To evaluate the effectiveness of mannitol, the nurse should monitor:

Sodium level.

Fluid intake.

Heart rate.

Urine output.

Answer and Explanation

The Correct Answer is D

Choice A reason:

Monitoring sodium levels is important when administering mannitol, but it is not the primary indicator of the drug's effectiveness. Mannitol is an osmotic diuretic used to reduce intracranial pressure, and its effectiveness is better assessed by other means.

Choice B reason:

Fluid intake is important to monitor to ensure proper hydration status, but it does not directly indicate the effectiveness of mannitol. The primary focus should be on the patient's output to assess the diuretic effect.

Choice C reason:

Heart rate monitoring is essential for overall patient care but does not directly indicate the effectiveness of mannitol. Changes in heart rate can occur due to various factors and are not specific to mannitol's action.

Choice D reason:

Urine output is the most direct measure of mannitol's effectiveness. As an osmotic diuretic, mannitol promotes diuresis, and increased urine output indicates that the drug is effectively reducing intracranial pressure.

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Correct Answer is C

Explanation

Choice A reason:

A decrease in specific gravity is not the primary therapeutic outcome of desmopressin in the treatment of diabetes insipidus. Desmopressin works by increasing water reabsorption in the kidneys, which leads to a decrease in urine output and an increase in urine concentration, reflected by an increase, not a decrease, in specific gravity.

Choice B reason:

A decrease in the level of consciousness is not an intended therapeutic outcome and would be concerning if observed. Desmopressin aims to control symptoms of diabetes insipidus, not alter the patient’s mental status.

Choice C reason:

A decrease in urine output is the primary therapeutic outcome of desmopressin in a patient with diabetes insipidus. Desmopressin mimics the action of antidiuretic hormone (ADH), leading to increased water reabsorption in the kidneys and reduced urine volume.

Choice D reason:

Desmopressin does not primarily aim to decrease blood pressure. Its main effect is on water reabsorption in the kidneys, thereby reducing urine output. While it can have some impact on blood pressure, this is not its primary therapeutic outcome.

A. Hypoxia not responsive to oxygen therapy B. Elevated lactate levels C. Metabolic alkalosis D. Severe, unexplained electrolyte imbalance

Correct Answer is A

Explanation

Choice A reason:

Hypoxia not responsive to oxygen therapy is a hallmark early sign of ARDS. ARDS is characterized by acute onset of hypoxemia that does not improve with supplemental oxygen. This refractory hypoxemia is due to severe inflammation and increased permeability of the alveolar-capillary barrier, leading to pulmonary edema and impaired gas exchange.

Choice B reason:

Elevated lactate levels can indicate tissue hypoxia and metabolic stress, which are concerning findings in critically ill patients. However, elevated lactate is not specific to ARDS and can be seen in various conditions, including sepsis and shock. It is not the primary early indicator of ARDS.

Choice C reason:

Metabolic alkalosis is not typically associated with ARDS. ARDS usually involves respiratory failure, which may lead to respiratory acidosis. Metabolic alkalosis can occur in other conditions, such as excessive loss of gastric acid or diuretic use, but it is not an early sign of ARDS.

Choice D reason:

Severe, unexplained electrolyte imbalance can occur in critically ill patients but is not specific to ARDS. Electrolyte imbalances can result from various factors, including fluid shifts, renal dysfunction, and medication effects. These imbalances do not serve as an early diagnostic indicator of ARDS.

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To evaluate the effectiveness of mannitol, the nurse should monitor:

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is caring for a patient with a head injury who has developed diabetes insipidus and is receiving desmopressin. The nurse understands the therapeutic outcome is a decrease in:

Correct Answer is C

Explanation

The nurse interprets which finding as an early sign of acute respiratory distress syndrome (ARDS) in a client at risk?

Correct Answer is A

Explanation

The nurse is managing a donor patient six hours prior to the scheduled harvesting of the patient's organs. Which assessment finding requires immediate action by the nurse?

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