Atrioventricular block laboratory findings
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Aarti Narayan, M.B.B.S [2], Edzel Lorraine Co, DMD, MD[3]
Overview
Overview
Laboratory studies are especially important to exclude reversible causes of atrioventricular block, for example electrolyte imbalances and medications.
Laboratory Findings
Laboratory Findings
- Serum levels of potassium, sodium and bicarbonates.
- Serum drug levels e.g digitalis.
- If acute myocardial infarction is the cause for current conduction disturbances, then troponin levels should be looked for.
- If thyroid dysfunction, infections or connective tissue disorders are responsible for heart block, then appropriate laboratory studies should follow.
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