16 results
Causes of Hypokalemia - Differential Diagnosis Algorithm
Increased Loss 
 - Increased GI Loss
 - Increased Urinary
Causes of Hypokalemia ... Transcellular Shift ... Diagnosis #Algorithm #causes ... #potassium #low ... #pathophysiology
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
phlebotomy High ... Intracellular Shift ... Medications 2. ... differential #diagnosis #causes ... #potassium #high
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
phlebotomy High ... Intracellular Shift ... Medications 2. ... differential #diagnosis #causes ... #potassium #high
Causes of Hyperkalemia - Differential Diagnosis Framework
 • Cellular Shift:
   - Exercise
Causes of Hyperkalemia ... Framework • Cellular Shift ... hyperosmolality - Medications ... Differential #Diagnosis #Causes ... #potassium #high
Digoxin Pharmacology and Pathophysiology
1) Na/K ATPase Pump - Digoxin works by directly binding to and inhibiting
intracellular calcium causes ... - Hyperkalemia ( ... high potassium levels ... (or low potassium ... #cardiology
Hyperkalemia Management
Pseudohyperkalemia: 1. Hemolyzed sample 2. Blood drawn from a site/line where potassium or TPN is
Hyperkalemia Management ... • Order a STAT EKG ... minutes-hour) -Shift ... or dialysis • SLOW ... #high
Hyperkalemia - Diagnosis and Management - GrepMed Handbook

S/Sx: Most pts asymptomatic. Weakness, cramping, nausea, paresthesias, palpitations,
Etiology: • Medications ... only if no clear cause ... STOP offending medications ... acidosis) • Low ... Management #Treatment #potassium
Leukostasis vs Tumor Lysis Syndrome
Leukostasis:
 • Pathophysiology: Large, immature blasts and high WBC count cause hyperviscosity
immature blasts and high ... WBC count cause ... , Elevated Cr, Low ... hydration - Hyperkalemia ... unless worrisome EKG
Lactated Ringers (LR) vs Normal Saline (NS) - Comparison

Composition of LR:
 • Sodium 130 mEq/L
 •
130 mEq/L • Potassium ... Is Dangerous in Hyperkalemia ... transcellular shift ... • Saline Causes ... densa receives high
Premature Ventricular Complexes (PVC's) - Summary Framework

Why PVCs?  Can be the first manifestation of cardiac
heart disease Causes ... Hypomagnesemia • Hypokalemia ... classified as: • Low ... 300 = NSVT EKG ... #differential #cardiology