Correct Answer: A

Rationale: Nystagmus (involuntary eye movements) is a common manifestation of multiple sclerosis due to demyelination affecting the optic nerve or cerebellar pathways, impacting vision and coordination.
Choice B is incorrect because multiple sclerosis typically causes hyperactive deep tendon reflexes due to upper motor neuron involvement, not hypoactive reflexes.
Choice C is incorrect because persistent nausea is not a hallmark symptom of multiple sclerosis; it may occur secondary to medications or other conditions.
Choice D is incorrect because fever is not typical unless the client has an infection or is experiencing a pseudoexacerbation triggered by heat.

Correct Answer: A

Rationale: This instruction will help the client to prevent venous stasis and thrombosis, which are common postoperative complications. Range-of-motion exercises promote blood circulation and prevent muscle atrophy and contractures.
Choice B is wrong because using an incentive spirometer every 4 hours is not related to promoting circulation, but rather to improving lung expansion and preventing atelectasis and pneumonia. Using an incentive spirometer is also important for postoperative clients, but it does not address the question.
Choice C is wrong because remaining on bed rest for 24 hours following the procedure is the opposite of promoting circulation. Bed rest increases the risk of venous stasis, thrombosis, and pulmonary embolism. Postoperative clients should be encouraged to ambulate as soon as possible, unless contraindicated.
Choice D is wrong because placing a pillow under your knees while in bed impairs circulation and increases the risk of thrombosis. Placing a pillow under the knees can cause pressure on the popliteal veins and reduce blood flow. Postoperative clients should avoid this position and keep their legs in a neutral or slightly elevated position.

Correct Answer: A

Rationale: Administering albuterol via nebulizer is the first action to take during an acute asthma attack, as it rapidly relaxes bronchial smooth muscles, relieving bronchospasm and improving airflow.
Choice B is incorrect because a supine position can worsen breathing; a semi-Fowler's or upright position is preferred to facilitate lung expansion.
Choice C is incorrect because obtaining a peak expiratory flow rate is useful for monitoring but is not the priority during an acute attack.
Choice D is incorrect because administering oxygen is secondary to bronchodilator therapy unless the client has severe hypoxia (e.g., oxygen saturation <90%).

Correct Answer: C

Rationale: Reporting weight gain is important with fluoxetine, as it can affect weight. It's taken in the morning, tyramine is unrelated, and relief takes weeks.

Correct Answer: A

Rationale: Taking sumatriptan at the onset of migraine symptoms is critical, as it is most effective when used early to abort the migraine by constricting cranial blood vessels and blocking pain pathways.
Choice B is incorrect because sumatriptan can be taken with or without food; food does not significantly affect its absorption.
Choice C is incorrect because drowsiness is not a common side effect; sumatriptan may cause dizziness or tingling, but alertness is usually unaffected.
Choice D is incorrect because sumatriptan is used for acute migraine treatment, not daily for prevention, which requires other medications like propranolol.