Question

Order: 350 mL 0.45% NS IV over 4 hours. Tubing factor: 15 gtts/mL.

What is the quantity to administer?
_____gtts/min. Round to a whole number.

Answer 1

To administer 350 mL 0.45% NS IV over 4 hours with a tubing factor of 15 gtts/mL, the quantity to administer is approximately 22 gtts/min.

Step-by-step explanation:

To calculate the quantity to administer, we need to convert the given volume from mL to drops (gtts). The tubing factor of 15 gtts/mL is used to convert mL to gtts. First, we convert the 4 hours to minutes, which gives us 240 minutes. Then, we divide the volume of 350 mL by the time of 240 minutes to get the rate of administration in mL/min.

350 mL / 240 min = 1.4583 mL/min.

Next, we multiply the rate in mL/min by the tubing factor to get the rate in gtts/min.

1.4583 mL/min × 15 gtts/mL = 21.8745 gtts/min.

Finally, we round the result to a whole number, which gives us a quantity to administer of 22 gtts/min.