A patient is prescribed 250 mL of packed red blood cells to be transfused over 120 minutes. The drop factor on the tubing is 15 gtt/mL. At what rate should the nurse regulate the IV (gtt/min)? (round to the nearest whole number)
The Correct Answer is ["31"]
(Volume to be infused (mL) × Drop factor (gtt/mL)) / Time (min).
For the patient prescribed 250 mL of packed red blood cells with a drop factor of 15 gtt/mL over 120 minutes, the calculation would be (250 mL × 15 gtt/mL) / 120 min, which equals 31.25 gtt/min.
Therefore, the nurse should regulate the IV to 31 gtt/min.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Fine crackles - Fine crackles are short, popping sounds usually heard during inspiration, indicative of fluid in the lungs.
B. Wheezes - Wheezes are continuous, high-pitched musical sounds caused by narrowed airways, often seen in asthma, bronchitis, or other respiratory conditions.
C. Rhonchi - Rhonchi are low-pitched, rattling sounds that occur when air flows through thick mucus or secretions in the larger airways.
D. Vesicular sounds - Vesicular breath sounds are normal lung sounds heard over most lung fields during inspiration. They are not continuous and high-pitched.
Correct Answer is D
Explanation
A. Diltiazem is a calcium channel blocker that can be used to manage conditions like atrial fibrillation or hypertension by slowing the heart rate and reducing blood pressure. However, it may not be the most appropriate drug in the acute setting for heart failure with dyspnea.
B. Nitroglycerine is a vasodilator that helps reduce preload and afterload, which can be beneficial in heart failure. However, it primarily works by reducing the workload on the heart and may help with fluid overload but may not directly address anxiety.
C. Verapamil is another calcium channel blocker that slows the heart rate and reduces the heart's workload. While it may be useful for controlling tachyarrhythmias, it is not the best option for managing acute heart failure with severe dyspnea and anxiety.
D. Morphine is an opioid that can be used in acute heart failure to reduce both anxiety and respiratory distress. It works by reducing the sympathetic nervous system response, decreasing heart rate and blood pressure, and providing a sense of calm, which reduces anxiety. It also reduces preload by venodilation and helps manage severe dyspnea.
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