When interpreting zinc levels, which condition can mislead interpretation?

When interpreting zinc levels, which condition can mislead interpretation?

• A. Hypoalbuminemia
• B. Hyperglycemia
• C. Anemia
• D. Leukocytosis

Answer: (A)

Zinc in the blood is largely carried by albumin, so the serum zinc level reflects both total body zinc and how much zinc is bound to albumin. When albumin is low (hypoalbuminemia), there’s less albumin available to bind zinc, which can reduce the amount of zinc measured in the plasma. This can make a person appear zinc deficient or have lower zinc stores than they actually do, even if total body zinc is adequate. So hypoalbuminemia can mislead interpretation of zinc status. The other conditions don’t have as direct an impact on the zinc–albumin relationship, so they’re less likely to cause this specific misinterpretation.

Zinc in the blood is largely carried by albumin, so the serum zinc level reflects both total body zinc and how much zinc is bound to albumin. When albumin is low (hypoalbuminemia), there’s less albumin available to bind zinc, which can reduce the amount of zinc measured in the plasma. This can make a person appear zinc deficient or have lower zinc stores than they actually do, even if total body zinc is adequate. So hypoalbuminemia can mislead interpretation of zinc status. The other conditions don’t have as direct an impact on the zinc–albumin relationship, so they’re less likely to cause this specific misinterpretation.