33 results
Sensitivity is the proportion of truly diseased persons in the screened population who are identified as
Sensitivity is the proportion ... Specificity is the proportion ... NegativePredictiveValue #Calculation ... #Table #PPV #NPV ... #Formulas #Statistics
Emergency Management of Hyperkalemia in Adults
Assess Patient - Airway Breathing Circulation Disability Exposure (ABCDE) Approach
 •
Airway Breathing Circulation ... mmol/L - Consider cause ... clinical scenario, ECG ... Prevention - Consider cause ... #management #algorithm
Causes of Hypercalcemia - Differential Diagnosis Algorithm
 • Primary Hyperparathyroidism 
 • Possible Familial Hypocalciuric Hypercalcemia
Causes of Hypercalcemia ... Differential Diagnosis Algorithm ... Granulomatous Disorders (eg ... Differential #Diagnosis #Algorithm ... #Causes #endocrinology
Hyperkalemia shortens repolarization; changes in the T wave provide the earliest clues to hyperpotassemia.
 - At
Hyperkalemia shortens ... repolarization causes ... #Diagnosis #Hyperkalemia ... #EKG #ECG #Changes ... #Progression #Table
Constipation - Differential Diagnosis Algorithm
Diet/Lifestyle
 • Fibre
 • Calories
 • Fluid
 • Exercise
 • Psychosocial
Medications
 •
Differential Diagnosis Algorithm ... Hypothyroidism • Hypokalemia ... • Hypercalcemia ... Differential #Diagnosis #Algorithm ... #Causes
Etiologies of Hypernatremia - Differential Diagnosis
GI losses / Insensible losses
Sodium Overload
Transcellular Movement of Water
Central Diabetes Insipidus
- Medications (e.g ... cisplatin) - Chronic hypercalcemia ... - Chronic hypokalemia ... Differential #Diagnosis #Table ... #Causes
Reflex Testing - Causes of Hyporeflexia and Hyperreflexia
Focal Hyporeflexia: 
 • Radiculopathy, Mononeuropathy, Polyneuropathy, Acute stroke,
Reflex Testing - Causes ... Hyporeflexia: • Hypercalcemia ... Deep coma (any cause ... polyneuropathy (e.g ... differential #diagnosis #table
USMLE Epidemiology and Biostatistics Summary
Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
PPV: proportion ... NPV: proportion ... but not on the causal ... Biostatistics #formulas ... #calculations #
Causes of Fatigue - Differential Diagnosis Algorithm
Endocrine
 • Hypo/Hyperthyroidism
 • Diabetes
 • Pituitary Insufficiency
 • Adrenal
Causes of Fatigue ... Differential Diagnosis Algorithm ... Liver Failure • Hypercalcemia ... • Drug Abuse (e.g ... #causes
Causes of Secondary Hypertension - Workup and Differential Diagnosis
Approach (when evaluation should be done):
1. Severe or
Causes of Secondary ... with previously stable ... disorders including hypokalemia ... Hyperthyroidism, Hypercalcemia ... Hypertension #Workup #causes