
⚡ Hyperkalemia: ECG Changes, Emergency Management & USMLE Pearls
Master hyperkalemia for the USMLE with this high-yield guide. Learn about ECG changes, clinical signs, emergency treatment, and key exam tips with a KOTC science focus.

Hyperkalemia: Causes, ECG Changes, and Management
Hyperkalemia (serum K⁺ >5.0 mEq/L) is a life-threatening electrolyte imbalance commonly tested on the USMLE. It affects cardiac conduction, leading to fatal arrhythmias if untreated. Understanding its causes, ECG findings, and emergency management is crucial for both the exam and clinical practice.