After cardiac surgery, a client's blood pressure measures 126/80 mm Hg. Nurse Katrina determines that mean arterial pressure (MAP) is which of the following?

Correct Answer: C

Rationale: The correct answer is C: 95 mm Hg. Mean Arterial Pressure (MAP) is calculated using the formula MAP = ((2 x diastolic) + systolic) / 3. Plugging in the values from the blood pressure measurement (diastolic 80, systolic 126), we get MAP = ((2 x 80) + 126) / 3 = (160 + 126) / 3 = 286 / 3 = 95 mm Hg. This calculation provides an accurate representation of the average pressure in the arteries during one cardiac cycle. The other choices are incorrect because they do not align with the correct formula or calculation for determining MAP.

Correct Answer: D

Rationale: Rationale: Performing capillary glucose testing every 4 hours is crucial preoperatively for a transsphenoidal hypophysectomy because the surgery can cause alterations in glucose levels due to stress response and potential pituitary dysfunction. Monitoring glucose levels helps prevent complications like hypoglycemia or hyperglycemia. Testing for ketones in the urine (A) is not specific to glucose levels. Testing urine specific gravity (B) is not as relevant for monitoring glucose levels. Checking temperature every 4 hours (C) is important but not directly related to potential complications from the surgery.

Correct Answer: D

Rationale: The correct answer is D: Fat embolism. In this scenario, a 67-year-old client with acute shortness of breath and hypoxia after a right femur fracture is likely experiencing a fat embolism. Fat embolism occurs when fat globules enter the bloodstream, often following long bone fractures. These fat globules can travel to the lungs and cause respiratory distress. Asthma attack (A), atelectasis (B), and bronchitis (C) are less likely in this case as they do not typically present acutely following a femur fracture.

Correct Answer: D

Rationale: The correct answer is D because putting on the elastic stockings before getting out of bed in the morning helps prevent blood pooling in the lower extremities. This statement indicates the client understands the importance of wearing the stockings to promote circulation. Choice A is incorrect because the client should follow the prescribed duration for wearing the stockings, not wait for the physician's instruction to remove them. Choice B is incorrect as wearing stockings while sleeping may not be necessary unless specified by the healthcare provider. Choice C is incorrect as removing the stockings for a prolonged period every four hours may not be recommended as consistent wear is typically more beneficial for circulation.

Correct Answer: B

Rationale: The correct answer is B: "I will call my doctor if Stacy has persistent vomiting and diarrhea". Rationale: 1. Persistent vomiting and diarrhea are common side effects of chemotherapy that can lead to dehydration and other complications. 2. Contacting the physician in this case shows understanding of the need for immediate medical attention. 3. Prompt communication with the doctor can help in managing these side effects effectively and prevent further complications. Summary: A: Difficulty in sleeping is a common side effect of chemotherapy but does not require immediate medical attention. C: Irritability and unhappiness are subjective symptoms and may not indicate a serious medical issue. D: Continued hair loss is a known side effect of chemotherapy but does not require immediate medical attention unless excessive.