Unstable angina non ST elevation myocardial infarction blood studies

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Unstable Angina
Non-ST Elevation Myocardial Infarction
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Raviteja Guddeti, M.B.B.S. [2]

Overview

Laboratory findings for the diagnosis of unstable angina and NSTEMI include some baseline tests such as a complete blood count, serum electrolytes, serum creatinine and measurement of acute phase reactants.

Blood Studies

Routine blood studies employed in the work up of unstable angina/NSTEMI include:

• Complete blood count - to rule out anemia, which is a potential secondary cause of UA/NSTEMI.
• Electrolyte levels - especially potassium and magnesium, whose levels if reduced can be a potential cause of ventricular arrhythmias.
• Serum creatinine levels - to determine the renal function if coronary revascularization procedure is considered or planned.
• Acute-phase reactant proteins like interleukin 6 and serum amyloid A - have a predictive value in assessing the risk of adverse outcomes in UA.