A nurse is caring for a client who has a contusion of the brainstem and reports thirst. The client's urinary output was 4,000 mL over the past 24 hours. The nurse should anticipate a prescription for which of the following intravenous (IV) medications?
Epinephrine
Furosemide
Nitroprusside
Desmopressin
The Correct Answer is D
Choice A reason: Epinephrine is primarily used in emergency situations for its vasoconstrictive and bronchodilatory effects, particularly in cases of anaphylaxis or cardiac arrest. It is not typically used to manage symptoms associated with brainstem contusions or to regulate urinary output.
Choice B reason: Furosemide is a loop diuretic commonly prescribed to reduce fluid retention in conditions such as heart failure or renal disease. Given that the client has already produced a large volume of urine (4,000 mL in 24 hours, which is above the normal range of 800 to 2,000 milliliters per day), administering furosemide would not be appropriate as it would likely exacerbate the excessive urinary output.
Choice C reason: Nitroprusside is a potent vasodilator used to treat acute hypertensive crises. It has no role in the management of thirst or regulation of urinary output and is not indicated for the treatment of brainstem contusions.
Choice D reason: Desmopressin is a synthetic analogue of the naturally occurring antidiuretic hormone vasopressin. It is used to treat conditions characterized by excessive urination, such as diabetes insipidus, and to manage polyuria and polydipsia (excessive thirst) following head trauma or surgery in the pituitary region. In the context of a brainstem contusion with a reported high urinary output, desmopressin would be the appropriate medication to prescribe to reduce urine volume and address the client's thirst.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason : Pressing down on the orbital area of the eye is not a recommended method for eliciting a response from a painful stimulus in an unresponsive patient due to the potential for injury to the eye.
Choice B reason : Pressing down on the trapezius muscle is an acceptable method for eliciting a response from a painful stimulus in an unresponsive patient. This technique is less invasive and can be performed safely to assess the patient's level of consciousness or response to pain without causing harm⁸.
Choice C reason : Using a 25-gauge needle is not an appropriate method for eliciting a response from a painful stimulus in an unresponsive patient. This could cause unnecessary harm and is not a standard practice in clinical settings.
Choice D reason : Eliciting a reflex with a reflex hammer is a method used to assess reflexes, not to elicit a response from a painful stimulus in an unresponsive patient. This tool is used to test neurological function and reflex integrity, not to assess pain response.
Correct Answer is C
Explanation
Choice A reason: Digoxin is primarily used to treat atrial fibrillation and heart failure. It is not the first-line medication for sinus bradycardia with ST-segment elevation, as it can further slow down the heart rate.
Choice B reason: Sotalol is a beta-blocker and an antiarrhythmic medication that can be used to treat ventricular arrhythmias and maintain sinus rhythm in atrial fibrillation. However, it is not indicated for sinus bradycardia and could exacerbate the condition.
Choice C reason: Atropine is the medication of choice for symptomatic sinus bradycardia. It works by blocking the action of the vagus nerve on the heart, leading to an increased heart rate. Atropine can quickly reverse the symptoms of bradycardia, such as dizziness and shortness of breath.
Choice D reason: Lidocaine is an antiarrhythmic medication used to treat ventricular arrhythmias. While it can be used in acute settings, it is not the first choice for sinus bradycardia with ST-segment elevation.
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