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

PACE (Program of All-Inclusive Care for the Elderly)

Care in the Home: PACE Program
Medicare: PACE Program

Pacemaker

  • artificial

  • Abnormal Heart Rhythms: Pacemakers
    Keeping the Beat: Artificial PacemakersFigures
    Heart Block: Treatment

  • travel and

  • Specific Medical Conditions and Travel: Heart Disease

  • escape

  • Pacemaker Dysfunction

  • natural

  • Heart: Regulation of the Heart
    Abnormal Heart Rhythms

  • dysfunction of

  • Pacemaker Dysfunction

    Pachymetry

    Diagnosis: Pachymetry

    Paclitaxel

    Chemotherapy DrugsTables

    Paget's disease

  • of bone

  • Paget's Disease of Bone

  • hypercalcemia and

  • Calcium: Causes

  • information resources on

  • P

  • of nipple

  • Breast Cancer: Types
    Breast Cancer: Treatment of Specific Types of Breast Cancer

  • of penis

  • Growths on the Penis

  • of skin

  • Paget's Disease of the Nipple

    Pain

    Pain
    What Is Referred Pain?Figures
    Opioid AnalgesicsTables
    How Nonsteroidal Anti-Inflammatory Drugs WorkSidebar

  • abdominal

  • see also Abdomen, pain in
    Symptoms: Abdominal Pain
    Abdominal Pain in Newborns, Infants, and Young ChildrenTables
    Causes of Abdominal Pain by LocationFigures
    Diagnosis: Medical History and Physical Examination

  • aging and

  • Spotlight on AgingSidebar

  • in ankylosing spondylitis

  • Other Types of Inflammatory Arthritis: Symptoms

  • in aortic dissection

  • Aortic Dissection: Symptoms

  • in appendicitis

  • Appendicitis: Symptoms and Diagnosis

  • arm

  • Symptoms: Pain in the Limbs

  • arm, in thoracic outlet syndrome

  • Thoracic Outlet Syndromes

  • in atherosclerosis

  • Atherosclerosis: Symptoms

  • back

  • see Back pain
    Low Back Pain
    A Herniated DiskFigures

  • bone

  • Symptoms: Causes

  • with fracture

  • Fractures: Symptoms

  • breakthrough

  • Pain: Acute Versus Chronic Pain

  • breast

  • Breast Disorders: Breast Pain

  • in cancer

  • Symptoms: Pain

  • chest

  • see Chest, pain in

  • in chondromalacia patellae

  • Chondromalacia Patellae

  • in dying person

  • Symptoms During a Fatal Illness: Pain

  • ear

  • When the Ear AchesSidebar

  • in erythromelalgia

  • Functional Peripheral Arterial Disease: Erythromelalgia

  • evaluation of

  • Evaluation

  • eye

  • Symptoms: Eye Pain

  • face

  • in Bell's palsy

  • Bell's Palsy

  • in trigeminal neuralgia

  • Trigeminal Neuralgia
    Taking the Pressure Off a NerveFigures

  • in fibromyalgia

  • Fibromyalgia: Symptoms

  • gallbladder

  • Gallbladder and Biliary Tract
    Cholecystitis: Symptoms

  • in headache

  • Headaches
    How Headaches Differ Tables
    Drugs Used to Treat MigrainesTables

  • in heart disease

  • Symptoms: Chest Pain

  • heel

  • Plantar Fasciosis
    What Is a Heel Spur?Figures

  • hip

  • in slipped capital femoral epiphysis

  • Slipped Capital Femoral Epiphysis (SCFE)

  • joint

  • Symptoms: Causes

  • in rheumatic fever

  • Rheumatic Fever: Joints

  • in rubella

  • Rubella: Symptoms and Diagnosis

  • in kidney disorders

  • Symptoms: Flank pain
    Hydronephrosis: Symptoms
    Stones in the Urinary Tract: Symptoms

  • knee

  • Knee Injuries: Pain in the Front of the Knee
    When the Front of the Knee HurtsFigures

  • during labor and delivery

  • Labor: Pain Relief

  • leg

  • Symptoms: Pain in the Limbs

  • in thromboangiitis obliterans

  • Occlusive Peripheral Arterial Disease: Symptoms

  • when walking

  • Occlusive Peripheral Arterial Disease: Arteries of the Legs and Arms
    Occlusive Peripheral Arterial Disease: Arteries of the Legs and Arms

