A nurse is caring for a client who has a new prescription for atenolol. For which of the following adverse effects should the nurse monitor the client?

a. Apply a warm cloth over the client's eyes: This intervention is not typically indicated for a client who had a craniotomy. It is important to monitor for signs of increased intracranial pressure, but a warm cloth over the eyes is not a standard intervention.

b. Place the client in a supine position: The position of the client after a craniotomy will depend on the surgeon's preference. It is important to follow specific postoperative positioning

instructions, which may or may not include supine positioning.

c. Maintain seizure precautions: Seizure precautions are crucial for clients who have had a craniotomy, as they are at an increased risk of seizures postoperatively.

d. Obtain a prescription for an opioid medication for pain: Pain management is important, but opioid medications may be carefully titrated due to the potential for respiratory depression and other side effects. It is not the primary intervention in the immediate postoperative period.

a. Prothrombin time (PT): Warfarin affects the extrinsic pathway of the coagulation cascade, and PT is the primary diagnostic test used to monitor the therapeutic effect of warfarin. It measures

the time it takes for blood to clot.

b. Platelet count: Platelet count assesses the number of platelets in the blood and is not specifically used to monitor the effect of warfarin.

c. White blood cell count (WBC): WBC count assesses the number of white blood cells and is not specifically used to monitor the effect of warfarin.

d. Activated partial thromboplastin time (aPTT): While aPTT is a valuable test for monitoring the therapeutic effect of heparin, it is not the primary test for warfarin. Warfarin primarily affects the extrinsic pathway, and PT is more appropriate for monitoring its effects.