A nurse started a continuous IV infusion of 1 L of normal saline (NS) at 06:57, and the infusion is completed at 15:45. What is the flow rate of infusion in this situation?
114 mL/hr
124 mL/hr
125 mL/hr
130 mL/hr
The Correct Answer is A
The infusion was started at 06:57 and completed at 15:45, which is a total time of: 15 hours and 45 minutes - 6 hours and 57 minutes = 8 hours and 48 minutes
To calculate the flow rate, we need to know the total amount of fluid infused and divide it by the total time of infusion:
1 L = 1000 mL
Total time of infusion = 8 hours and 48 minutes = 528 minutes Flow rate = Total amount of fluid infused / Total time of infusion Flow rate = 1000 mL / 528 minutes
Flow rate = 1.89394 mL/min
To convert mL/min to mL/hr, we multiply by 60:
Flow rate = 1.89394 mL/min x 60 min/hr Flow rate = 113.6364 mL/hr
Therefore, the flow rate of infusion in this situation is approximately 114 mL/hr, which corresponds to option A.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
To calculate the amount of drug per minute, divide the total dose by the infusion time in minutes:
5 mg ÷ 2 minutes = 2.5 mg/minute
The patient should receive 2.5 mg of Lopressor per minute for 2 minutes to get a total dose of 5 mg.
Correct Answer is D
Explanation
According to the web, the abdomen is the preferred site for insulin injection because insulin is absorbed more quickly and predictably there.
This helps to maintain a stable blood glucose level and avoid hypoglycemia or hyperglycemia.
The other choices are not answers because:
Choice A (it is the least painful location for this injection) is incorrect because pain depends on various factors, such as needle size, injection technique, and individual sensitivity. The abdomen may not be the least painful location for everyone.
Choice B (it causes less bruising at the site) is incorrect because bruising can occur at any injection site if the needle damages a blood vessel. The abdomen does not have less blood vessels than other sites.
Choice C (there are fewer insulin side effects when given in this site) is incorrect because insulin side effects are not related to the injection site, but to the dose, type, and quality of insulin. The abdomen does not reduce the risk of side effects such as allergic reactions, weight gain, or low blood sugar.
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