Correct Answer: C

Rationale: The correct answer is C because assessing the patient's pain level is the priority when caring for a patient with a brain tumor about to begin radiation treatments. Pain management is crucial in providing comfort and ensuring the patient's well-being during treatment. Teaching the patient about what to expect and addressing any pain promptly are essential steps in delivering effective care. Padding the side rails (choice A) is important for patient safety, but it is not the priority in this situation. Isolating the patient (choice D) is unnecessary unless there is a specific medical indication. Teaching the patient what to expect (choice B) is important but assessing and managing pain take precedence to ensure the patient's comfort and safety during treatment.

Correct Answer: A

Rationale: Step 1: Phenytoin is an anticonvulsant used to prevent seizures. Step 2: Anticonvulsants are often given before surgery to reduce the risk of seizures during and after the procedure. Step 3: In the context of intracranial surgery, controlling seizures is crucial to prevent complications like increased intracranial pressure. Step 4: Therefore, administering phenytoin before surgery helps in reducing the risk of seizures before and after the procedure. Summary: - Option B (avoid intraoperative complications) is too broad and doesn't directly relate to the use of phenytoin. - Option C (reduce cerebral edema) is not the primary indication for phenytoin in this scenario. - Option D (prevent postoperative vomiting) is not a common reason for administering phenytoin before intracranial surgery.

Correct Answer: D

Rationale: The correct answer is D (3750ml) because the client will receive 1000ml D5W + 500ml normal saline + 1500ml D5NS + 50ml antibiotic every 8 hours x 3 times in 24 hours (50ml x 3 = 150ml). Adding these together gives a total of 1000ml + 500ml + 1500ml + 150ml = 3150ml. Therefore, the client's IV fluid intake for 24 hours will be 3150ml.

Correct Answer: B

Rationale: The correct answer is B because nipple discharge and a breast nodule are classic signs of breast cancer. Nipple discharge can be bloody or clear, and a breast nodule is a lump that feels different from the surrounding tissue. Fever (choice A) is not a common sign of breast cancer. Breast changes during menstruation (choice C) are normal hormonal fluctuations. Fever and erythema of the breast (choice D) are more indicative of an infection rather than breast cancer. Therefore, choice B is the most relevant sign of breast cancer among the options provided.

Correct Answer: A

Rationale: The correct answer is A: Muscle rigidity and spasms. Ketamine can cause muscle rigidity and spasms as a side effect, especially at higher doses. This is a known adverse reaction to Ketamine administration. Monitoring for muscle rigidity and spasms is important to ensure the safety of the client during and after surgery. Incorrect choices: B: Hiccups - Hiccups are not a common side effect of Ketamine administration. C: Extrapyramidal reactions - Ketamine is not known to cause extrapyramidal reactions. D: Respiratory depression - Ketamine typically does not cause respiratory depression, which is more commonly associated with other anesthetics like opioids. Therefore, choice A is the correct answer as it aligns with the known side effects of Ketamine.