Hyperkalemia Differential Diagnosis Algorithm R/O Pseudo-hyperkalemia: • Possible Lab error! Alwavs Repeat Blood sample! • Leukocytosis, Thrombocytosis: cells lyse as sample is analyzed, releasing K+ into serum. • Excessive fist clenching + tourniquet while drawing blood (ischemia-induced RBC hemolysis) • RBC Hemolysis in the sample (rare) *TTKG should be high (>7) - principal cells should be trying to excrete more K+ to reduce plasma [K+] #Hyperkalemia #Differential #Diagnosis #Algorithm #causes #potassium #high #pathophysiology
