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  • Cardiovascular Disorders
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  • Dental Disorders
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  • Endocrine and Metabolic Disorders
  • Eye Disorders
  • Gastrointestinal Disorders
  • Genitourinary Disorders
  • Geriatrics
  • Gynecology and Obstetrics
  • Hematology and Oncology
  • Hepatic and Biliary Disorders
  • Immunology; Allergic Disorders
  • Infectious Diseases
  • Injuries; Poisoning
  • Musculoskeletal and Connective Tissue Disorders
  • Neurologic Disorders
  • Nutritional Disorders
  • Pediatrics
  • Psychiatric Disorders
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  • Special Subjects
ABCDEFGHI
JKLMNOPQR
STUVWXYZ
  • Abdominal Pain, Acute
  • Abdominal pain, Chronic
  • Alopecia
  • Amenorrhea
  • Amnesia
  • Anosmia
  • Bleeding, Excessive
  • Breast Lumps
  • Chest Pain
  • Constipation in Adults
  • Constipation in Children
  • Cough in Adults
  • Cough in Children
  • Crying
  • Diarrhea in Adults
  • Diarrhea in Children
  • Diplopia
  • Dizziness
  • Dry Mouth
  • Dysmenorrhea
  • Dyspepsia
  • Dysphagia
  • Dyspnea
  • Dysuria
  • Earache
  • Ear Discharge
  • Edema
  • Edema During Late Pregnancy
  • Epistaxis
  • Erectile dysfunction
  • Eyelid Swelling
  • Eye Pain
  • Fever
  • Fever, Acute, in Adults
  • Fever, Chronic (FUO)
  • Fever in Infants and Children
  • Floaters
  • Gas
  • Gastrointestinal Bleeding
  • Halitosis
  • Headache
  • Hearing Loss
  • Hearing Loss: Sudden Deafness
  • Hematospermia
  • Hematuria
  • Hemoptysis
  • Hiccups
  • Hirsutism
  • Insomnia and Excessive Daytime Sleepiness
  • Itching
  • Itching, Anal
  • Jaundice in Adults
  • Jaundice in Neonates
  • Joint Pain, Monarticular
  • Joint Pain, Polyarticular
  • Knee pain
  • Lump in Throat
  • Nasal Congestion and Rhinorrhea
  • Nausea and Vomiting During Early pPregnancy
  • Nausea and Vomiting in Adults
  • Nausea and Vomiting in Infants and Children
  • Neck and Back Pain
  • Neck Mass
  • Nipple Discharge
  • Orthostatis Hypotension
  • Pain
  • Pain, Chronic
  • Palpitations
  • Pelvic Pain
  • Pelvic Pain During Early Pregnancy
  • Polyuria
  • Priapism
  • Red Eye
  • Scrotal Pain
  • Sore Throat
  • Stomatitis
  • Stridor
  • Syncope
  • Tearing
  • Tinnitus
  • Toothache
  • Tremor
  • Urinary Frequency
  • Urinary Incontinence in Adults
  • Urinary Incontinence in Children
  • Urinary Retention
  • Urticaria
  • Vaginal Bleeding
  • Vaginal Bleeding During Early Pregnancy
  • Vaginal Bleeding During Late Pregnancy
  • Vaginal Itching and Discharge
  • Vision, Blurred
  • Vision Loss, Acute
  • Weakness, Generalized
  • Wheezing
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Index
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Ra

Rabbit fever

Tularemia
Types of Tularemia*Tables

Rabeprazole

Some Oral Drugs for DyspepsiaTables
Drug Treatment of Gastric Acidity: Proton pump inhibitors
Proton Pump InhibitorsTables

Rabies

Some Neurologic VirusesTables
Rabies
Rabies Postexposure ProphylaxisTables

  • immunization for

  • Vaccines for International Travel*,† Tables

  • vaccine against

  • Vaccines Available in the USTables
    Rabies Postexposure ProphylaxisTables
    Rabies: Postexposure

    Rabies immune globulin

    Immune Globulins and Antitoxins* Available in the USTables
    Rabies: Postexposure

    Raccoon eyes

    Traumatic Brain Injury (TBI): Symptoms and Signs

    Radial brachialis reflex

    Approach to the Neurologic Patient: Reflexes

    Radial head

  • fracture of

  • Fractures: Radial head fractures

  • subluxation of

  • Dislocations: Radial head subluxations (nursemaid's elbow)

