The nurse receives an order to draw a peak level on a patient prescribed Gentamicin via Intravenous (IV) infusion. When is the best time for the nurse to draw this peak level?
30 minutes before starting the infusion.
30 minutes after infusion is complete
Immediately before the next dose of Gentamicin
1 hour after infusion is complete
The Correct Answer is B
Gentamicin is an antibiotic that is usually administered via IV infusion. The peak level is the highest concentration of the medication in the bloodstream, and it is important to monitor it to ensure therapeutic levels are achieved without reaching toxic levels.
Drawing the peak level 30 minutes after the infusion is complete allows enough time for the medication to distribute throughout the body and reach its peak concentration. This timing provides an accurate representation of the highest drug concentration in the bloodstream. 30 minutes before starting the infusion: Drawing the peak level before starting the infusion would not accurately reflect the peak concentration of the medication in the bloodstream. Immediately before the next dose of Gentamicin: Drawing the peak level immediately before the next dose would not provide an accurate assessment of the highest drug concentration, as the levels would have started to decrease due to elimination.
1 hour after infusion is complete: Waiting for 1 hour after the infusion is complete may result in missing the actual peak concentration of the medication in the bloodstream, as it may have already started to decline.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Loop diuretics, such as furosemide, are known to promote diuresis (increased urine output) and can cause electrolyte imbalances, including low potassium (hypokalemia). The patient's statement about eating a diet rich in potassium-containing foods like potatoes, bananas, avocadoes, strawberries, and spinach is incorrect in this context. These foods are indeed good sources of potassium, but when taking loop diuretics, it is necessary to monitor and potentially restrict potassium intake to prevent excessive potassium levels.
"I will weigh myself daily and report to my physician if I gain more than 3 lbs in 1 day." This statement reflects the patient's understanding of the need to monitor their weight daily as a means of assessing fluid balance. Rapid weight gain may indicate fluid retention, which should be reported to the physician.
"This medication can cause dehydration, so I will stay hydrated by consuming at least 2 L or more of fluid per day." This statement demonstrates awareness of the potential for dehydration when taking loop diuretics and the importance of staying adequately hydrated by consuming an appropriate amount of fluids.
"I will change position slowly because I can become dizzy easily while taking this medication." This statement reflects the understanding that loop diuretics can cause orthostatic hypotension,
leading to dizziness upon sudden changes in position. Taking precautions and changing position slowly can help prevent falls and related injuries.

Correct Answer is C
Explanation
A low-pressure ventilator alarm indicates a potential issue with the delivery of adequate air or pressure from the ventilator. The pulse oximetry reading of 85% suggests that the client is not receiving sufficient oxygenation.
Providing ventilation with a bag-valve-mask device allows the nurse to manually assist the client's breathing and ensure proper oxygenation and ventilation while troubleshooting the ventilator alarm. By manually ventilating the client, the nurse can help maintain oxygenation and prevent further hypoxemia until the underlying cause of the alarm can be identified and resolved.
Suctioning the client's endotracheal tube, adding air to the pilot balloon, or placing a bit block in the client's mouth may be appropriate interventions in specific situations, but they are not the immediate priority in this case. The primary concern is to address the low oxygen saturation and ensure adequate ventilation.
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