14 results
Etiologies of Hypernatremia - Differential Diagnosis
GI losses / Insensible losses
Sodium Overload
Transcellular Movement of Water
Central Diabetes Insipidus
Infiltrative disorders (e.g ... - Medications (e.g ... renal diseases (e.g ... #Diagnosis #Table ... #Causes
Hyperkalemia - Management Algorithm
 • IV calcium
 • IV insulin and glucose and/or salbutamolt
 • Consider
Hyperkalemia - Management ... potassium and ECG ... Widening of QRS complex ... blocks, QRS axis shift ... #potassium #high
Reflex Testing - Causes of Hyporeflexia and Hyperreflexia
Focal Hyporeflexia: 
 • Radiculopathy, Mononeuropathy, Polyneuropathy, Acute stroke,
Reflex Testing - Causes ... Hyporeflexia: • Hypercalcemia ... polyneuropathy (e.g ... #differential # ... diagnosis #table
Hypermagnesemia - Etiologies by Mechanism
Renal Failure 
Excessive Mg Administration 
 - Massive PO intake
IV Mg infusion (e.g ... Hypermagnesemia #Differential ... #Diagnosis #High ... #Magnesium #Table ... #Causes #Management
Premature Ventricular Complexes (PVC's) - Summary Framework

Why PVCs?  Can be the first manifestation of cardiac
arrhythmia syndromes (e.g ... heart disease Causes ... Hypomagnesemia • Hypokalemia ... percent PVCs/day • High ... 300 = NSVT EKG
Causes of Hyperkalemia - Intercellular Shift - Differential Diagnosis Algorithm
Transcellular Shift - Appropriate renal excretion (GFR,
Causes of Hyperkalemia ... Intercellular Shift ... - Differential ... Transcellular Shift ... • Cell Lysis (e.g
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
Causes of ST Segment ... Elevation - Differential ... • Short QT, high ... diagnosis #cardiology #ecg ... #ekg #electrocardiogram
Causes of Secondary Hypertension - Workup and Differential Diagnosis
Approach (when evaluation should be done):
1. Severe or
with previously stable ... risk factors (eg ... hypertension (eg ... hypertension (eg ... #Differential #
Pediatric Vomiting - Gastrointestinal and Systemic Causes - Differential Diagnosis Algorithm
Hepatobiliary:
 • Acute Hepatitis
 • Acute
Gastrointestinal and Systemic Causes ... - Differential ... • Uremia • Hypercalcemia ... Other: • Sepsis (e.g ... Carbon Monoxide High
Causes of Hyperkalemia - Reduced Excretion - Differential Diagnosis Algorithm

Reduced flow through distal nephron - TTKG
Causes of Hyperkalemia ... Reduced Excretion - Differential ... • Low EABV (e.g ... • NSAlDs #Hyperkalemia ... Diagnosis #Algorithm #Causes