    Radial keratotomy

    Refractive Surgery: Radial and Astigmatic Keratotomy

    Radial nerve compression

    Peripheral Neuropathy: Symptoms and Signs

    Radiation

    see also Radiation therapy
    Radiation Exposure and Contamination
    Effects of Whole-Body Irradiation From External Radiation or Internal AbsorptionTables

  • burns from

  • Burns: Etiology

  • cancer and

  • Cellular and Molecular Basis of Cancer: Radiation
    Principles of Radiologic Imaging: Risks of Ionizing Radiation

  • in cancer development

  • Cellular and Molecular Basis of Cancer: Radiation

  • contamination with

  • Radiation Exposure and Contamination: Contamination

  • doses of

  • Typical Radiation DosesTables

  • from computed tomography

  • Computed Tomography: Disadvantages

  • injury from

  • Radiation Exposure and Contamination: Pathophysiology
    Effects of Whole-Body Irradiation From External Radiation or Internal AbsorptionTables
    Focal Radiation Injury*Tables
    Relationship Between Absolute Lymphocyte Count in the Adult at 48 h, Radiation Dose,* and PrognosisTables
    Principles of Radiologic Imaging: Risks of Ionizing Radiation

  • ionizing

  • Principles of Radiologic Imaging: Risks of Ionizing Radiation

  • LD50 of

  • Radiation Exposure and Contamination: Prognosis

  • measurement of

  • Radiation Exposure and Contamination: Measurement of radiation
    Principles of Radiologic Imaging: Risks of Ionizing Radiation

  • in pregnancy

  • Principles of Radiologic Imaging: Radiation during pregnancy

  • protection from

  • Radiation Exposure and Contamination: Prevention

  • sources of

  • Radiation Exposure and Contamination: Sources of exposure
    Average Annual Radiation Exposure in the USTables

    Radiation therapy

    5-Yr Disease-Free Survival Rates by Cancer TherapyTables
    Modalities of Cancer Therapy: Radiation Therapy

  • complications of

  • Modalities of Cancer Therapy: Adverse effects

  • diarrhea with

  • Management of Adverse Effects of Cancer Therapy: Gastrointestinal Effects

  • dry mouth and

  • Xerostomia : Radiation

  • gastritis and

  • Gastritis: Gastritis caused by physical agents

  • growth and

  • Hypopituitarism in Children Resulting in Short Stature

  • hypothyroidism and

  • Hypothyroidism: Primary hypothyroidism

  • mucositis with

  • Management of Adverse Effects of Cancer Therapy: Gastrointestinal Effects

  • neoadjuvant

  • Modalities of Cancer Therapy: Neoadjuvant therapy

  • neurotoxicity of

  • Intracranial and Spinal Tumors: Cranial Radiation Therapy and Neurotoxicity

  • pneumonitis after

  • Lung Carcinoma: Treatment

  • proctitis and

  • Proctitis: Treatment

  • stereotactic

  • Modalities of Cancer Therapy: Types of radiation therapy

  • thyroid carcinoma after

  • Thyroid Cancers: Radiation-Induced Thyroid Cancer

  • in transplantation

  • Transplantation: Irradiation

  • types of

  • Modalities of Cancer Therapy: Types of radiation therapy

  • xerostomia and

  • Xerostomia : Radiation

    Radiculopathy

    Causes of Peripheral Nervous System DisordersTables
    Clinical Clues to Causes of Peripheral Nervous System* DisordersTables
    Nerve Root Disorders
    Symptoms of Common Radiculopathies by Cord LevelTables

  • cervical

  • Cervical Spondylosis and Spondylotic Cervical Myelopathy

  • diabetic

  • Diabetes Mellitus and Disorders of Carbohydrate Metabolism: Diabetic neuropathy

  • limb pain in

  • Limb Pain: EtiologyTables

  • numbness and

  • Some Causes of NumbnessTables

    Radioallergosorbent testing

    Asthma and Related Disorders: Other tests
    Allergic, Autoimmune, and Other Hypersensitivity Disorders: Specific tests
    Food Allergy: Diagnosis

    Radiofrequency ablation

    Arrhythmias and Conduction Disorders: Radiofrequency (RF) ablation

  • in atrial fibrillation

  • Atrial Fibrillation (AF): Ablation procedures

  • in lung cancer

  • Lung Carcinoma: Treatment

  • in snoring

  • Snoring: Surgery

  • in ventricular tachycardia

  • Ventricular Tachycardia (VT): Long-term

    Radiography

    Radiography

  • chest

  • Diagnostic Pulmonary Procedures: Chest x-ray
    Cardiac Imaging Tests: Chest x-rays