  • limb

  • Symptoms: Pain in the Limbs

  • muscle

  • Symptoms: Causes

  • neck

  • Neck Pain
    Disorders That Cause Only Neck PainTables

  • nerve

  • see Neuralgia

  • neuropathic

  • Types: Neuropathic Pain

  • nociceptive

  • Types: Nociceptive Pain

  • at ovulation (mittleschmerz)

  • Menstrual Cycle: Ovulatory Phase

  • pelvic

  • Symptoms: Pelvic Pain
    What Causes Pelvic Pain?Sidebar

  • in endometriosis

  • Endometriosis: Symptoms

  • during menstrual period

  • Dysmenorrhea

  • in pelvic congestion syndrome

  • What Is Pelvic Congestion Syndrome?Sidebar

  • in pericarditis

  • Symptoms: Causes

  • phantom limb

  • Specific Problems: Pain
    Types: Phantom Limb Pain
    Pain

  • pleuritic

  • Symptoms: Causes
    Pleural Effusion: Symptoms
    Viral Pleuritis

  • postherpetic

  • What Is Postherpetic Neuralgia?Sidebar

  • postoperative

  • Surgery: Hospitalization

  • psychogenic

  • Types: Psychogenic Pain

  • referred

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

  • sciatic

  • What Is Sciatica?Figures

  • during sexual intercourse

  • Dyspareunia

  • in shingles

  • Types: Postherpetic Neuralgia

  • shoulder, in thoracic outlet syndrome

  • Thoracic Outlet Syndromes

  • in thoracic aortic aneurysm

  • Aneurysms: Symptoms

  • throat, in glossopharyngeal neuralgia

  • Glossopharyngeal Neuralgia

  • tooth

  • Tooth Disorders: Symptoms of Tooth Disorders
    Cavities: Symptoms
    Pulpitis: Symptoms and Diagnosis
    Toothaches

  • treatment of

  • Treatment of Pain and Inflammation
    Treatment

  • heat therapy and

  • Treatment of Pain and Inflammation: Heat Therapy
    Types of Heat TherapyTables

  • massage and

  • Treatment of Pain and Inflammation: Massage
    Some Uses for Massage Tables

  • nondrug

  • Treatment: Nondrug Pain Treatments

  • nonopioid

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

  • opioid

  • Treatment: Opioid Analgesics
    Opioid AnalgesicsTables

  • during urination

  • Symptoms: Burning or Pain with Urination
    Common Causes of DysuriaTables
    Bladder Infection (Cystitis): Symptoms

    Pain referred

    Low Back Pain: Causes

    Pain relievers

    see Analgesics

    Paint thinner, poisoning from

    Hydrocarbon Poisoning

    Palate

    Biology of the Mouth
    A View of the MouthFigures

  • cleft

  • Bone and Muscle Defects: Facial Defects
    Cleft Lip and Cleft Palate: Defects of the FaceFigures

  • necrotizing sialometaplasia of

  • Mouth Sores: Other causes

  • torus of

  • Noncancerous Growths

    Paliperidone

    Antipsychotic DrugsTables

    Palivizumab

    Respiratory Tract Infections: Prevention and Treatment

    Palliative care

    Medical Terms Related to Life-Sustaining TreatmentSidebar

    Palpitations

    see also Arrhythmias
    Symptoms: Palpitations
    Abnormal Heart Rhythms: Symptoms

  • in mitral regurgitation

  • Mitral Regurgitation: Symptoms

    Palsy

  • abducens nerve

  • Palsies of Cranial Nerves That Control Eye Movement: Sixth Cranial Nerve (Abducens Nerve) Palsy

  • Bell's (facial nerve)

  • Bell's Palsy

  • bulbar

  • Muscle Stimulation Disorders: Progressive Bulbar Palsy

  • cerebral

  • Cerebral Palsy (CP)

  • conjugate gaze

  • Conjugate Gaze Palsies

  • cranial nerve

  • Palsies of Cranial Nerves That Control Eye Movement

  • oculomotor nerve

  • Palsies of Cranial Nerves That Control Eye Movement: Third Cranial Nerve (Oculomotor Nerve) Palsy

