In patients with which condition should copper supplementation be reduced or eliminated due to excretion concerns?

In patients with which condition should copper supplementation be reduced or eliminated due to excretion concerns?

• A. Kidney disease
• B. Liver disease
• C. Lung disease
• D. Skin disease

Answer: (B)

Copper is handled primarily by the liver and eliminated via bile. When liver function is impaired, this biliary excretion is reduced, allowing copper to accumulate in the body and potentially cause toxicity. Because supplementation adds more copper that cannot be efficiently cleared, in patients with liver disease it’s appropriate to reduce or stop copper supplementation to prevent buildup. While the kidneys do excrete copper to some extent, the liver is the main organ governing copper elimination, so liver disease poses the strongest excretion-related risk. Conditions like lung or skin disease don’t directly impair copper excretion, so they don’t necessitate changes in copper supplementation based on excretion concerns.

Copper is handled primarily by the liver and eliminated via bile. When liver function is impaired, this biliary excretion is reduced, allowing copper to accumulate in the body and potentially cause toxicity. Because supplementation adds more copper that cannot be efficiently cleared, in patients with liver disease it’s appropriate to reduce or stop copper supplementation to prevent buildup. While the kidneys do excrete copper to some extent, the liver is the main organ governing copper elimination, so liver disease poses the strongest excretion-related risk. Conditions like lung or skin disease don’t directly impair copper excretion, so they don’t necessitate changes in copper supplementation based on excretion concerns.