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  • Immunology; Allergic Disorders
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  • 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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Po

Podagra

Gout: Symptoms and Signs
Basic Ca Phosphate and Calcium Oxalate Crystal Deposition Diseases: Basic Ca phosphate crystal deposition disease

Podophyllotoxins

Commonly Used Antineoplastic DrugsTables

Podophyllum

Warts: Common warts

POEMS syndrome

Variant Expressions of Multiple MyelomaTables
Polyglandular Deficiency Syndromes: POEMS Syndrome

Poikilocytosis

Evaluation of Anemia: Testing

Poisoning

see also specific poisons
Poisoning
Common Toxic Syndromes (Toxidromes)Tables
Symptoms and Treatment of Specific Poisons Tables

  • activated charcoal in

  • Poisoning: Activated charcoal

  • alkaline diuresis in

  • Poisoning: Alkaline diuresis

  • antidotes for

  • Common Specific AntidotesTables

  • chelation therapy in

  • Guidelines for Chelation TherapyTables

  • decontamination in

  • Poisoning: Topical decontamination

  • dialysis in

  • Poisoning: Dialysis

  • food

  • see Food poisoning

  • gastric emptying in

  • Poisoning: Gastric emptying

  • neurotransmitters in

  • Examples of Disorders Associated With Defects in NeurotransmissionTables

  • nontoxic substances vs

  • Substances Usually Not Dangerous When Ingested*Tables

  • plant

  • Common Specific AntidotesTables
    Plant Poisoning
    Moderately Poisonous PlantsTables

  • prevention of

  • Poisoning: Prevention

  • venomous

  • Snakebites
    Significant Venomous Snakes by RegionTables
    Identifying pit vipersFigures
    Severity of Pit Viper EnvenomationTables

  • whole-bowel irrigation in

  • Poisoning: Whole-bowel irrigation

    Poison ivy

    Contact Dermatitis: Allergic contact dermatitis (ACD)
    Causes of Allergic Contact DermatitisTables
    Moderately Poisonous PlantsTables

    Pokeweed poisoning

    Moderately Poisonous PlantsTables

    Poland's syndrome

    Muscle Abnormalities

    Poliovirus infection

    Some Neurologic VirusesTables
    Syndromes Caused by EnterovirusesTables
    Poliomyelitis

  • vaccine against

  • Vaccines Available in the USTables
    Routine Vaccinations: Poliomyelitis
    Poliomyelitis: Prevention

  • in pediatric HIV infection

  • Considerations for Use of Live Vaccines in Children With HIV InfectionTables

  • schedule for

  • Recommended Immunization Schedule for Ages 0–6 yrTables
    Recommended Immunization Schedule for Ages 7–18 yrTables
    Catch-up Immunization Schedule for Ages 4 mo–18 yrTables

    Politzerization

    Otitis Media (Secretory): Treatment

    Polyangiitis

  • eosinophilic granulomatosis with

  • Eosinophilic Granulomatosis with Polyangiitis (EGPA)

  • granulomatosis with

  • Granulomatosis with Polyangiitis (GPA)

  • microscopic

  • Microscopic Polyangiitis (MPA)

    Polyarteritis nodosa

    Polyarteritis Nodosa (PAN)
    Some Causes of FUOTables
    Some Causes of Scrotal PainTables

  • rheumatoid arthritis vs

  • Rheumatoid Arthritis (RA): Differential diagnosis

    Polychondritis

  • relapsing

  • Relapsing Polychondritis

  • bronchiectasis in

  • Factors Predisposing to BronchiectasisTables

    Polycystic kidney disease

    Major Groups of Cystic NephropathiesTables
    Autosomal Dominant Polycystic Kidney Disease (ADPKD)

  • autosomal recessive

  • Renal Anomalies: Autosomal recessive polycystic kidney disease

    Polycystic ovary (Stein-Leventhal) syndrome

    Adrenal Virilism: Diagnosis
    Polycystic Ovary Syndrome (PCOS)
    Ovulatory Dysfunction: Treatment

