Bradycardia laboratory findings
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief:
Overview
Some patients with bradycardia may have elevated/reduced concentration of electrolyte levels, glucose level, calcium level, magnesium level, thyroid function tests, toxicologic screen and troponin.
2018 ACC/AHA/HRS Guideline on the Evaluation and Management of Patients With Bradycardia and Cardiac Conduction Delay: A Report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines and the Heart Rhythm Society[1]
Recommendation for Laboratory Testing in Patients With Documented or Suspected Bradycardia or Conduction Disorders
| Class IIa |
| 1.In patients with bradycardia, laboratory tests (e.g., thyroid function tests, Lyme titer, potassium, pH) based on clinical suspicion for a potential underlying cause are reasonable.(Level of Evidence: C-LD) |
Laboratory findings
Laboratory findings consistent with the diagnosis of bradycardia include:[2]
- Electrolyte levels
- Glucose level
- Calcium level
- Magnesium level
- Thyroid function tests
- Toxicologic screen
- Troponin
References
- ↑ Kusumoto FM, Schoenfeld MH, Barrett C, Edgerton JR, Ellenbogen KA, Gold MR; et al. (2019). “2018 ACC/AHA/HRS Guideline on the Evaluation and Management of Patients With Bradycardia and Cardiac Conduction Delay: A Report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines and the Heart Rhythm Society”. Circulation. 140 (8): e382–e482. doi:10.1161/CIR.0000000000000628. PMID 30586772.
- ↑ “StatPearls”. 2020. PMID 29630253.
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