Correct Answer: B

Rationale: The correct answer is B: Do not stop medication abruptly. Abruptly stopping propranolol can lead to rebound hypertension and potentially life-threatening complications. The nurse should emphasize the importance of gradual tapering under medical supervision to avoid adverse effects. A: Having potassium levels checked is not directly related to propranolol use for hypertension management. C: Changes in appetite are not specific to propranolol use and may not be a significant concern compared to abrupt cessation of the medication. D: Resuming usual daily activities is important but not as crucial as the correct instruction to avoid abrupt discontinuation of propranolol.

Correct Answer: D

Rationale: The correct answer is D, "Ineffective thermoregulation related to dehydration." The client's high serum glucose level of 618mg/dl indicates severe hyperglycemia, leading to dehydration. The client's hot, dry skin and elevated temperature can be signs of dehydration, impacting the body's ability to regulate temperature. Dehydration can also affect other vital signs, contributing to the elevated heart rate and low blood pressure. Addressing ineffective thermoregulation is crucial as it can lead to further complications. Choices A, B, and C are not the highest priority because addressing dehydration and ineffective thermoregulation takes precedence due to the immediate risk of complications such as heatstroke or hypothermia. Deficient volume, decreased cardiac output, and imbalanced nutrition are important but not as urgent in this scenario.

Correct Answer: D

Rationale: The correct answer is D because the nurse's signature indicates that they verified the patient's signature on the consent form. This step ensures that the patient has signed the document willingly. Choice A is incorrect because the nurse doesn't obtain informed consent, that's the responsibility of the physician. Choice B is incorrect because nurses do not provide informed consent. Choice C is incorrect as the nurse witnessing the signature doesn't imply they answered all surgical procedure questions.

Correct Answer: A

Rationale: The correct answer is A: Miosis, partial eyelid ptosis, and anhidrosis on the affected side of the face. This is indicative of Horner's syndrome, which occurs due to the disruption of sympathetic nerve supply. Miosis (constricted pupil), ptosis (drooping eyelid), and anhidrosis (lack of sweating) are classic signs of Horner's syndrome. These symptoms occur when the tumor invades the ribs and affects the sympathetic nerve ganglia. Summary of other choices: B: Chest pain, dyspnea, cough, weight loss, and fever are more commonly associated with lung cancer but not specific to Horner's syndrome. C: Arm and shoulder pain and atrophy of arm and hand muscles are not typical signs of Horner's syndrome. D: Hoarseness and dysphagia are more common symptoms of compression of the recurrent laryngeal nerve, not Horner's syndrome.

Correct Answer: C

Rationale: The correct answer is C: Pulmonary artery obstructive pressure (PACP). The multilumen pulmonary artery catheter measures hemodynamic pressures in the heart. When the catheter tip enters small branches of the pulmonary artery, it can assess Central Venous Pressure (A), Pulmonary Artery Capillary Pressure (B), and Pulmonary Artery Wedge Pressure (D). Pulmonary artery obstructive pressure is not a standard hemodynamic measurement and is not assessed using this catheter. It is crucial to differentiate between the various pressures measured to accurately assess the patient's cardiac status.