The client is receiving a very expensive medication. The client asks the nurse why the medicine is so expensive. What is the best response by the nurse?

Correct Answer: C

Rationale: High drug costs stem from research, development, and production expenses-years of trials and manufacturing-requiring companies to recover investments, a factual explanation. Insurance coverage sidesteps the question. Advertising adds cost but isn't primary. Accountability is opinion, not answer. Development costs provide a clear, neutral reason, educating the client on pharmaceutical economics.

Correct Answer: D

Rationale: Packed red blood cells contain primarily red blood cells and are used to increase the patient's oxygen-carrying capacity. After a severe auto accident, the patient may experience blood loss and require a transfusion of packed red blood cells to improve oxygen delivery to tissues and organs. While other blood products like whole blood or fresh frozen plasma contain additional components (such as plasma proteins or clotting factors), packed red blood cells are specifically indicated to address oxygen-carrying needs in cases of significant blood loss or anemia. Therefore, in the trauma unit for a patient following a severe auto accident, the nurse should prepare to administer packed red blood cells.

Correct Answer: D

Rationale: Adalimumab, a tumor necrosis factor (TNF) inhibitor, is associated with weight gain as a potential side effect. This may occur due to fluid retention or changes in metabolism. Numbness, constipation, and urinary retention are not commonly linked to adalimumab. Weight gain is a significant consideration for patients, as it can impact their overall health and adherence to treatment. Monitoring for this side effect is important, and dietary or lifestyle interventions may be necessary to manage it effectively.

Correct Answer: B

Rationale: Herbals (e.g., St. John's wort) transfer to breast milk, risking infant effects (e.g., sedation), so avoiding them is safest, per pharmacokinetics. Labels lack consistent breastfeeding data. ‘Natural' doesn't mean safe-some are toxic. Timing doesn't eliminate transfer. Transfer risk advises caution, protecting the baby.

Correct Answer: A

Rationale: Methotrexate targets rapidly dividing cells. Buccal mucosa , with high turnover, is most vulnerable, causing mucositis. Bones (B, D) and skin are less affected. Teeth (E) aren't primary. This toxicity reflects methotrexate's antimetabolite action in ALL.