  • dental

  • Evaluation of the Dental Patient: Testing

  • during pregnancy

  • Approach to the Pregnant Woman and Prenatal Care: Other imaging

  • of gastrointestinal tract

  • X-ray and Other Imaging Contrast Studies

  • in genitourinary tract disorders

  • Genitourinary Tests and Procedures: Plain X-Rays Without Contrast
    Genitourinary Tests and Procedures: X-Rays With Use of Contrast

  • in joint evaluation

  • Approach to the Patient With Joint Disease: Imaging studies

    Radioiodine

  • environmental exposure to

  • Radiation Exposure and Contamination: Prevention

  • in hyperthyroidism

  • Hyperthyroidism: Radioactive sodium iodine (131I, radioiodine)

  • thyroid uptake of

  • Results of Thyroid Function Tests in Various Clinical SituationsTables
    Thyroid Disorders: Laboratory Testing of Thyroid Function
    Hyperthyroidism: Diagnosis

    Radioisotopes

  • cancer therapy with

  • Modalities of Cancer Therapy: Types of radiation therapy

    Radionuclide imaging

    Radionuclide Scanning

  • in cardiovascular disorders

  • Radionuclide Imaging
    Technetium-99m Myocardial Perfusion MarkersTables

  • of gastrointestinal tract

  • Nuclear Scans

  • of genitourinary tract

  • Genitourinary Tests and Procedures: Radionuclide Scanning

  • of kidney

  • Genitourinary Tests and Procedures: Radionuclide Scanning

  • of liver

  • Imaging Tests of the Liver and Gallbladder: Radionuclide liver scanning

  • in pulmonary disorders

  • Diagnostic Pulmonary Procedures: Nuclear Scanning

  • stress testing with

  • Stress Testing: Diagnostic Methodology

  • of thyroid gland

  • Results of Thyroid Function Tests in Various Clinical SituationsTables
    Thyroid Disorders: Laboratory Testing of Thyroid Function
    Hyperthyroidism: Diagnosis

    Radius

  • fracture of

  • Fractures: Distal radial fractures

    Radon

    Lung Carcinoma: Prevention
    Cellular and Molecular Basis of Cancer: Radiation

    Rales

    Approach to the Pulmonary Patient: Auscultation

    Raloxifene

    Osteoporosis: Preserving bone mass

  • in breast cancer prevention

  • Breast Cancer: Prevention

    Raltegravir

    Antiretroviral Drugs Tables

  • in children

  • Dosage and Administration of Antiretroviral Drugs for Childrena Tables

    Rambam-Hasharon syndrome

    Lysosomal Storage DisordersTables

    Ramelteon

    Oral Hypnotics in Common UseTables

    Ramipril

    Oral ACE Inhibitors and Angiotensin II Receptor Blockers for HypertensionTables
    Peripheral Arterial Disease: Treatment

    Ramsay Hunt syndrome

    Some Causes of Dizziness and VertigoTables
    Herpes Zoster Oticus
    Herpes Zoster: Symptoms and Signs

    Range of motion

    Approach to the Patient With Joint Disease: Physical Examination
    Physical Therapy (PT): Range of motion
    Normal Values for Range of Motion of Joints*Tables

    Ranibizumab

    Retinal Disorders: Wet AMD
    Central and Branch Retinal Vein Occlusion: Treatment

    Ranitidine

    Some Oral Drugs for DyspepsiaTables
    Drug Treatment of Gastric Acidity: H2 blockers

  • in elderly

  • Effect of Aging on Drug Metabolism* and EliminationTables

  • poisoning with

  • Symptoms and Treatment of Specific Poisons Tables

    Ranson's prognostic signs

    Acute Pancreatitis: Prognosis

    Ranula

    Some Disorders of the Oral Region by Predominant Site of InvolvementTables

    Rapamycins

    Transplantation: Rapamycins
    Transplantation: Future therapiesTables

    Rape

    Medical Examination of the Rape Victim
    Typical Examination for Alleged RapeTables

    Rapidly progressive glomerulonephritis

    Rapidly Progressive Glomerulonephritis (RPGN)
    Classification of Rapidly Progressive Glomerulonephritis Based on Immunofluorescence MicroscopyTables

    Rapid plasma reagin (RPR) test

    Syphilis: Diagnosis
    Congenital Syphilis: Early congenital syphilis

    Rapid shallow breathing (RSB) index

    Liberation from Mechanical Ventilation

    Rapid urease test

    Helicobacter pylori Infection : Invasive tests

    Rasagiline

    Parkinson Disease: Selective MAO-B inhibitors
    Some Commonly Used Oral Antiparkinsonian DrugsTables

