer: Treatment of Cancer That Has Spread (Stage IV)

  • for cervical cancer

  • Cervical Cancer: Initial Spread Within the Pelvis

  • in childen

  • Childhood Cancers

  • dry mouth and

  • Salivary Gland Disorders: Salivary Gland Malfunction

  • for eye cancer

  • Retinoblastoma: Prognosis and Treatment

  • gastritis and

  • Gastritis: Causes
    Gastritis: Symptoms and Complications

  • for gynecologic cancer

  • Cancers of the Female Reproductive System: Treatment

  • hyperparathyroidism and

  • What Is Hyperparathyroidism?Sidebar

  • for lung cancer

  • Cancer of the Lungs: Radiation Therapy

  • for lymphoma

  • Hodgkin Lymphoma: Treatment and Prognosis

  • for multiple myeloma

  • Multiple Myeloma: Treatment and Prognosis

  • nervous system damage from

  • Radiation Damage

  • in oral cancer

  • Cancerous Growths: Prognosis and Treatment

  • for pituitary tumor

  • Hypopituitarism: Treatment

  • proctitis and

  • Proctitis

  • for prolactinoma

  • Galactorrhea: Treatment

  • for prostate cancer

  • Prostate Cancer: Radiation Therapy

  • for retinoblastoma

  • Retinoblastoma: Prognosis and Treatment

  • side effects of

  • Lymphedema
    Radiation Damage
    Salivary Gland Disorders: Salivary Gland Malfunction
    Gastritis: Causes
    Gastritis: Symptoms and Complications
    Childhood Cancers

  • swelling after

  • Lymphedema

  • for throat (laryngeal) cancer

  • Laryngeal Cancer: Treatment

  • for vaginal cancer

  • Vaginal Cancer: Treatment

    Radioactive iodine

  • in hyperthyroidism

  • Hyperthyroidism: Prognosis and Treatment
    Drugs Used to Treat HyperthyroidismTables

  • during pregnancy

  • Some Drugs That Can Cause Problems During PregnancyTables

    Radioallergosorbent test (RAST)

    Allergic Reactions: Diagnosis
    Food Allergy: Diagnosis

    Radiocontrast cystourethrography

    Urinary Tract Infection (UTI): Symptoms and Diagnosis

    Radiofrequency ablation

    Abnormal Heart Rhythms: Destroying Abnormal Tissue

  • in atrial fibrillation and atrial flutter

  • Atrial Fibrillation and Atrial Flutter: Destroying the Atrioventricular Node

  • in ventricular tachycardia

  • Ventricular Tachycardia: Treatment

  • in Wolff-Parkinson-White syndrome

  • Wolff-Parkinson-White (WPW) Syndrome: Treatment

    Radiology

    see also Computed tomography; Magnetic resonance imaging; Radionuclide imaging; Ultrasonography
    Plain X-Rays

  • in heart disease

  • Diagnosis: Radiologic Procedures

  • in lung disorders

  • Diagnosis: Chest Imaging

  • in musculoskeletal disorders

  • Diagnosis: X-rays

    Radionuclide imaging (scanning)

    Radionuclide Scanning
    Diagnostic Procedures Tables

  • of bile ducts

  • Imaging Tests

  • in bone infection (osteomyelitis)

  • Osteomyelitis: Diagnosis

  • in carcinoid tumors

  • Carcinoid Tumors: Diagnosis

  • in coronary artery disease

  • Angina: Diagnosis

  • of fractures

  • Fractures: Diagnosis

  • in heart disease

  • Diagnosis: Radionuclide Imaging
    Angina: Diagnosis

  • in kidney and urinary tract disorders

  • Diagnosis: Radionuclide Scanning

  • of liver

  • Imaging Tests

  • in lung disorders

  • Diagnosis: Chest Imaging

  • in musculoskeletal disorders

  • Diagnosis: Bone Scanning

    Radiopaque dyes

    Anaphylactoid Versus AnaphylacticSidebar
    Common Imaging Tests: Contrast Agents

  • x-rays and

  • Plain X-Rays: X-Rays With a Radiopaque Dye

    Radiosurgery, for brain tumor

    Understanding Tumor TreatmentSidebar

    Radon

    Risk Factors for Cancer: Environmental Factors

    Raloxifene

    Menopause: Selective Estrogen Receptor Modulators (SERMs)
    Some Drugs Used to Treat Symptoms and Effects of MenopauseTables

  • in breast cancer prevention

  • Breast Cancer: Prevention

  • in osteoporosis prevention

  • Osteoporosis: Drugs

    Raltegravir

    Drugs For HIV InfectionTables

    Ramelteon

    Ways to Improve SleepSidebar

    Range of motion

  • exercise for

  • Physical Therapy (PT): Range-of-Motion Exercises
    Increasing the Shoulder's Range of MotionFigures

