Correct Answer: B

Rationale: The correct answer is B, liver toxicity. Pioglitazone is known to cause liver toxicity, so it is essential for the nurse to monitor the client's liver function while on this medication. Monitoring liver function tests can help detect any signs of liver damage early, allowing for timely intervention to prevent serious complications.

Correct Answer: D

Rationale: The correct answer is to check the stool for occult blood when caring for a client receiving aspirin 600mg po QID. Aspirin can lead to gastrointestinal bleeding, and checking for occult blood in the stool is essential to monitor for this serious adverse effect. Monitoring temperature, assessing pain, and checking for dyspepsia and nausea are important interventions but not as critical as monitoring for gastrointestinal bleeding when a client is receiving aspirin.

Correct Answer: A

Rationale: The correct answer is A: Weight gain. Valproate is known to cause weight gain as a common adverse effect. It is important for the nurse to monitor the client's weight regularly while on this medication to detect and address any changes that may occur.

Correct Answer: D

Rationale: Administering an additional dose of naloxone should be the first action taken by the nurse in this scenario. Naloxone is an opioid antagonist used to reverse the effects of opioid overdose. If the client's level of consciousness deteriorates after the initial dose, administering another dose can help further reverse the overdose effects and improve the client's condition. Once the additional naloxone dose is given, the nurse can then proceed to assess the client's response and consider other interventions as needed.

Correct Answer: B

Rationale: The correct answer is B: Dry cough. Losartan, an angiotensin II receptor blocker, can lead to a dry cough as a potential side effect. This occurs due to the drug's effect on the bradykinin pathway in the lungs. Monitoring for a dry cough is essential as it may indicate the need for further evaluation or medication adjustment to manage this adverse reaction.