ATI Pharmacology Test Bank

Correct Answer: A

Rationale: In this scenario, the client is exhibiting signs of anaphylaxis, a severe allergic reaction. The priority action for the nurse is to stop the infusion immediately to prevent further administration of the allergen and worsening symptoms. Once the infusion is stopped, the nurse can then proceed with additional interventions, such as calling the provider, assessing the client's respiratory status, and providing appropriate care as needed.

Correct Answer: D

Rationale: During a chest pain episode, the client should take one nitroglycerin tablet sublingually every 5 minutes up to a total of three doses. If chest pain persists after three doses, emergency medical attention should be sought. Nitroglycerin should not be swallowed but allowed to dissolve under the tongue for rapid absorption. Storing the medication in a cool, dry place helps maintain its effectiveness.

Correct Answer: C

Rationale: When two inhaled medications are prescribed, waiting 5 minutes between medications allows for optimal absorption and effectiveness of each medication. This ensures that each medication can work properly without interference from the other, improving the client's respiratory condition.

Correct Answer: A

Rationale: The correct answer is A because warfarin takes several days to reach a therapeutic level and exert its full anticoagulant effect. During this time, the IV heparin is continued to prevent clotting until the warfarin is effective. Both medications are used together temporarily for this reason. Discontinuing heparin prematurely can increase the risk of clot formation. Therefore, the nurse should explain to the client that the IV heparin will be continued until the warfarin reaches a therapeutic level.

Correct Answer: B

Rationale: The correct instruction for a client prescribed Trimethoprim-Sulfamethoxazole is to increase fluid intake. This helps prevent crystalluria and kidney stones, which are potential adverse effects of this medication. Adequate hydration is essential to reduce the risk of these complications.