Which instruction should be taught to a client taking isoniazid (INH) to minimize hepatic damage?

Which instruction should be taught to a client taking isoniazid (INH) to minimize hepatic damage?

• A. Urine and saliva may be reddish-orange in colour.
• B. Avoid alcohol to limit the danger of hepatic damage.
• C. Clients will need to have weekly chest X-rays.
• D. Take with an antacid to reduce gastric distress.

Answer: (B)

Isoniazid can cause liver toxicity, and alcohol makes that risk much worse. The best instruction to minimize hepatic damage is to avoid or severely limit alcohol while taking isoniazid. This helps prevent additional strain on the liver as the drug is processed. It’s also important to monitor for signs of liver trouble (like fatigue, nausea, abdominal pain, jaundice) and report them promptly, since early detection can prevent more serious injury. The other options don’t reduce liver risk: reddish-orange urine or saliva is more associated with rifampin; weekly chest X-rays aren’t a preventive measure for hepatic injury; taking isoniazid with an antacid doesn’t address liver protection and can affect absorption.

Isoniazid can cause liver toxicity, and alcohol makes that risk much worse. The best instruction to minimize hepatic damage is to avoid or severely limit alcohol while taking isoniazid. This helps prevent additional strain on the liver as the drug is processed. It’s also important to monitor for signs of liver trouble (like fatigue, nausea, abdominal pain, jaundice) and report them promptly, since early detection can prevent more serious injury. The other options don’t reduce liver risk: reddish-orange urine or saliva is more associated with rifampin; weekly chest X-rays aren’t a preventive measure for hepatic injury; taking isoniazid with an antacid doesn’t address liver protection and can affect absorption.