Which topic is commonly reviewed before drawing blood?

Which topic is commonly reviewed before drawing blood?

• A. Mastectomy
• B. Last time ate or drank
• C. Dialysis shunt
• D. Anticoagulants

Answer: (B)

Checking patient preparation, especially fasting status, is what this item tests. Many lab tests require fasting to avoid food-related changes in blood chemistry, so asking when the patient last ate or drank helps determine whether the sample should be interpreted as fasting or non-fasting. This directly affects the accuracy of tests like lipid panels and glucose, where recent intake can skew results. Topics such as prior mastectomy or a dialysis shunt aren’t routinely used to plan a routine blood draw, while knowing whether a patient is on anticoagulants is important for bleeding risk and some test interpretations. But the most universally relevant pre-draw information is the last time the patient ate or drank.

Checking patient preparation, especially fasting status, is what this item tests. Many lab tests require fasting to avoid food-related changes in blood chemistry, so asking when the patient last ate or drank helps determine whether the sample should be interpreted as fasting or non-fasting. This directly affects the accuracy of tests like lipid panels and glucose, where recent intake can skew results.

Topics such as prior mastectomy or a dialysis shunt aren’t routinely used to plan a routine blood draw, while knowing whether a patient is on anticoagulants is important for bleeding risk and some test interpretations. But the most universally relevant pre-draw information is the last time the patient ate or drank.