A patient experiences residual effects following an acute attack of Ménière's disease and receives a new prescription for an antihistamine. Which assessment finding indicates that the medication is effective?
Headache rated at 0 on 0 to 10 scale.
Oxygen saturation level of 99%.
Ambulates easily without vertigo.
Blood pressure of 120/80 mm Hg.
The Correct Answer is C
Choice A: A headache rated at 0 on 0 to 10 scale is not a specific indicator of the effectiveness of an antihistamine. A headache may be caused by other factors, such as dehydration, stress, or sinus congestion.
Choice B: Oxygen saturation level of 99% is a normal finding and does not reflect the effect of an antihistamine. Oxygen saturation measures the amount of oxygen in the blood and can be affected by respiratory conditions, altitude, or smoking.
Choice C: Ambulating easily without vertigo is a sign that the antihistamine is effective. Vertigo is a common symptom of Ménière's disease, which is a disorder of the inner ear that causes episodes of spinning sensation, hearing loss, and tinnitus. Antihistamines can help reduce the fluid buildup in the inner ear and relieve vertigo.
Choice D: Blood pressure of 120/80 mm Hg is a normal finding and does not indicate the effect of an antihistamine. Blood pressure measures the force of blood against the walls of the arteries and can be influenced by factors such as heart rate, cardiac output, blood volume, and vascular resistance.

Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason: This is incorrect because sleeping with the head ofthe bed flat can worsen OSA by allowing gravity to pull down on the soft tissues ofthe throat and obstructing airflow.
Choice B reason: This is incorrect because taking sedatives prior to sleep can also worsen OSA by relaxing the muscles ofthe upper airway and increasing airway collapse.
Choice C reason: This is correct because beginning a weight loss program can help reduce OSA by decreasing fat deposits around the neck and chest that can compress and narrow the airway.
Choice D reason: This is incorrect because drinking 1to 2 glasses of wine at bedtime can have similar effects as sedatives, such as relaxing the muscles ofthe upper airway and impairing the respiratory drive.
Correct Answer is A
Explanation
Choice A reason: This is correct because performing a bedside pregnancy test is the intervention that should be implemented immediately by the nurse. This is to confirm or rule out pregnancy and inform the surgical team of any possible risks or complications that may affect the client or the fetus.

Choice B reason: This is incorrect because continuing with surgery as scheduled is not an appropriate intervention without verifying the pregnancy status of the client. Surgery may pose serious threats to both maternal and fetal health, such as bleeding, infection, anesthesia complications, or miscarriage.
Choice C reason: This is incorrect because calculating gestation from last menstrual cycle is not an accurate or reliable method of determining pregnancy. The menstrual cycle can vary widely among women and may be affected by various factors such as stress, illness, or medication.
Choice D reason: This is incorrect because notifying the surgical team to cancel the surgery is not a necessary intervention unless pregnancy is confirmed. Appendicitis is a medical emergency that requires prompt surgical treatment to prevent rupture, peritonitis, or sepsis.
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