    Ranitidine

    Peptic Ulcer: Acid-reducing Drugs
    Drugs Used to Treat Peptic DisordersTables

  • in elderly persons

  • Some Drugs Particularly Likely to Cause Problems in Older PeopleTables

    Rapamycins

    Drugs Used to Prevent Transplant RejectionTables

    Rape

    Rape

  • statutory

  • Paraphilias: Pedophilia

    Rapid antigen testing, in strep throat

    Pharyngitis (Sore Throat): Diagnosis and Treatment

    Rapid eye movement behavior disorder

    Parasomnias

    Rapid eye movement (REM) sleep

    Sleep Disorders
    Stages of the Sleep CycleFigures

    Rapidly progressive glomerulonephritis

    Glomerulonephritis (Nephritic Syndrome)
    Primary Glomerular Disorders That Can Cause Glomerulonephritis Tables

    Rapid plasma reagin (RPR) test

    Syphilis: Diagnosis

    Rare disorders, information resources on

    Ra - Re

    Rasagiline

    Parkinson's Disease: Other Drugs
    Drugs Used to Treat Parkinson's DiseaseTables

    Rash

    Itching and Noninfectious Rashes

  • in allergic reactions

  • Allergic Reactions: Symptoms

  • around mouth

  • Dermatitis: Perioral Dermatitis

  • in chickenpox

  • Chickenpox: Symptoms and Diagnosis

  • in childhood viral infections

  • Some Viral Infections At a GlanceTables

  • in chronic mucocutaneous candidiasis

  • Chronic Mucocutaneous Candidiasis

  • in dermatitis

  • Dermatitis: Symptoms and Diagnosis
    Dermatitis: Symptoms
    Dermatitis: Nummular Dermatitis

  • in dermatomyositis

  • Polymyositis and Dermatomyositis: Dermatomyositis

  • diaper

  • Rashes

  • drug-related

  • Drug Rashes

  • in enteroviral infection

  • Enteroviral Infections: Common in ChildhoodSidebar

  • in erythema infectiosum

  • Rashes
    Erythema Infectiosum

  • in erythema multiforme

  • Erythema Multiforme

  • in food allergy

  • Food Allergy: Symptoms

  • on glans penis (balanitis circinata)

  • Other Types of Inflammatory Arthritis: Symptoms

  • in glucagonoma

  • Pancreatic Endocrine Tumors: Symptoms and Diagnosis

  • in Hartnup disease

  • Hartnup Disease

  • in hot-tub folliculitis

  • Folliculitis and Skin Abscesses: Folliculitis

  • in infants and young children

  • Rashes

  • in juvenile idiopathic arthritis

  • Juvenile Idiopathic Arthritis (JIA): Symptoms and Complications

  • in Kawasaki disease

  • What Is Kawasaki Disease?Sidebar

  • in kidney failure

  • Acute Kidney Failure: Symptoms

  • in leprosy

  • Leprosy: Symptoms

  • in lichen planus

  • Lichen Planus

  • in Lyme disease

  • Lyme Disease: Early-Localized Stage

  • in measles

  • Measles: Symptoms and Diagnosis

  • in meningitis

  • Acute Bacterial Meningitis: Symptoms

  • in mite infestations

  • Tick and Mite Bites

  • in newborn

  • First Few Days: Skin

  • on palms and soles (keratoderma blennorrhagicum)

  • Other Types of Inflammatory Arthritis: Symptoms

  • in pellagra

  • Niacin: Symptoms

  • during pregnancy

  • Skin Rashes During PregnancySidebar

  • in prickly heat

  • Prickly Heat

  • purpuric

  • Henoch-Schönlein Purpura: Symptoms

  • in rheumatic fever

  • Rheumatic Fever: Skin

  • in Rocky Mountain spotted fever

  • Rocky Mountain Spotted Fever: Symptoms

  • in roseola

  • Rashes
    Roseola Infantum

  • in rubella

  • Rubella: Symptoms and Diagnosis

  • in scarlet fever

  • Pharyngitis (Sore Throat): Symptoms

  • in Stevens-Johnson syndrome

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

  • in syphilis

  • Syphilis: Secondary Stage

  • in systemic lupus erythematosus

  • Systemic Lupus Erythematosus (SLE): Skin and Mucous Membrane Problems

  • in toxic epidermal necrolysis

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

  • in viral infections

  • Some Viral Infections At a GlanceTables

    RAST (radioallergosorbent test)

    Allergic Reactions: Diagnosis
    Food Allergy: Diagnosis

    Rattlesnake bite

    Snake Bites

    Raynaud's syndrome

    Functional Peripheral Arterial Disease: Raynaud's Syndrome

  • in mixed connective tissue syndrome

  • Mixed Connective Tissue Disease (MCTD): Symptoms

  • in scleroderma

  • Systemic Sclerosis (Scleroderma): Symptoms

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