Blood for iron studies:
a. Should be drawn fasting in the morning
b. Should be drawn following a standard meal rich in iron
c. May be drawn at any time of the day
d. Should be drawn in the morning with no fasting necessary
ANS: A
Iron exhibits a diurnal variation, with levels dropping during the day; therefore it should be drawn early in the morning. Iron absorbed from a meal can falsely elevate serum iron, so a fasting specimen should be drawn.
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Procedure Posting
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