A nurse is preparing to administer dopamine 5 mcg/kg/min by continuous IV infusion to a client who weighs 220 lb. Available is 400 mg of dopamine in 250 mL of 0.9% sodium chloride. The nurse should set the IV pump to deliver how many mi/hr? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["18.8"]
To calculate the rate at which the IV pump should deliver dopamine, we can follow these steps:
Step 1: Convert the weight of the client from pounds to kilograms.
220 lb ÷ 2.2 = 100 kg (rounded to the nearest whole number)
Step 2: Calculate the total dose of dopamine per minute.
5 mcg/kg/min × 100 kg = 500 mcg/min
Step 3: Convert the dose from micrograms (mcg) to milligrams (mg).
500 mcg/min ÷ 1000 = 0.5 mg/min
Step 4: Determine the infusion rate in milliliters per hour (mL/hr).
The total volume of the solution is 250 mL.
The total dose of dopamine is 400 mg.
So, the infusion rate is (0.5 mg/min ÷ 400 mg) × 250 mL = 0.3125 mL/min.
Step 5: Convert the infusion rate from mL/min to mL/hr.
0.3125 mL/min × 60 min/hr = 18.75 mL/hr (rounded to the nearest tenth).
Therefore, the nurse should set the IV pump to deliver 18.8 mL/hr (rounded to the nearest tenth).
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Lorazepam 2.5mg PO qhs before bed: This transcription suggests a fixed dose to be taken before bed (qhs = every bedtime), which does not align with the "as needed" or PRN (pro re nata) instruction for anxiety.
B. Lorazepam 2.5 mg PO QD at hs: This suggests that the medication should be taken once daily (QD) at bedtime (hs = at hour of sleep), which again is not appropriate for as-needed (PRN) use in anxiety.
C. Lorazepam 2.5 mg PO every 8 hours as needed for anxiety: This transcription correctly indicates that the lorazepam is to be taken as needed for anxiety, with a dose of 2.5 mg. However, this also suggests it can be taken every 8 hours, which is more of a standard timing than PRN use. But, it is still the most accurate option for a PRN order.
D. Lorazepam 2.50 mg PO Q 8 hours for anxiety:This prescription is incorrect because it implies the medication should be taken every 8 hours regardless of need, which conflicts with the as-needed (PRN) nature of the order.
Correct Answer is D
Explanation
The nurse should report a creatinine level of 2 mg/dl to the provider as a potential adverse effect of captopril. Captopril is an angiotensin-converting enzyme (ACE) inhibitor commonly used to treat congestive heart failure and hypertension. One of the side effects of ACE inhibitors, including captopril, is the potential to cause kidney problems, leading to an increase in serum creatinine levels.
An increase in serum creatinine may indicate impaired kidney function, and it is essential to monitor kidney function regularly in clients taking ACE inhibitors. Elevated creatinine levels can suggest reduced glomerular filtration rate (GFR) and impaired kidney function, which may require adjustments in medication dosage or further evaluation and management.
Let's go through the other options:
A. Absolute neutrophil count (ANC) 4.000/ mm^3: An absolute neutrophil count of 4.000/ mm^3 is within the normal range, so it is not an adverse effect of captopril that requires immediate reporting.
B. Brain natriuretic peptide (BNP) 90 ng/L: A brain natriuretic peptide (BNP) level of 90 ng/L is used to assess heart failure severity. While BNP levels can be helpful in managing congestive heart failure, a BNP level of 90 ng/L is not an adverse effect of captopril that requires immediate reporting.
C. Sodium 140 mEq/l: A sodium level of 140 mEq/L is within the normal range, so it is not an adverse effect of captopril that requires immediate reporting.
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