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What is preparation like for iron blood tests?

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Some tests require you to stop eating about 12 hours before you give blood. Your health care provider will take a sample from a vein in your arm and send it to a lab. The lab results will show whether iron levels in your blood are too high or too low.

From: What is an Iron Blood Test? WebMD Medical Reference

SOURCES:

American Association for Clinical Chemistry: "Iron Tests: The Test."

American Association for Clinical Chemistry: "Iron Tests: The Test Sample."

Mayo Clinic: "Anemia: Overview."

National Heart, Lung, and Blood Institute: "How is Iron-Deficiency Anemia Diagnosed?"

National Institutes of Health, Office of Dietary Supplements: "Iron."

Nemours Foundation: "Blood Test: Ferritin (Iron): What It Is."

Reviewed by Jennifer Robinson on December 19, 2018

SOURCES:

American Association for Clinical Chemistry: "Iron Tests: The Test."

American Association for Clinical Chemistry: "Iron Tests: The Test Sample."

Mayo Clinic: "Anemia: Overview."

National Heart, Lung, and Blood Institute: "How is Iron-Deficiency Anemia Diagnosed?"

National Institutes of Health, Office of Dietary Supplements: "Iron."

Nemours Foundation: "Blood Test: Ferritin (Iron): What It Is."

Reviewed by Jennifer Robinson on December 19, 2018

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What can cause a lack of iron?

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