Which of the following tests are included in the Cardiac Order Set?

• A. Complete blood count (CBC)
• B. C-reactive protein (CRP)
• C. Thyroid function tests
• D. Magnesium levels

Answer: (A)

In the context of a Cardiac Order Set, it is essential to include tests that are directly relevant to assessing cardiac conditions and identifying potential heart problems. The Complete Blood Count (CBC) is commonly included because it provides important information about the patient's overall health and can indicate conditions such as anemia or infection, which may have implications for cardiac function.

For evaluating cardiac issues, the CBC can inform the clinician about the patient's white blood cell count and hemoglobin levels. Anemia can exacerbate cardiac problems by increasing the workload on the heart, and elevated white blood cell counts can indicate an inflammatory or infectious process that may also impact cardiac health.

While the other tests listed may be useful in specific diagnoses or broader health assessments, they are not typically part of a standard Cardiac Order Set. C-reactive protein (CRP) is associated with inflammation and may be used in certain cardiac risk assessments, but it is not as universally performed in the acute evaluation of chest pain or cardiac issues as a CBC. Thyroid function tests are relevant in the context of metabolic disorders but not routinely ordered in an immediate cardiac workup. Magnesium levels are important in evaluating electrolyte imbalances that can affect heart rhythm but are not included as a standard part of every cardiac evaluation.