Hypoaldosteronism electrocardiogram
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief:
Overview
There are no ECG findings associated with [disease name].
OR
An ECG may be helpful in the diagnosis of [disease name]. Findings on an ECG suggestive of/diagnostic of [disease name] include [finding 1], [finding 2], and [finding 3].
Electrocardiogram
- There are no specific ECG findings associated with hypoaldosteronism. However, hypoaldosteronism predisposes to hyperkalemia from decreased potassium excretion.
- Hyperkalemia leads to depression of both SA node and conduction pathways such as AV node and His-Purkinje system. Hyperkalemia can lead to the following ECG abnormalities:
- Findings on an ECG suggestive of/diagnostic of hyperkalemia include:
- Peaked T waves in chest leads
- Widening of the QRS complex (seen with potassium level ≥ 6.5 mEq/L)
- Prolonged QRS interval and conduction blocks such as bundle branch blocks or fascicular blocks (seen with potassium level ≥ 7 mEq/L)
- Ventricular fibrillation, PEA and cardiac arrest (seen with potassium level ≥ 9 mEq/L)