    Polycythemia

  • Eisenmenger's syndrome and

  • Eisenmenger's Syndrome: Symptoms and Signs

  • perinatal

  • Perinatal Polycythemia and Hyperviscosity Syndrome

  • primary

  • Polycythemia Vera
    WHO Criteria for Diagnosis of Polycythemia VeraTables

  • secondary

  • Polycythemia Vera: Secondary Erythrocytosis

  • in small-for-gestational-age infant

  • Small-for-Gestational-Age (SGA) Infant: Complications

    Polycythemia vera

    Classification of Myeloproliferative DisordersTables
    Polycythemia Vera
    WHO Criteria for Diagnosis of Polycythemia VeraTables

    Polydipsia

    Some Causes of PolyuriaTables

  • hyponatremia and

  • Electrolyte Disorders: Euvolemic hyponatremia

  • psychogenic

  • Central Diabetes Insipidus: Pathophysiology
    Central Diabetes Insipidus: Psychogenic polydipsia
    Polyuria: Testing

    Polyethylene glycol

  • in constipation

  • Agents Used to Treat ConstipationTables
    Constipation: Types of laxatives
    Treatment of ConstipationTables

  • in iron poisoning

  • Iron Poisoning: Treatment
    Lead Poisoning: Treatment

  • in poisoning

  • Poisoning: Whole-bowel irrigation

    Polyglandular autoimmune disease

    Differentiation of Generalized Hypopituitarism from Other Selected DisordersTables

    Polyglandular deficiency syndromes

    Polyglandular Deficiency Syndromes
    Characteristics of Types I, II, and III Polyglandular Deficiency SyndromesTables

    Polyhydramnios

    Risk Factors for Complications During Pregnancy: Polyhydramnios (hydramnios) and oligohydramnios
    Congenital Gastrointestinal Anomalies: High Alimentary Tract Obstruction

    Polymenorrhea

    Vaginal Bleeding
    Dysfunctional Uterine Bleeding (DUB): Symptoms and Signs

    Polymerase chain reaction (PCR)

    Nucleic Acid–Based Identification Methods for Infectious Disease: Amplification
    Genetic Diagnostic Technologies

  • in HIV infection

  • Human Immunodeficiency Virus (HIV) Infection in Infants and Children: HIV-specific tests

  • in pneumonia

  • Community-Acquired Pneumonia: Pathogens

    Polymicrogyria

    Brain Anomalies: Malformed cerebral hemispheres

    Polymorphonuclear leukocytes

    Components of the Immune System: Polymorphonuclear Leukocytes

  • defects in

  • Immunodeficiency Disorders: Primary immunodeficiencies
    Primary Immunodeficiency Disorders Tables
    Initial and Additional Laboratory Tests for ImmunodeficiencyTables
    Approach to the Patient With Suspected Immunodeficiency: Additional testing
    Advanced Laboratory Tests for Immunodeficiency Tables
    Chédiak-Higashi Syndrome
    Leukocyte Adhesion Deficiency

    Polymorphous light eruptions

    Photosensitivity: Polymorphous light eruption

    Polymyalgia rheumatica

    Polymyalgia Rheumatica
    Some Causes of FUOTables

  • fibromyalgia vs.

  • Fibromyalgia: Diagnosis

    Polymyositis

    Polymyositis and Dermatomyositis

  • cancer-related

  • Paraneoplastic Syndromes: Rheumatologic paraneoplastic syndromes

  • polymyalgia rheumatica vs

  • Polymyalgia Rheumatica: Diagnosis

  • rheumatoid arthritis vs

  • Rheumatoid Arthritis (RA): Differential diagnosis

    Polymyxin B

    Polypeptides
    PolypeptidesTables
    Some Clinical Uses of PolypeptidesTables

  • topical

  • Principles of Topical Dermatologic Therapy: Antimicrobials

    Polyneuritis

  • acute idiopathic

  • Guillain-Barré Syndrome (GBS)

