A client who is NPO has an order for 1000 mL of D5W 0.45% NS with 40 mEq of potassium over 24 hours.
How many mL/h should the IV pump be programmed for?
Math instructions: IV calculations: (rate-mL/hr).
Although some IV pumps do allow calibration to the tenth or hundredth, for the purpose of exams, IV rate calculations will be rounded to the nearest whole number.
42 mL/h.
44 mL/h.
46 mL/h.
48 mL/h.
The Correct Answer is A
The correct answer is A. 42 mL/h.
Choice A: 42 mL/h
Reason: To calculate the IV rate, we use the formula: IV rate (mL/h) = Total volume (mL) ÷ Total time (hours). For this problem, the total volume is 1000 mL and the total time is 24 hours. Therefore, the calculation is 1000 mL ÷ 24 hours = 41.6667 mL/h. When rounded to the nearest whole number, the IV rate is 42 mL/h. This makes 42 mL/h the correct answer.
Choice B: 44 mL/h
Reason: This choice is incorrect because it does not match the calculated IV rate. The calculation of 1000 mL ÷ 24 hours results in 41.6667 mL/h, which rounds to 42 mL/h, not 44 mL/h. Therefore, 44 mL/h is not a valid option based on the given data.
Choice C: 46 mL/h
Reason: This choice is also incorrect. The calculated IV rate of 41.6667 mL/h, when rounded to the nearest whole number, is 42 mL/h. There is no mathematical basis for rounding up to 46 mL/h from 41.6667 mL/h, making this choice invalid.
Choice D: 48 mL/h
Reason: This choice is incorrect as well. The correct calculation yields 41.6667 mL/h, which rounds to 42 mL/h. There is no justification for rounding up to 48 mL/h. This choice does not align with the calculated and rounded IV rate.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Acute renal injury (ARI) is a term for a reversible syndrome that results in decreased glomerular filtration rate (GFR) and oliguria. GFR is a measure of how well the kidneys filter blood and oliguria is a condition of producing less than normal amounts of urine.
Choice B is wrong because chronic renal injury (CRI) is not a reversible syndrome, but a progressive loss of kidney function over months or years.
Choice C is wrong because end-stage renal disease (ESRD) is not a reversible syndrome, but a condition where the kidneys have lost most or all of their function and dialysis or transplantation is required.
Choice D is wrong because acute tubular necrosis (ATN) is not a term for a syndrome, but a specific type of acute kidney injury that involves damage to the tubules, the part of the nephron that reabsorbs water and solutes from the filtrate.
Correct Answer is C
Explanation
A urinary tract infection (UTI) is a common complication after bladder cancer surgery, especially if the patient has an indwelling urinary catheter.
A UTI can cause symptoms such as fever, pain, burning or urgency when urinating, blood in the urine, or cloudy or foul-smelling urine.
Choice A is wrong because urinary retention (the inability to empty the bladder completely) is unlikely to occur with an indwelling catheter, which drains urine continuously.
Choice B is wrong because urinary incontinence (the loss of bladder control) is more likely to occur after partial or radical cystectomy, which remove part or all of the bladder, respectively.
In these cases, reconstructive surgery is needed to create a new way for urine to leave the body.
Choice D is wrong because urinary urgency (the sudden and strong need to urinate) is also more likely to occur after partial or radical cystectomy, which can affect the nerves and muscles that control urination.
Urinary urgency can also be a symptom of a UTI, but it’s not the only one.
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