15 results
Hyperkalemia Differential Diagnosis Algorithm
R/O Pseudo-hyperkalemia:
 • Possible Lab error! Alwavs Repeat Blood sample!
 • Leukocytosis, Thrombocytosis:
Alwavs Repeat Blood ... while drawing blood ... reduce plasma [K+ ... Diagnosis #Algorithm #causes ... #potassium #high
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 ... suggests extra-renal causes ... losses: • High Blood ... • Low/Normal Blood
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
Burns • Trauma/Crush ... injury • Blood ... Blood transfusion ... differential #diagnosis #causes ... #potassium #high
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
Burns • Trauma/Crush ... injury • Blood ... Blood transfusion ... differential #diagnosis #causes ... #potassium #high
Kussmaul's Sign on Physical Exam

What’s the diagnosis?
Severe biventeicular failure with + Kussmaul sign! NICM. No constriction!

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accept increased blood ... infarct, and other rarer ... causes of right-sided ... physicalexam #clinical #video
Hyperkalemia - Diagnosis and Management - GrepMed Handbook

S/Sx: Most pts asymptomatic. Weakness, cramping, nausea, paresthesias, palpitations,
Weakness, cramping, nausea ... Lysis (TLS, rhabdo/crush ... tourniquet / IVF line draw ... only if no clear cause ... Management #Treatment #potassium
Causes of Hyperkalemia - Differential Diagnosis Framework
 • Cellular Shift:
   - Exercise
Causes of Hyperkalemia ... to Aldosterone: K ... hyperkalemia: Blood ... draw error (Collection ... #potassium #high
Lactated Ringers (LR) vs Normal Saline (NS) - Comparison

Composition of LR:
 • Sodium 130 mEq/L
 •
130 mEq/L • Potassium ... trial • Minimal K ... Can give with blood ... shift • Saline Causes ... • Saline May Cause
Hyperkalemia Management
Pseudohyperkalemia: 1. Hemolyzed sample 2. Blood drawn from a site/line where potassium or TPN is
Blood drawn from ... site/line where potassium ... present or in severe K ... Decrease K: • ... Management #treatment #potassium
Causes of Hyperkalemia
Pseudohyperkalemia
 - Tourniquet use
 - Hemolysis (in vitro)
 - Leukocytosis
 - Thrombocytosis
Intra- to extracellular
Causes of Hyperkalemia ... load - Potassium ... Transfusion of aged blood ... Rhabdomyolysis/crush ... #Hyperkalemia #Causes