NCLEX-RN Complete Prep Course — Lesson 90: Potassium Imbalances: The Most Tested Electrolyte

Sarah Mitchell covers the electrolyte the NCLEX tests most. She explains the 3.5 to 5.0 range, why insulin, albuterol, and alkalosis lower serum potassium while acidosis raises it, and the causes, symptoms, and ECG changes of hypokalemia and hyperkalemia. She walks through the IV potassium safety rules, the protect-shift-remove sequence for hyperkalemia, high-potassium foods, the salt substitute trap, and pseudohyperkalemia from hemolyzed samples, with two worked exam scenarios.

Lesson 90 of 125 in the NCLEX-RN Complete Prep Course audio course from ExamPrepRise.

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