    Polyneuropathy

    see also Neuritis
    see also Neuropathy
    Peripheral Neuropathy: Polyneuropathy
    Toxic Causes of PolyneuropathiesTables

  • demyelinating

  • Chronic Inflammatory Demyelinating Polyneuropathy

  • diabetic

  • Diabetes Mellitus and Disorders of Carbohydrate Metabolism: Diabetic neuropathy
    Diabetic foot screening. Figures

  • weakness and

  • Some Causes of Muscle WeaknessTables

    Polyp(s)

  • cervical

  • Cervical Polyps

  • colonic

  • GI Bleeding: Hemostasis
    Polyps of the Colon and Rectum

  • gallbladder

  • Tumors of the Gallbladder and Bile Ducts

  • gastric

  • Stomach Cancer: Etiology

  • nasal

  • Nasal Polyps

  • rectal

  • Polyps of the Colon and Rectum

  • vocal cord

  • Laryngeal disordersFigures
    Vocal Cord Polyps, Nodules, and Granulomas
    Vocal Cord Polyps, Nodules, and Granulomas: DiagnosisTables

    Polypeptide antibiotics

    Polypeptides
    PolypeptidesTables
    Some Clinical Uses of PolypeptidesTables

    Polyposis

  • familial

  • Familial Adenomatous Polyposis
    Cellular and Molecular Basis of Cancer: Other influences

    Polyradiculopathy

    Common Manifestations of HIV Infection by Organ SystemTables

    Polysomnography

    Approach to the Patient With a Sleep or Wakefulness Disorder: Testing
    Narcolepsy: Diagnosis

  • in sleep apnea

  • Obstructive Sleep Apnea: Diagnosis

    Polyuria

    see also Diabetes insipidus
    Central Diabetes Insipidus: Pathophysiology
    Common Causes of PolyuriaTables
    Polyuria
    Some Causes of PolyuriaTables

  • obstructive uropathy and

  • Obstructive Uropathy: Symptoms and Signs

    POMC (pro-opiomelanocortin)

    Principles of Endocrinology: Other hormones

    Pompe's disease

    Glycogen Storage Diseases and Disorders of GluconeogenesisTables

    Pompholyx

    Hand and Foot Dermatitis: Dyshidrotic eczema (dyshidrotic dermatitis)

    Pontiac fever

    Legionella Infections

    P&O&O2

    see also Acidosis
    see also Alkalosis

    Popcorn workers' lung

    Occupational Asthma

    Popliteal artery

  • aneurysm of

  • Peripheral Arterial Aneurysms

  • injury to

  • Dislocations: Knee (tibiofemoral) dislocations
    Dislocations: Knee (tibiofemoral) dislocations

    Popliteal cyst

    Rheumatoid Arthritis (RA): Symptoms and Signs

    Popliteus tendinitis

    Popliteus Tendinitis

    Poppers

    Volatile Nitrites

    Poractant alfa

    Respiratory Distress Syndrome: Treatment

    Porencephaly

    Brain Anomalies: Porencephaly

    Pork tapeworm infection

    Taeniasis Solium and Cysticercosis
    Taenia solium life cycle. Figures
    Helminthic Brain Infections: Neurocysticercosis

    Porphobilinogen

  • urinary

  • Screening for PorphyriasTables
    Acute Porphyrias: Acute attack

    Porphobilinogen deaminase deficiency

    Substrates and Enzymes of the Heme Biosynthetic Pathway and the Diseases Associated With Their DeficiencyTables
    Acute Porphyrias

    Porphyria

    Porphyrias
    Some Less Common PorphyriasTables

  • acute intermittent

  • Substrates and Enzymes of the Heme Biosynthetic Pathway and the Diseases Associated With Their DeficiencyTables
    Major Features of the Two Most Common PorphyriasTables
    Acute Porphyrias

  • congenital erythropoietic

  • Some Less Common PorphyriasTables

  • cutaneous (porphyria cutanea tarda)

