Which statement accurately describes the relationship between inflammation and zinc serum levels?

Which statement accurately describes the relationship between inflammation and zinc serum levels?

• A. Serum zinc levels are used to assess zinc status, but inflammation can falsely lower levels.
• B. Serum zinc levels are unaffected by inflammation.
• C. Hair zinc concentration is the primary marker of zinc status.
• D. Urinary zinc excretion is the sole indicator of zinc status.

Answer: (A)

Inflammation can distort zinc readings because the body shifts zinc from the bloodstream into storage sites like the liver during the acute phase response. Cytokines stimulate hepatic metallothionein and lower circulating zinc, while zinc-binding proteins such as albumin decrease. This redistribution makes serum zinc appear lower than the person’s true zinc status when inflammation is present. So, serum zinc is a common way to assess zinc status, but inflammation can falsely lower the value, meaning you must interpret it with inflammatory markers (like CRP) and consider rechecking after the inflammatory state subsides. Hair zinc and urinary zinc excretion are not reliable standalone indicators in this context, which is why they’re not preferred markers for zinc status here.

Inflammation can distort zinc readings because the body shifts zinc from the bloodstream into storage sites like the liver during the acute phase response. Cytokines stimulate hepatic metallothionein and lower circulating zinc, while zinc-binding proteins such as albumin decrease. This redistribution makes serum zinc appear lower than the person’s true zinc status when inflammation is present. So, serum zinc is a common way to assess zinc status, but inflammation can falsely lower the value, meaning you must interpret it with inflammatory markers (like CRP) and consider rechecking after the inflammatory state subsides. Hair zinc and urinary zinc excretion are not reliable standalone indicators in this context, which is why they’re not preferred markers for zinc status here.