  • peroneal nerve

  • Mononeuropathy: Peroneal Nerve Palsy

  • pseudobulbar

  • Muscle Stimulation Disorders: Primary Lateral Sclerosis and Progressive Pseudobulbar Palsy

  • radial nerve

  • Mononeuropathy: Radial Nerve Palsy

  • supranuclear

  • Progressive Supranuclear Palsy

  • trochlear

  • Palsies of Cranial Nerves That Control Eye Movement: Fourth Cranial Nerve (Trochlear Nerve) Palsy

  • ulnar nerve

  • Mononeuropathy: Ulnar Nerve Palsy

    Pamidronate

  • in multiple myeloma

  • Multiple Myeloma: Treatment and Prognosis

  • in osteogenesis imperfecta

  • Osteogenesis Imperfecta: Treatment

  • in Paget's disease of bone

  • Paget's Disease of Bone: Treatment

    Pancoast syndrome

    Cancer of the Lungs: Complications

    Pancreas

    Digestive SystemFigures
    Pancreas
    Pancreatitis
    Locating the PancreasFigures
    View of the Liver and GallbladderFigures
    Major Endocrine GlandsFigures
    Major Hormones Tables

  • abscess of

  • Abdominal Abscesses: Causes and Symptoms

  • age-associated changes in

  • Effects of Aging: Pancreas, Liver, and Gallbladder

  • cancer of

  • Pancreatic Cancer
    Rare Types of Pancreatic CancerSidebar

  • in multiple endocrine neoplasia

  • Multiple Endocrine Neoplasia Syndromes: Type 1 Disease

  • function tests of

  • Malabsorption: Diagnosis

  • gastrinoma of

  • Pancreatic Endocrine Tumors: Gastrinoma

  • glucagonoma of

  • Pancreatic Endocrine Tumors: Glucagonoma

  • infection of

  • Acute Pancreatitis: Complications

  • inflammation of

  • see Pancreatitis

  • insulinoma of

  • Pancreatic Endocrine Tumors: Insulinoma
    Hypoglycemia: Symptoms
    Hypoglycemia: Cause

  • pseudocyst of

  • Acute Pancreatitis: Complications
    Chronic Pancreatitis: Treatment

  • transplantation of

  • Diabetes Mellitus (DM): Experimental Treatments
    Pancreas Transplantation

  • tumors of

  • Pancreatic Endocrine Tumors
    Hypoglycemia: Symptoms
    Hypoglycemia: Cause

  • vipoma of

  • Pancreatic Endocrine Tumors: Vipoma

    Pancreatic duct

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

  • obstruction of

  • Gallstones: Symptoms

  • in pancreatitis

  • Chronic Pancreatitis
    Chronic Pancreatitis: Treatment

  • tumor of

  • Rare Types of Pancreatic CancerSidebar

    Pancreatitis

    Pancreatitis

  • acute

  • Acute Pancreatitis
    Some Causes of Acute PancreatitisSidebar

  • chronic

  • Chronic Pancreatitis

  • in dyslipidemia

  • Dyslipidemia: Symptoms

  • with endoscopic retrograde cholangiopancreatography

  • Imaging Tests

  • in mumps

  • Mumps: Symptoms and Diagnosis

  • necrotizing

  • Acute Pancreatitis: Complications

    PANDAS

    Anxiety Disorders in Children: Obsessive-Compulsive Disorder

    Panencephalitis, subacute sclerosing

    Measles: Prognosis
    Subacute Sclerosing Panencephalitis (SSPE)

    Panic attacks

  • in children and adolescents

  • Anxiety Disorders in Children: Panic Disorder

    Panic attacks and panic disorder

    Panic Attacks and Panic Disorder
    What Is Exposure Therapy?Sidebar

    Panniculitis

  • in alpha1-antitrypsin deficiency

  • Alpha1-Antitrypsin Deficiency: Symptoms

    Pantoprazole

    Drugs Used to Treat Peptic DisordersTables

    Pantothenic acid

    VitaminsTables

    PAPA syndrome

    Hereditary Periodic Fever Syndromes

    Papilledema

    Papilledema

    Papillitis, headache with

    How Headaches Differ Tables

    Papilloma, laryngeal

    Laryngeal Papillomas

    Pap test

    Selected Screening Schedule for AdultsTables
    Diagnosis: Screening
    Collecting Cervical CellsFigures
    Gynecologic Evaluation: Screening for Cervical Cancer
    Cervical Cancer: Pap Tests
    Cervical Cancer: Pap Tests
    Diagnostic ProceduresTables

