The patient has a homocysteine level ordered. What aspects of this test should inform the nurse's care? Select all that apply
A) A 12-hour fast is necessary before drawing the blood sample.
B) Recent inactivity can depress homocysteine levels.
C) Genetic factors can elevate homocysteine levels.
D) A diet low in folic acid elevates homocysteine levels.
E) An ECG should be performed immediately before drawing a sample.
Ans: A, C, D
Feedback:
Genetic factors and a diet low in folic acid, vitamin B6, and vitamin B12 are associated with elevated homocysteine levels. A 12-hour fast is necessary before drawing a blood sample for an accurate serum measurement. An ECG is unnecessary and recent inactivity does not influence the results of the test.
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