A nurse is infusing an IV fluid at 40 mL/hr, and 376 mL of fluid remains in the bag. The current time is 19:30. What is the infusion time in hr and min?
9 hr and 15 min
9 hr and 24 min
9 hr and 30 min
9 hr and 40 min
The Correct Answer is B
We can use the following formula to calculate the infusion time:
Infusion time (in hours) = Remaining volume (in mL) / Infusion rate (in mL/hr)
First, let's convert the current time to minutes since we will be calculating the infusion time in minutes as well:
19:30 = 19 hours x 60 minutes/hour + 30 minutes = 1170 minutes Now we can substitute the given values into the formula:
Infusion time (in hours) = 376 mL / 40 mL/hr Infusion time (in hours) = 9.4 hours
To convert this to hours and minutes, we can separate the integer and decimal parts of the answer:
9 hours (integer part) and 0.4 hours x 60 minutes/hour = 24 minutes (decimal part)
Therefore, the infusion time is 9 hours and 24 minutes, and the infusion will finish at approximately 04:54 (19:30 + 9 hours and 24 minutes).
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Related Questions
Correct Answer is D
Explanation
The patient is ordered to receive 0.5 grams of amoxicillin three times per day, which is equivalent to 500 mg per dose.
The concentration of amoxicillin is 125 mg/5 mL, which means there is 125 mg of amoxicillin in 5 mL of solution. To calculate how many milliliters per dose the nurse should administer, we can use the following formula:
500 mg / 125 mg per 5 mL = X mL X = 20 mL per dose
Amoxicillin is a type of antibiotic that belongs to the penicillin group of drugs. It is used to treat various bacterial infections, such as ear infections, sinus infections, throat infections, urinary tract infections, and skin infections. Amoxicillin works by interfering with the cell wall synthesis of bacteria, causing them to die or stop growing. Amoxicillin can also be used in combination with other drugs to treat stomach ulcers caused by Helicobacter pylori bacteria.
Correct Answer is D
Explanation
The toddler is ordered to receive 25 mg/kg of Principen IV over 30 minutes. The toddler weighs 22 lb, which is equivalent to 10 kg. To calculate the total amount of Principen the toddler should receive, multiply the weight by the dosage:
10 kg x 25 mg/kg = 250 mg
The Principen dose arrives from the pharmacy prepared in 50 mL of IV solution, which means there is 250 mg of Principen in 50 mL of solution. To calculate how many milliliters per hour the nurse should administer, we can use the following formula:
50 mL / 0.5 hour = X mL per hour X = 100 mL per hour
Therefore, the nurse should administer 100 mL of Principen per hour to the toddler.
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