  • during pregnancy

  • Cancer During Pregnancy

  • recommendations for

  • Cancer Screening RecommendationsTables

    Papule

    Medical Names for Marks and Growths on the SkinSidebar

    Paracentesis

    Diagnosis: Paracentesis
    Ascites: Symptoms and Diagnosis
    Diagnostic ProceduresTables

  • anterior chamber

  • Blockage of Central Retinal Arteries and Veins: Arterial Blockage

    Paracetamol

    see Acetaminophen

    Paracoccidioidomycosis

    Community-Acquired Pneumonia: Fungi
    Paracoccidioidomycosis

    Parade ground syncope (fainting)

    Symptoms: Causes

    Paraffin bath

    Types of Heat TherapyTables

    Paragonimiasis

    Community-Acquired Pneumonia: Parasites

    Parainfectious (acute disseminated) encephalomyelitis

    Other Primary Demyelinating Diseases
    Other Primary Demyelinating Diseases: Acute Disseminated Encephalomyelitis

    Parainfluenza virus infection

    Respiratory Tract Infections

    Paralysis

  • in botulism

  • Neuromuscular Junction Disorders: Symptoms

  • in decompression sickness

  • Decompression Sickness: Type II (More Severe)

  • of diaphragm, in newborn

  • Birth Injury: Nerve Injury

  • facial

  • Bell's Palsy

  • infantile

  • Polio

  • in lightning injury

  • Lightning Injuries: Symptoms

  • in locked-in state

  • Variations in Impaired ConsciousnessSidebar

  • periodic

  • Periodic Paralysis

  • in rabies

  • Rabies: Symptoms

  • sleep

  • Narcolepsy: Symptoms

  • spastic

  • Spinal Cord Disorders: Symptoms

  • in spinal cord injury

  • Where Is the Spinal Cord Damaged?Figures
    Spinal Cord Disorders: Treatment

  • in stroke

  • Stroke (CVA): Symptoms

  • tick

  • Tick ParalysisSidebar

  • Todd's

  • Seizure Disorders: Symptoms

  • vocal cord

  • Vocal Cord ProblemsFigures
    Vocal Cord Paralysis

    Paralytic ileus

    Ileus

    Paralytic illness

    Enteroviral Infections: Common in ChildhoodSidebar

    Paralytic strabismus

    Strabismus: Paralytic Strabismus

    Paranasal sinuses

    Locating the SinusesFigures

  • anatomy of

  • Nose and Sinuses
    A Look Inside the Nose and ThroatFigures

  • cancer of

  • Paranasal Sinus Cancer

  • disorders of

  • see also Sinusitis
    Polyp Formation in the NoseFigures
    Sinusitis
    Fungal Sinus InfectionsSidebar

  • pressure trauma to

  • Problems in Transit: Ear and Sinus Pressure

    Paraneoplastic syndromes

    Cancer of the Lungs: Complications
    Calcium: Causes
    What Are Paraneoplastic Syndromes?Sidebar

    Paranoia

  • in personality disorder

  • Personality Disorders: Paranoid Personality

  • in schizophrenia

  • Schizophrenia: Subtypes of Schizophrenia

    Paraparesis, spastic

  • hereditary

  • Hereditary Spastic Paraparesis

  • tropical

  • Tropical Spastic Paraparesis/HTLV-1–Associated Myelopathy

    Paraphilias

    Paraphilias

    Paraphimosis

    Phimosis and Paraphimosis: Paraphimosis

    Paraplegia

    see Spinal cord, injury to

    Parasite infections

  • gastrointestinal

  • Microorganisms That Cause GastroenteritisTables

  • pulmonary

  • Community-Acquired Pneumonia: Parasites

    Parasitic infection

    see also specific infections
    Types of Infectious OrganismsTables
    Parasitic Infections
    Other ParasitesTables
    Life Cycle of the HookwormFigures
    A Beef TapewormFigures

