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 D
Explanation
Furosemide is a diuretic that lowers blood pressure by increasing urine output and reducing fluid volume in the body.
One of the possible adverse effects of furosemide is hypotension, which is low blood pressure.
This can cause symptoms such as dizziness, faintness, confusion, or weakness.
The nurse should monitor the client’s blood pressure and report any signs of hypotension to the doctor.
Choice A is wrong because hypertension, which is high blood pressure, is not a common side effect of furosemide.
In fact, furosemide is used to treat hypertension in some cases.
Choice B is wrong because hypoglycemia, which is low blood sugar, is not a common side effect of furosemide.
Furosemide does not affect blood sugar levels directly.
However, it may interact with some medications that lower blood sugar, such as insulin or oral antidiabetic drugs.
The nurse should check the client’s medication history and monitor their blood sugar levels if they are taking any of these drugs.
Choice C is wrong because hyperkalemia, which is high potassium levels in the blood, is not a common side effect of furosemide.
Furosemide belongs to a class of diuretics called loop diuretics, which lower potassium levels by increasing its excretion in the urine.
One of the possible adverse effects of furosemide is hypokalemia, which is low potassium levels in the blood.
This can cause symptoms such as muscle cramps, weakness, irregular heartbeat, or numbness.
The nurse should monitor the client’s potassium levels and advise them to eat foods rich in potassium, such as bananas, oranges, or potatoes.
Normal ranges for blood pressure are 90/60 mmHg to 120/80 mmHg.
Normal ranges for blood sugar are 4.0 mmol/L to 7.8 mmol/L (72 mg/dL to 140 mg/dL).
Normal ranges for potassium are 3.5 mmol/L to 5.0 mmol/L (3.5 mEq/L to 5.0 mEq/L).
Correct Answer is A
Explanation
Fluid overload, also called hypervolemia, is a condition in which the body has too much water.
It can cause edema, hypertension, shortness of breath, and cardiovascular problems.
Diuretics are medications that help the body remove excess fluid through urine.
They are commonly used to treat fluid overload caused by heart failure, kidney failure, cirrhosis, and other conditions.
Choice B is wrong because encouraging increased fluid intake would worsen the fluid overload and increase the risk of complications.
Choice C is wrong because providing a high-sodium diet would also worsen the fluid overload and increase the risk of complications.
Sodium is an electrolyte that regulates fluid balance in the body.
Excess sodium intake can cause water retention and increase blood pressure.
Choice D is wrong because elevating the affected extremities is not an appropriate intervention for fluid overload.
Elevating the extremities can help reduce swelling caused by local factors such as injury or inflammation, but it does not address the underlying cause of fluid overload.
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