This template is a detailed flowchart presenting the diagnostic approach to hyperkalemia (potassium levels > 5.5 mEq/L) in a critical - care setting. It starts by highlighting the normal potassium range (3.5 - 5.5 mEq/L). If hyperkalemia is detected, it first checks for a transcellular shift and rechecks potassium levels. Based on the results, it differentiates between pseudohyperkalemia and true increased potassium levels. It then assesses for conditions like recent beta - blocker or digoxin use, seizures, or crush injuries. The flowchart also guides on obtaining the glomerular filtration rate (GFR) and, depending on GFR results, further investigates for causes such as acute kidney injury (AKI) or chronic kidney disease (CKD), hypoaldosteronism, and specific drug - related causes like NSAIDs, ACE - I, or ARB use. This visual aid is valuable for healthcare providers in diagnosing hyperkalemia.
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