  • brain

  • Parasitic Infections

  • skin

  • Parasitic Skin Infections
    A Close-up Look at LiceFigures

  • urinary tract

  • Urinary Tract Infections (UTI): Parasites

    Parasomnias

    Parasomnias

    Parathyroid glands

    Major Endocrine GlandsFigures
    Major Hormones Tables

  • in polyglandular deficiency syndrome

  • Polyglandular Deficiency SyndromesSidebar

  • tumors of

  • Multiple Endocrine Neoplasia Syndromes: Type 1 Disease

    Parathyroid hormone

    Calcium
    Major Hormones Tables

  • excess of

  • Calcium: Causes
    What Is Hyperparathyroidism?Sidebar
    Multiple Endocrine Neoplasia Syndromes: Type 1 Disease
    Multiple Endocrine Neoplasia Syndromes: Type 2A Disease

  • low levels of

  • Calcium: Causes

  • in osteoporosis

  • Osteoporosis: Drugs

    Paregoric

    Drugs Used to Treat DiarrheaTables

    Parenteral nutrition

    Undernutrition: Intravenous Feeding
    Surgery: Hospitalization

    Paresthesia

    When the Foot's AsleepSidebar

    Paresthesias

  • in peripheral neuropathy

  • Mononeuropathy: Symptoms

    Parietal lobe

    Viewing the BrainFigures
    Brain: Cerebrum

  • injury to

  • When Specific Areas of the Brain Are DamagedFigures
    Dysfunction by Location: Parietal Lobe Damage

    Parkinsonism

    Parkinsonism

  • in multiple system atrophy

  • Multiple System Atrophy: Symptoms
    Multiple System Atrophy: Treatment

    Parkinson's disease

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

  • constipation in

  • Symptoms: Slowed Transit of Stool

  • dementia in

  • Dementia: Parkinson's Disease

  • information resources on

  • P

  • vs. Lewy body dementia

  • Dementia: Diagnosis
    Dementia: Parkinson's Disease

    Paronychia

    Infections: Paronychia

  • chronic

  • Infections: Chronic Paronychia

    Parotid glands

    Biology of the Mouth
    Salivary Gland Disorders
    Locating the Major Salivary GlandsFigures

  • in mumps

  • see Mumps

    Paroxysmal nocturnal dyspnea

    Heart Failure: Symptoms
    Symptoms: Heart Failure

    Paroxysmal nocturnal hemoglobinuria

    More About Some Causes of Anemia Tables

    Paroxysmal positional vertigo, benign

    Benign Paroxysmal Positional Vertigo (Benign Positional Vertigo)
    The Epley Maneuver: A Simple Cure for a Common Cause of VertigoFigures

    Paroxysmal supraventricular tachycardia

    Paroxysmal Supraventricular Tachycardia (SVT, PSVT)

  • in Wolff-Parkinson-White syndrome

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

    Parrot fever

    Psittacosis: An Unusual Type of PneumoniaSidebar

    Partial seizures

    Seizure Disorders: Symptoms

    Partial thromboplastin time (PTT)

    Diagnosis: Clotting Tests
    Blood Tests*Tables

    Parvovirus B19 infection (erythema infectiosum, fifth disease)

    Rashes
    Some Viral Infections At a GlanceTables
    Erythema Infectiosum

    Passive-aggressive personality

    Personality Disorders: Passive-Aggressive (Negativistic) Personality

    Patch

  • contraceptive

  • Contraception: Skin Patches and Vaginal Rings

  • drug administration by

  • Administration: Transdermal Route

  • eye, in amblyopia

  • Amblyopia: Treatment and Prognosis

    Patch test

    Diagnosis: Skin Tests
    Dermatitis: Symptoms and Diagnosis

    Patella (kneecap)

    Inside the KneeFigures

  • chondromalacia of

  • Chondromalacia Patellae
    Chondromalacia Patellae

  • in nail-patella syndrome

  • Glomerulonephritis (Nephritic Syndrome): Nail-Patella Syndrome

    Patellofemoral stress syndrome (runner's knee)

    When the Front of the Knee HurtsFigures

    Patellofemoral syndrome

    Chondromalacia Patellae

    Patent, for drugs

    Trade-Name and Generic Drugs: Patent Protection

    Patent ductus arteriosus

    Heart Defects: Patent Ductus Arteriosus
    Patent Ductus Arteriosus: Failure to CloseFigures

    Patterson-Kelly syndrome

    Obstruction: Esophageal Webs

    Pavlik harness

    Bone and Muscle Defects: Limb and Joint Defects

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