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 B
Explanation
This is because hyponatremia is a condition where sodium levels in your blood are lower than normal, usually due to too much water in your body that dilutes the sodium. A hypertonic saline solution is a fluid that has a higher concentration of sodium than blood, and it can help restore the normal sodium balance by drawing water out of the cells.
Choice A is wrong because restricting fluid intake may not be enough to correct severe hyponatremia, and it may worsen the symptoms of dehydration.
Choice C is wrong because encouraging increased fluid intake will further lower the sodium levels and increase the risk of complications such as brain swelling.
Choice D is wrong because administering a loop diuretic will cause more sodium and water loss from the kidneys, which can worsen hyponatremia and dehydration.
Normal ranges for blood sodium levels are between 135 and 145 milliequivalents per liter (mEq/L).
Hyponatremia is defined as a blood sodium level below 135 mEq/L1.
Correct Answer is A
Explanation
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.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today