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  • Disorders of Nutrition
  • Drugs
  • Ear, Nose, and Throat Disorders
  • Eye Disorders
  • Fundamentals
  • Heart and Blood Vessel Disorders
  • Hormonal and Metabolic Disorders
  • Immune Disorders
  • Infections
  • Injuries and Poisoning
  • Kidney and Urinary Tract Disorders
  • Liver and Gallbladder Disorders
  • Lung and Airway Disorders
  • Men's Health Issues
  • Mental Health Disorders
  • Mouth and Dental Disorders
  • Older People's Health Issues
  • Skin Disorders
  • Special Subjects
  • Women's Health Issues
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  • Emergencies
  • Cardiac Arrest
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  • Altitude Illness
  • Bee Stings
  • Bites, Animal
  • Bites, Human
  • Bites, Snake
  • Burns
  • Electrical Injuries
  • Eye, Blunt Injury to
  • Eye, Chemical Burns of
  • Fractures
  • Frostbite
  • Head Injury
  • Heatstroke
  • Hypoithermia
  • Lightning Injuries
  • Shock
  • Sprains and Strains
  • Wounds
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Index
rarerhrirnrorpru
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Ra

Rabbit fever

Tularemia
Types of TularemiaSidebar

Rabeprazole

Drugs Used to Treat Peptic DisordersTables

Rabies

Rabies
Who Should Receive the Rabies Vaccine?Sidebar

  • immunization for

  • Protecting Adults Through VaccinesTables
    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 of Cancer: 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 Cancer 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

  • cystitis and

  • Urination, Excessive or Frequent: What the doctor doesTables

  • dry mouth and

  • Dry Mouth: Causes
    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

  • Lung Cancer: 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 Mouth Growths: 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

  • Radiation Damage
    Gastritis: Causes
    Gastritis: Symptoms and Complications
    Salivary Gland Disorders: Salivary gland malfunction
    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 Pregnancy*Tables

    Radioallergosorbent test (RAST)

    Allergic Reactions and Other Hypersensitivity Disorders: Diagnosis
    Food Allergy: Diagnosis

    Radiocontrast cystourethrography

    Urinary Tract Infection in Children(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 snoring

  • Snoring: Surgery

  • in ventricular tachycardia

  • Ventricular Tachycardia: Long-term 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

  • Other Tests for Heart and Blood Vessel Disorders: Radiologic Procedures

  • in lung disorders

  • Tests for Lung Disorders: Chest Imaging

  • in musculoskeletal disorders

  • Tests for Musculoskeletal Disorders: X-Rays

    Radionuclide imaging (scanning)

    Radionuclide Scanning
    Diagnostic ProceduresTables

  • of bile ducts

  • Diagnosis of Liver, Gallbladder, and Biliary Disorders: Imaging Tests

  • in bone infection (osteomyelitis)

  • Bone and Joint Infections: Diagnosis

  • in carcinoid tumors

  • Carcinoid Tumors: Diagnosis

  • in coronary artery disease

  • Angina: Diagnosis

  • of fractures

  • Fractures: Diagnosis

  • in heart disease

  • Other Tests for Heart and Blood Vessel Disorders: Radionuclide Imaging
    Angina: Diagnosis

  • in kidney and urinary tract disorders

  • Diagnosis of Kidney and Urinary Tract Disorders: Radionuclide Scanning (see )

  • of liver

  • Diagnosis of Liver, Gallbladder, and Biliary Disorders: Imaging Tests

  • in lung disorders

  • Tests for Lung Disorders: Chest Imaging

  • in musculoskeletal disorders

  • Tests for Musculoskeletal Disorders: 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

    Prescription Sleep Aids: Not to Be Taken LightlySidebar

    Ramsay Hunt syndrome

    Herpes Zoster Oticus

    Range of motion

  • exercise for

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

    Ranibizumab

  • macular degeneration and

  • Age-Related Macular Degeneration : Drug treatments and laser procedures

    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

    Sore Throat: Testing

    Rapid eye movement behavior disorder

    Parasomnias: Rapid eye movement behavior disorder

    Rapid eye movement (REM) sleep

    Sleep Disorders: The sleep cycle
    Stages of the Sleep CycleFigures

    Rapidly progressive glomerulonephritis

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

    Rapid plasma reagin (RPR) test

    Syphilis: Diagnosis

    Rasagiline

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

    Rash

    Itching and Noninfectious Rashes

  • in allergic reactions

  • Allergic Reactions and Other Hypersensitivity Disorders: 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 in Children

  • drug-related

  • Drug Rashes

  • in enteroviral infection

  • Enteroviral Infections: Common in ChildhoodSidebar

  • in erythema infectiosum

  • Rashes in Children
    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 Children

  • in juvenile idiopathic arthritis

  • Juvenile Idiopathic Arthritis (JIA): Symptoms

  • in Kawasaki disease

  • Kawasaki Disease: Symptoms

  • 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 mite infestations

  • Tick and Mite Bites

  • in newborn

  • First Few Days After Birth: Skin

  • on palms and soles (keratoderma blennorrhagicum)

  • Other Types of Inflammatory Arthritis: Symptoms

  • in pellagra

  • Niacin: Symptoms

  • during pregnancy

  • Rashes During PregnancySidebar

  • in prickly heat

  • Prickly Heat

  • purpuric

  • Immunoglobulin A–Associated Vasculitis: Symptoms

  • in rheumatic fever

  • Rheumatic Fever: Skin

  • in Rocky Mountain spotted fever

  • Rocky Mountain Spotted Fever: Symptoms

  • in roseola

  • Rashes in Children
    Roseola Infantum

  • in rubella

  • Rubella: Symptoms and Diagnosis

  • 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 and Other Hypersensitivity Disorders: 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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