Correct Answer: C

Rationale: Corrected Rationale: Dantrolene is the medication of choice to treat malignant hyperthermia, a life-threatening reaction to general anesthesia. It works by inhibiting the release of calcium ions in skeletal muscle cells, preventing muscle contracture and hypermetabolism. Acetaminophen (Choice A) and ibuprofen (Choice B) are not indicated for treating malignant hyperthermia. Diazepam (Choice D) may be used to control muscle spasms but is not the first-line treatment for malignant hyperthermia.

Correct Answer: C

Rationale: The correct answer is C: Administer regular insulin IV infusion. In diabetic ketoacidosis (DKA), the priority intervention is to rapidly decrease blood glucose levels. Administering regular insulin via IV infusion helps in lowering blood glucose effectively and quickly. Choice A, administering a dextrose 50% IV bolus, is incorrect because it would further increase blood sugar levels. Choice B, providing orange juice, is not appropriate for treating DKA as it contains sugar that will elevate blood glucose levels. Choice D, giving oral metformin, is not suitable for immediate blood glucose reduction as it acts over time and is not the first-line treatment for DKA.

Correct Answer: C

Rationale: The client should never double the dose if a dose is missed. This can lead to an overdose, which can cause serious adverse effects. Instead, the client should take the next dose as scheduled or consult the provider for guidance.

Correct Answer: C

Rationale: The correct answer is C. Clear fluid draining from the ear may indicate a cerebrospinal fluid (CSF) leak, which is a serious complication following a head injury. Reporting this finding is crucial as it may require immediate medical intervention to prevent further complications. Choices A, B, and D are not as concerning as a CSF leak. A GCS score of 12 is relatively high, indicating a mild level of consciousness alteration. An edematous bruise on the forehead is a common physical finding after a head injury. Pupils that are 4 mm and reactive to light suggest normal pupillary function.

Correct Answer: C

Rationale: The correct information the nurse should include is that menopausal hormone therapy helps prevent osteoporotic fractures by maintaining bone density. Option A is incorrect as hormone therapy should be taken consistently at the same time each day for optimal effectiveness. Option B is incorrect as menopausal hormone therapy is not primarily aimed at preventing cerebral hemorrhage. Option D is incorrect because taking an extra dose is not recommended if a dose is missed; instead, the missed dose should be taken as soon as remembered, unless it is close to the time for the next dose.