  • Acute Viral Hepatitis: Hepatitis C virus (HCV)
    Skin Manifestations of Internal Disease: GI disorders
    Substrates and Enzymes of the Heme Biosynthetic Pathway and the Diseases Associated With Their DeficiencyTables
    Major Features of the Two Most Common PorphyriasTables
    Overview of Cutaneous Porphyrias
    Porphyria Cutanea Tarda

  • δ-aminolevulinic acid dehydratase-deficient

  • Substrates and Enzymes of the Heme Biosynthetic Pathway and the Diseases Associated With Their DeficiencyTables
    Acute Porphyrias

  • dental discoloration in

  • Evaluation of the Dental Patient: Physical examination

  • drug precipitation of

  • Acute Porphyrias: Precipitating Factors
    Drugs and Porphyria*Tables

  • dual

  • Some Less Common PorphyriasTables

  • erythropoietic

  • Oral Findings in Systemic DisordersTables
    Substrates and Enzymes of the Heme Biosynthetic Pathway and the Diseases Associated With Their DeficiencyTables
    Erythropoietic Protoporphyria
    Doses of β-Carotene in Erythropoietic ProtoporphyriaTables

  • hepatoerythropoietic

  • Substrates and Enzymes of the Heme Biosynthetic Pathway and the Diseases Associated With Their DeficiencyTables
    Some Less Common PorphyriasTables

  • neurovisceral abnormalities in

  • Screening for PorphyriasTables
    Acute Porphyrias: The acute porphyric attack

  • photosensitivity in

  • Screening for PorphyriasTables
    Acute Porphyrias: Skin symptoms in VP and HCP
    Overview of Cutaneous Porphyrias
    Porphyria Cutanea Tarda: Symptoms and Signs

  • screening for

  • Porphyrias: Diagnosis
    Screening for PorphyriasTables

  • variegate

  • Substrates and Enzymes of the Heme Biosynthetic Pathway and the Diseases Associated With Their DeficiencyTables
    Acute Porphyrias

    Porphyrins

    Porphyrias: Diagnosis
    Screening for PorphyriasTables
    Acute Porphyrias: Acute attack

  • fecal

  • Acute Porphyrias: Determination of type

    Porphyrinuria

  • secondary

  • Porphyrias: Secondary porphyrinuria

    Portal hypertension

    Portal Hypertension
    Most Common Causes of Portal HypertensionTables

  • ascites in

  • Ascites

  • hepatopulmonary syndrome and

  • Pulmonary Hypertension: Hepatopulmonary Syndrome

  • portal vein thrombosis and

  • Portal Vein Disorders: Portal Vein Thrombosis

  • varices and

  • Varices
    Portal Hypertension: Symptoms and Signs

    Portal-systemic encephalopathy

    Portosystemic Encephalopathy
    Clinical Stages of Portosystemic EncephalopathyTables
    Laboratory Tests of the Liver and Gallbladder: Ammonia

    Portal triads

    Approach to the Patient With Liver Disease
    Approach to the Patient With Liver DiseaseFigures
    Approach to the Patient With Liver DiseaseFigures

    Portal veins

    see also Portal hypertension
    Approach to the Patient With Liver Disease
    Approach to the Patient With Liver DiseaseFigures

  • disorders of

  • Portal Vein Disorders

  • thrombosis of

  • Portal Vein Disorders: Portal Vein Thrombosis
    Common Causes of Portal Vein Thrombosis*Tables

    Portopulmonary hypertension

    Pulmonary Hypertension: Portopulmonary Hypertension

    Portosystemic encephalopathy

    Portal Hypertension: Pathophysiology

    Portuguese man-of-war sting

    Marine Bites and Stings: Cnidaria (Coelenterates, such as jellyfish and sea anemones)

    Port-wine stain

    Capillary Malformations
    Sturge-Weber Syndrome

    Posaconazole

    Some Drugs for Systemic Fungal InfectionsTables
    Antifungal Drugs: Posaconazole

  • drug interactions of

  • Some Drugs With Potentially Serious Drug-Drug Interactions*Tables

    Positive end-expiratory pressure (PEEP)

