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.

Answer and Explanation

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.

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Correct Answer is A

Explanation

Choice A reason: Weight gain of 2 pounds (0.91 kg) in one day is a sign of fluid retention, which occurs in SIADH due to excessive secretion of antidiuretic hormone (ADH). ADH causes the kidneys to reabsorb water and reduce urine output, leading to hyponatremia and hypervolemia.

Choice B reason: Fremitus over the chest wall is a sign of increased vibration or air movement in the lungs, which can indicate pneumonia, bronchitis, or pleural effusion. These are not related to SIADH, but may be complications of head injury or fluid overload.

Choice C reason: Serum sodium of 150 mEq/L (150 mmol/L) is a sign of hypernatremia, which is a high level of sodium in the blood. This is the opposite of what happens in SIADH, where sodium levels are low due to dilution by excess water.

Choice D reason: Urine specific gravity of 1.004 is a sign of diluted urine, which indicates low concentration of solutes in the urine. This is also the opposite of what happens in SIADH, where urine is concentrated and has a high specific gravity.

A. Lift and clear drainage from the chest tube. B. Inspect the tube insertion site for leaking. C. Continue to monitor the drainage system. D. Auscultate lungs for unequal breath sounds.

Correct Answer is C

Explanation

Choice A reason: Lifting and clearing drainage from the chest tube is not necessary, as the water level fluctuations indicate that the chest tube is functioning properly and allowing air and fluid to escape from the pleural space.

Choice B reason: Inspecting the tube insertion site for leaking is not indicated, as there is no evidence of air leak in the water-seal chamber. An air leak would cause continuous or intermittent bubbling in the water-seal chamber.

Choice C reason: Continuing to monitor the drainage system is the best action for the nurse to implement, as the water level fluctuations are normal and expected in a water-seal drainage system. The water level should rise during inspiration and fall during expiration, reflecting the changes in intrathoracic pressure.

Choice D reason: Auscultating lungs for unequal breath sounds is not relevant, as it does not address the question of what to do with the water level fluctuations. Unequal breath sounds may indicate a pneumothorax or atelectasis, which are complications of chest trauma or chest tube insertion.

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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?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A client with a closed head injury demonstrates signs of syndrome of inappropriate antidiuretic hormone (SIADH). Which additional finding should the nurse expect to obtain?

Correct Answer is A

Explanation

Correct Answer is C

Explanation

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