Zinc Test: Assessing Zinc Levels in the Blood
Zinc is a mineral involved in immune function, wound healing, and many enzyme reactions. A zinc blood test measures the level of zinc in the blood. Zinc deficiency can be caused by poor intake, absorption problems, or excessive losses, and possible signs include poor wound healing, hair loss, and increased susceptibility to infection. Blood zinc may not perfectly reflect total body zinc, so results are interpreted with clinical context. Discuss supplementation with a clinician, because too much zinc can interfere with copper absorption.
Key Takeaways
- Zinc is a mineral involved in immune function, wound healing, and many enzyme reactions.
- A zinc blood test measures the level of zinc in the blood.
- Zinc deficiency can be caused by poor intake, absorption problems, or excessive losses.
- Blood zinc may not perfectly reflect total body zinc, so results are interpreted with clinical context.
- Discuss supplementation with a clinician, because too much zinc can interfere with copper absorption.
Frequently Asked Questions
Do I need to fast for a zinc test?
Fasting may be recommended by some labs. Follow the preparation instructions on your order.
What are symptoms of low zinc?
Possible signs include poor wound healing, hair loss, and increased susceptibility to infection, though many conditions can cause these.
Can I order a zinc test without a doctor?
Yes, zinc testing is available through direct-access labs.
Can zinc and copper be tested together?
Often yes. Because zinc and copper interact, some panels measure both.
Sources
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