16 results
Hypokalemia - Differential Diagnosis
Poor Intake 
 - Starvation
 - Anorexia
GI Losses 
 - Vomiting / NG
Hypokalemia - Differential ... Renal tubular acidosis ... Differential #Diagnosis #Low ... #Potassium #Table ... Classification #Causes
Hypokalemia - Differential Diagnosis Algorithm
Extra-renal Losses:
 • Normal Acid-Base: Low intake
 • Metabolic acidosis: Gl tract
Hypokalemia - Differential ... • Metabolic acidosis ... Diagnosis #Algorithm #causes ... #potassium #low ... #nephrology
Modified Hyponatremia Algorithm
Hypertonic Hyponatremia: Hyperglycemia, Mannitol, Urologic irrigants
Hypotonic Hyponatremia: 
 • ADH ON (UOsm > 100):
ON (UNa < 30): Hypovolemia ... , Heart failure, ... Primary polydipsia, Low ... Algorithm #diagnosis #sodium ... #nephrology
Hyponatremia Diagnosis Algorithm
UOsm ≥ POsm - Vasopressin-Dependent
 • UNa < 20 mEq/L - Appropriate (↓ EABV)
EABV) - Consider: Hypovolemia ... , Heart failure, ... Primary polydipsia, Low ... differential #algorithm #causes ... #nephrology
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
time you have a case ... Present (Uosm ≥100): Hypovolemia ... renal perfusion (Heart ... differential #diagnosis #table ... #sodium #nephrology
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
treated with IV potassium ... wasting from other causes ... consumption • Low ... - Metabolic acidosis ... #nephrology #low
Digoxin Pharmacology and Pathophysiology
1) Na/K ATPase Pump - Digoxin works by directly binding to and inhibiting
intracellular calcium causes ... contraction) of the heart ... - Decreased heart ... - Hyperkalemia ( ... (or low potassium
Heat Illnesses and Heat Stroke - Differential Diagnosis Framework

Heat Cramps:
 • Muscle pain or spasm -
Dehydration - Loss of sodium ... /Potassium - Extreme ... illness → Hypernatremia ... - Hyperkalemia ... differential #diagnosis #causes
Hyponatremia - Differential Algorithm
Isotonic Hyponatremia: Hyperlipidemia, Hyperproteinemia, Recent TURP
Hypotonic Hyponatremia: 
 • Hypovolemia: Diuretics/Nephropathies, Vomiting, Diarrhea,
: • Hypovolemia ... Hypervolemia: Congestive Heart ... Algorithm #diagnosis #causes ... #nephrology #sodium ... #low
Lactated Ringers (LR) vs Normal Saline (NS) - Comparison

Composition of LR:
 • Sodium 130 mEq/L
 •
130 mEq/L • Potassium ... Is Dangerous in Hyperkalemia ... shift • Saline Causes ... decreased renal blood flow ... • Saline May Cause