Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
AVNRT laboratory findings
Introduction
Overview
Overview
Patients presenting AVNRT must be checked for thyroid function, serum electrolytes, and cardiac markers.
Laboratory Findings
Laboratory Findings
Depending upon the patient’s history and demographics, the following laboratory studies should be considered:[1]
- Thyroid function tests (TFTs) – an overactive thyroid may increase the risk of AVNRT
- Electrolytes – hypokalemia, hypomagnesemia may predispose to AVNRT
- Cardiac markers – if there is a concern that myocardial infarction (a heart attack) has occurred either as a cause or as a result of the AVNRT; this is usually only the case if the patient has experienced ischemic chest pain
References
References
- ↑ Fernando, Harith (2020). “Investigations for the assessment of adult patients presenting to the emergency department with supraventricular tachycardia”. World Journal of Emergency Medicine. 11 (1): 54. doi:10.5847/wjem.j.1920-8642.2020.01.008. ISSN 1920-8642.
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Ramyar Ghandriz MD[2]