A nurse is caring for a client who has diabetes insipidus and is receiving desmopressin by intermittent IV bolus. Which of the following manifestations should indicate to the nurse a therapeutic response to the medication?
Increase in serum glucose
Decrease in blood pressure
Decrease in urine output
Increase in WBC count
The Correct Answer is C
Choice A Reason:
Increase in serum glucose is incorrect. Desmopressin, which is a synthetic form of vasopressin, primarily affects water reabsorption in the kidneys and doesn't directly impact glucose levels. Therefore, an increase in serum glucose wouldn't be an expected therapeutic response to desmopressin for diabetes insipidus.
Choice B Reason:
Decrease in blood pressure is incorrect. Desmopressin is primarily used for its antidiuretic effect, concentrating urine by increasing water reabsorption in the kidneys. It typically doesn't have a significant impact on blood pressure. Therefore, a decrease in blood pressure wouldn't typically be an anticipated therapeutic response to desmopressin in this context.
Choice C Reason:
Decrease in urine output is correct. Desmopressin is a synthetic form of vasopressin (antidiuretic hormone) used to treat diabetes insipidus, a condition characterized by excessive urination and extreme thirst due to the inability to concentrate urine. The primary goal of desmopressin is to reduce urine output by increasing water reabsorption in the kidneys, thereby decreasing excessive urination. Therefore, a decrease in urine output would indicate a therapeutic response to the medication in this context.
Choice D Reason:
Increase in WBC count is incorrect. Desmopressin's action is centered on affecting kidney function by regulating water reabsorption and does not involve changes in white blood cell count. Consequently, an increase in WBC count wouldn't be an expected therapeutic response to desmopressin for diabetes insipidus.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A Reason:
Weight gain of 0.7 kg (1.5 lb) in 24 hours is not recommendable. While sudden weight gain can indicate fluid retention, it is not a direct contraindication for administering digoxin. However, it might indicate worsening heart failure, which needs attention, but it doesn't specifically necessitate withholding digoxin.
Choice B Reason:
Urinary output 30 mL/hr is not recommendable. A low urinary output might indicate decreased kidney perfusion or renal issues. While monitoring urinary output is important, it is not a direct reason to withhold digoxin unless it's coupled with severe renal impairment or an acute kidney injury.
For a client receiving digoxin, certain findings would warrant withholding the medication due to potential complications. Among the options provided:
Choice C Reason:
Pulse rate 56/min is the correct recommendation. A low pulse rate (bradycardia), especially below 60 beats per minute, is a reason to withhold digoxin. Digoxin can further decrease the heart rate, potentially leading to excessive bradycardia or heart block. The nurse should hold the medication and consult with the healthcare provider to determine the appropriate action.
Choice D Reason:
BP 160/90 mm Hg is not recommendable. Elevated blood pressure alone is not a direct contraindication for administering digoxin to a patient with heart failure. Digoxin is not primarily used for controlling blood pressure; its use is more focused on managing heart rate and contractility in heart failure patients.
Correct Answer is B
Explanation
Choice A Reason:
Oral is incorrect. Epoetin alfa is not typically administered orally because it would be broken down by digestive enzymes and not absorbed effectively from the gastrointestinal tract.
Choice B Reason:
Intravenous is correct. Epoetin alfa is a medication used to stimulate red blood cell production and is commonly administered intravenously. This route allows for rapid and efficient absorption of the medication into the bloodstream, enabling it to exert its effects effectively.
Choice C Reason:
Inhalation is incorrect. Inhalation is not a route used for epoetin alfa. This medication is intended for systemic effects rather than local effects in the respiratory system.
Choice D Reason:
Transdermal is incorrect. Transdermal administration involves absorption through the skin and is not suitable for epoetin alfa, which needs rapid and direct access to the bloodstream for its action on red blood cell production.
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