    Overview of Mechanical Ventilation: Respiratory Mechanics
    Components of airway pressure during mechanical ventilation, illustrated by an inspiratory-hold maneuver. Figures
    Overview of Mechanical Ventilation: Ventilator settings

  • in ARDS

  • Acute Hypoxemic Respiratory Failure (AHRF, ARDS): Mechanical ventilation in ALI/ARDS

  • in COPD

  • Ventilatory Failure: ACRF

  • intrinsic (autoPEEP)

  • Overview of Mechanical Ventilation: Respiratory Mechanics

    Positron emission tomography (PET)

    Radionuclide Scanning: Positron Emission Tomography

  • in cardiovascular disorders

  • Cardiac Imaging Tests: Positron emission tomography (PET)

  • in Lewy body dementia

  • Lewy Body Dementia and Parkinson Disease Dementia: Diagnosis

  • in lung cancer

  • Diagnostic Pulmonary Procedures: PET
    Lung Carcinoma: Imaging
    Lung Carcinoma: Tests for initial evaluation and staging

  • in solitary pulmonary nodule

  • Solitary Pulmonary Nodule: Testing

  • in Takayasu arteritis

  • Imaging Tests Used in Takayasu ArteritisTables

    Postcholecystectomy syndrome

    Acalculous Biliary Pain: Postcholecystectomy Syndrome

    Postconcussion syndrome

    Traumatic Brain Injury (TBI): Long-term symptoms

    Postdatism

    Postterm Pregnancy

    Posterior interosseous nerve syndrome

    Radial Tunnel Syndrome

    Postherpetic neuralgia

    Herpes Zoster: Symptoms and Signs
    Herpes Zoster: Treatment

    Posthitis

    Penile and Scrotal Disorders

    Postinfectious glomerulonephritis

    Causes of GlomerulonephritisTables
    Postinfectious Glomerulonephritis

    Postmature infant

    see also Neonate
    Postmature Infant

    Post-myocardial infarction syndrome

    Acute Coronary Syndromes (ACS): Symptoms and Signs
    Acute Coronary Syndromes (ACS): Post-MI syndrome (Dressler syndrome)
    Pericarditis: Etiology
    Pericarditis: Pericardial effusion
    Pericarditis: Acute pericarditis
    Pericarditis: Treatment

    Postnasal drip syndrome

    Some Causes of CoughTables

    Postoperative care

    Postoperative Care

    Postpartum care

    Postpartum Care and Associated Disorders
    Normal Postpartum ChangesTables

    Postpartum depression

    Depressive Disorders: Etiology

    Postpericardiotomy syndrome

    Pericarditis: Etiology
    Pericarditis: Acute pericarditis
    Pericarditis: Treatment

    Postphlebitic syndrome

    Peripheral Venous Disorders: Prognosis
    Chronic Venous Insufficiency and Postphlebitic Syndrome

    Postpoliomyelitis syndrome

    Poliomyelitis: Postpoliomyelitis syndrome

    Postseptal cellulitis

    Preseptal and Orbital Cellulitis

    Poststreptococcal reactive arthritis

    Rheumatic Fever: Poststreptococcal Reactive Arthritis

    Postthrombotic syndrome

    Chronic Venous Insufficiency and Postphlebitic Syndrome

    Posttraumatic stress disorder

    Stress Disorders: Posttraumatic Stress Disorder
    Diagnosis of Posttraumatic Stress DisorderTables

  • in children and adolescents

  • Anxiety Disorders in Children and Adolescents: Acute and Posttraumatic Stress Disorders (PTSD)

  • rape and

  • Medical Examination of the Rape Victim: Symptoms and Signs

    Postural drainage

    Pulmonary Rehabilitation

    Postural orthostatic tachycardia syndrome

    Orthostatic Hypotension: Postural orthostatic tachycardia syndrome (POTS)
    Tilt Table Testing

    Postural reeducation

    Types of Alternative MedicineTables

    Postvoid residual volume

    Urinary Incontinence in Adults: Testing
    Urinary Retention: Diagnosis
    Acute Kidney Injury: Determination of cause

