Lisa, a 29-year-old woman, is diagnosed with a subdural hematoma and is on an IV drip of mannitol at 50 mL/hr. Why is it crucial to maintain this slow infusion rate?
To avoid fluid overload.
To prevent mannitol crystallization.
To avoid hyperglycemia.
To maintain electrolyte balance.
Grace, 67: Chronic sinusitis not responding to medications
The Correct Answer is B
A. Mannitol is an osmotic diuretic used to reduce intracranial pressure. While maintaining an appropriate infusion rate helps prevent fluid overload, it's not the primary reason for the slow infusion rate.
B. Mannitol can crystallize at lower temperatures or higher concentrations, leading to occlusion of the IV line. Maintaining a slow infusion rate reduces the risk of crystallization.
C. Mannitol itself does not typically cause hyperglycemia. Its primary concern regarding infusion is related to crystallization rather than glucose metabolism.
D. Mannitol's impact on electrolyte balance is more related to its osmotic diuretic effect rather than the infusion rate.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Decreased lung compliance doesn't directly enhance gas diffusion; it may impair it due to decreased lung expansion.
B. Decreased lung compliance doesn't necessarily indicate compromised pulmonary blood supply; it's more related to the lung's ability to expand and contract.
C. Decreased lung compliance suggests that ventilation may be impaired because the lungs are less able to expand and contract effectively.
D. Decreased lung compliance means the lungs are stiffer, requiring more effort to breathe, thus increasing the work of breathing.
Correct Answer is ["A","B"]
Explanation
A. Steroid creams can suppress the immune response and alter the results of patch testing, so it's important for Sarah to avoid using them before undergoing the test.
B. Antihistamines can interfere with skin reactions and affect the accuracy of patch test results, so Sarah should avoid taking them before the test.
C. Drinking water does not interfere with patch testing, and Sarah should stay hydrated before the procedure.
D. Eating food does not interfere with patch testing, and Sarah can eat normally before the procedure.
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