What is the benefit of using an arterial line for titrating IV blood pressure medications?
Reduces the risk of infection associated with repeated blood pressure cuff inflations
Provides direct, accurate, and continuous measurement of blood pressure
Allows the patient to be transferred to a lower acuity of care with less monitoring
Increases the accuracy of non-invasive blood pressure measurements
The Correct Answer is B
A. While arterial lines may reduce cuff-related discomfort, infection risk is not their primary benefit.
B. An arterial line provides direct, accurate, and continuous blood pressure monitoring, which is crucial for titrating IV blood pressure medications safely and effectively.
C. Patients with arterial lines generally require higher acuity monitoring, not lower.
D. Arterial lines do not improve the accuracy of non-invasive blood pressure measurements; they provide invasive, more precise data.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. 9% represents the total surface area of one arm (anterior and posterior combined), not both arms.
B. 12% is not a correct calculation based on the Rule of Nines.
C. 36% represents a much larger area, such as the entire trunk (anterior and posterior), not just the arms.
D. According to the Rule of Nines, each arm accounts for 9% of total body surface area (4.5% anterior + 4.5% posterior). Therefore, both arms (anterior and posterior) equal 18% total
Correct Answer is C
Explanation
A. Infection risk is more related to catheter insertion and maintenance, not balloon inflation time.
B. Inflating the balloon does not affect oxygenation directly.
C. Prolonged inflation of the pulmonary artery catheter balloon can obstruct blood flow and lead to pulmonary artery rupture or infarction. Therefore, it should be inflated only briefly to obtain an accurate wedge pressure reading, then deflated immediately.
D. Cardiac stroke volume index is calculated using other hemodynamic parameters, not wedge pressure specifically.
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