    Potassium

    Overview of Disorders of Potassium Concentration

  • blood levels of

  • Fluid Metabolism
    Overview of Disorders of Potassium Concentration: K shifts
    Hypokalemia: Diagnosis
    Hyperkalemia: Diagnosis

  • in elderly

  • Drug Categories of Concern in the Elderly: Diuretics

  • in body fluids

  • Composition of Body FluidsTables

  • in chronic kidney disease

  • Chronic Kidney Disease: Fluid and electrolytes

  • deficiency of

  • see also Hypokalemia
    Hypokalemia
    ECG patterns in hypokalemia and hyperkalemia. Figures

  • protein-energy undernutrition treatment and

  • Protein-Energy Undernutrition: Complications of treatment

  • in diabetic ketoacidosis

  • Diabetic Ketoacidosis (DKA): Treatment

  • dietary

  • Nutrition: General Considerations: MacromineralsTables
    Overview of Disorders of Potassium Concentration: K metabolism

  • drug interactions with

  • Nutrient-Drug Interactions

  • excess of

  • see also Hyperkalemia
    ECG patterns in hypokalemia and hyperkalemia. Figures
    Hyperkalemia
    Factors Contributing to HyperkalemiaTables

  • in hypokalemic paralysis

  • Familial Periodic Paralysis: Hypokalemic

  • in nonketotic hyperosmolar syndrome

  • Nonketotic Hyperosmolar Syndrome (NKHS): Treatment

  • replacement of

  • Hypokalemia: Treatment

  • in cholera

  • Cholera: Treatment

  • supplements of

  • Hypertension: Diuretics

  • toxicity of

  • Complications of Transfusion: Complications of massive transfusion

  • transtubular gradient of

  • Renal Tubular Acidosis (RTA): Diagnosis

  • urinary

  • Overview of Disorders of Potassium Concentration: K metabolism
    Hypokalemia: Diagnosis of cause
    Metabolic Alkalosis: Diagnosis

    Potassium channel blockers

    Antiarrhythmic Drugs (Vaughan Williams Classification) Tables
    Arrhythmias and Conduction Disorders: Class III

    Potassium citrate

    Gout: Other treatments

    Potassium cyanide poisoning

    Symptoms and Treatment of Specific Poisons Tables

    Potassium hydroxide (KOH) test

    Overview of Vaginitis: Diagnosis

    Potassium iodide (KI)

    Radiation Exposure and Contamination: Internal decontamination

  • in pregnancy

  • Some Drugs With Adverse Effects During PregnancyTables

    Potassium nitrite poisoning

    Symptoms and Treatment of Specific Poisons Tables

    Potassium permanganate poisoning

    Symptoms and Treatment of Specific Poisons Tables

    Potassium phosphate

    Hypophosphatemia: Oral treatment

    Potato poisoning

    Moderately Poisonous PlantsTables

    Potato riddler's lung

    Examples of Hypersensitivity PneumonitisTables

    Pothos poisoning

    Moderately Poisonous PlantsTables

    POTS (postural orthostatic tachycardia syndrome)

    Orthostatic Hypotension: Postural orthostatic tachycardia syndrome (POTS)
    Tilt Table Testing

    Potter syndrome

    Risk Factors for Complications During Pregnancy: Polyhydramnios (hydramnios) and oligohydramnios
    Renal Anomalies: Renal agenesis

    Pott's disease

    Tuberculosis (TB): Children
    Tuberculosis (TB): TB of bones and joints
    Spinal Epidural Abscess

    Povidone iodine

    Principles of Topical Dermatologic Therapy: Antimicrobials
    Lacerations: Cleansing

    Powassan virus infection

    Some Neurologic VirusesTables
    Arbovirus, Arenavirus, and Filovirus DiseasesTables

    Power of attorney for health care

    Consent and Surrogate Decision Making: Adults
    Advance Directives: Durable power of attorney for health care

    Poxvirus infection

    Molluscum Contagiosum
    Zoonotic Diseases: Contagious ecthyma

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