    Rasburicase

    Metabolic Nephropathies: Acute urate nephropathy

  • in tumor lysis syndrome

  • Management of Adverse Effects of Cancer Therapy: Tumor Lysis Syndrome

    ras gene

    Cellular and Molecular Basis of Cancer: Oncogenes

    Rash

    see also Skin
    Description of Skin Lesions

  • anticonvulsant-related

  • Seizure Disorders: Adverse drug effects

  • butterfly

  • Systemic Lupus Erythematosus (SLE): Skin and mucous membrane manifestations ()

  • in chickenpox

  • Chickenpox: Symptoms and Signs

  • in congenital syphilis

  • Congenital Syphilis: Symptoms and Signs

  • in enterovirus infection

  • Syndromes Caused by EnterovirusesTables
    Enteroviruses: Rashes

  • in erysipelothricosis

  • Erysipelothricosis: Symptoms and Signs

  • in erythema infectiosum

  • Erythema Infectiosum: Symptoms and Signs

  • fever and

  • Fever: Interpretation of findings

  • gemifloxacin-induced

  • Fluoroquinolones: Adverse Effects

  • heliotropic

  • Polymyositis and Dermatomyositis: Symptoms and Signs
    Description of Skin Lesions: Color

  • in herpes gestationis

  • Pemphigoid Gestationis: Symptoms and Signs

  • in Kawasaki disease

  • Kawasaki Disease (KD): Symptoms and Signs

  • in leprosy

  • Leprosy: Symptoms and Signs

  • in Lyme disease

  • Lyme Disease: Early localized

  • in measles

  • Other Viruses: Symptoms and Signs

  • in neonate

  • Approach to the Care of Normal Infants and Children: Skin

  • penicillin-induced

  • β-Lactams: Rashes

  • in rickettsialpox

  • Rickettsiae and Related Organisms: Differentiating among rickettsial diseases

  • in rickettsioses

  • Diseases Caused by Rickettsia, Orientia, Ehrlichia, Anaplasma, and Coxiella Spp Tables

  • in Rocky Mountain spotted fever

  • Rickettsiae and Related Organisms: Differentiating among rickettsial diseases
    Rocky Mountain Spotted Fever (RMSF): Symptoms and Signs

  • in roseola infantum

  • Other Viruses: Diagnosis

  • in rubella

  • Rubella: Symptoms and Signs

  • in scarlet fever

  • Streptococcal Infections: Diseases Caused by Streptococci

  • seabather's

  • Marine Bites and Stings: Seabather's eruption

  • in smallpox

  • Smallpox: Symptoms and Signs

  • in toxic shock syndrome

  • Toxic Shock Syndrome (TSS): Symptoms and Signs

  • in typhus

  • Diseases Caused by Rickettsia, Orientia, Ehrlichia, Anaplasma, and Coxiella Spp Tables
    Rickettsiae and Related Organisms: Differentiating among rickettsial diseases

  • varicella vaccination and

  • Routine Vaccinations: Adverse effects

  • viral infection and

  • Some Exanthematous VirusesTables

    Rashkind's procedure

    Transposition of the Great Arteries: Treatment
    Tricuspid Atresia: Treatment

    Rasmussen's encephalitis

    Examples of Disorders Associated With Defects in NeurotransmissionTables

    Rat-bite fever

    Rat-Bite Fever

    Rat-flea typhus

    Diseases Caused by Rickettsia, Orientia, Ehrlichia, Anaplasma, and Coxiella Spp Tables
    Murine (Endemic) Typhus

    Rat poison

    Symptoms and Treatment of Specific Poisons Tables

    Rattlesnake bite

    Snakebites: Pit vipers
    Severity of Pit Viper EnvenomationTables

    Rauwolfia alkaloids

    Adrenergic Modifiers for HypertensionTables

    Raxibacumab

  • in anthrax

  • Gram-Positive Bacilli: Treatment

    Raynaud's disease

    Raynaud's Syndrome
    Causes of Secondary Raynaud's SyndromeTables

    Raynaud's phenomenon

    Raynaud's Syndrome
    Causes of Secondary Raynaud's SyndromeTables

    Raynaud's syndrome

    Causes of Secondary Raynaud's SyndromeTables

  • pernio and

  • Nonfreezing Tissue Injuries: Chilblains (pernio)

  • in systemic sclerosis

  • Systemic Sclerosis: Symptoms and Signs

    Raynaud syndrome

    Foot Manifestations of Systemic DisordersTables

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