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, 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: A

Rationale: It is important to monitor for any new symptoms that may indicate a worsening condition or side effects when taking oral amoxicillin solution. This proactive approach helps in assessing the effectiveness and safety of the medication.

Correct Answer: B

Rationale: Lactulose is a type of laxative that works by preventing the absorption of ammonia in the colon, leading to increased water absorption in the stool and softening of the stool. The therapeutic response to lactulose is indicated by the passage of two to three soft stools per day, showing that the medication is effectively promoting bowel movements.

Correct Answer: D

Rationale: Acetaminophen and diphenhydramine help with sleep without severe side effects.