The nurse is counseling a patient whose lab tests include intrinsic factor.The patient's response to which of the following questions should be documented to ensure accurate test results? A)"Have you been fasting for the past 4 hours?" B)"Have you had any vitamin B₁₂ in the past 2 days?" C)"When was your last menstrual cycle?" D)"What is your current weight?"

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Quizplus · Accepted Answer

The presence of intrinsic factor is measured to determine if a patient is producing enough of the protein to properly absorb vitamin B12. Vitamin supplements containing vitamin B12 could interfere with the accuracy of the test. Therefore, asking if the patient has had vitamin B12 in the past 2 days is the most relevant question to ensure accurate test results.

The Nurse Is Counseling a Patient Whose Lab Tests Include