A primary healthcare provider prescribes 14 units of insulin to a client.
What should a nurse do while administering this medication to the client?
Administer 14 units of medication SubQ in a U-100 syringe
Administer 14 units of medication SubQ in two divided doses in a U-100 syringe
Administer 14 units of medication SubQ in one dose in a tuberculin syringe
Administer 14 units of medication SubQ in the morning after breakfast in a tuberculin syringe
The Correct Answer is A
Insulin is a hormone that helps regulate blood sugar levels. It is usually injected into the fat layer just under the skin (subcutaneous or SubQ) using a syringe and needle or a pen-like device². Insulin syringes are marked in units of insulin, not milliliters or cubic centimeters. The most common insulin syringe holds 1 mL of fluid and has markings for 100 units of insulin². A U-100 syringe means that for every 1 mL of fluid, there are 100 units of insulin³.
To administer 14 units of insulin, you would need to draw up 0.14 mL of fluid in a U-100 syringe. You would inject the insulin into your abdomen, upper arm, butocks, hip, or the front or side of the thigh¹. You would use a different area within the site each time you inject insulin to prevent lumps, swelling, or thickened skin¹.
The other options are incorrect because:
b) There is no need to divide the dose into two injections. This would increase the risk of infection and pain.
c) A tuberculin syringe is not designed for insulin administration. It is marked in milliliters or cubic centimeters, not units of insulin. Using a tuberculin syringe could result in an incorrect dose of insulin.
d) The timing of insulin administration depends on the type and duration of insulin. Some insulins are taken before meals, some are taken after meals, and some are taken once or twice a day. The primary healthcare provider should specify when to take the insulin.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
To find the volume of fluid that will be left at 10:00 am, you need to calculate the following:
- The time elapsed in minutes from 8:45 am to 10:00 am using the formula: Time elapsed (min) = End time (min) - Start time (min)
- The volume of fluid infused in milliliters (mL) during the time elapsed using the formula: Volume infused (mL) = Flow rate (mL/min) x Time elapsed (min)
- The volume of fluid left in milliliters (mL) at 10:00 am using the formula: Volume left (mL) = Initial volume (mL) - Volume infused (mL)
First, use the formula for time elapsed to find how many minutes have passed from 8:45 am to 10:00 am:
Time elapsed (min) = End time (min) - Start time (min)
Since the end time is 10:00 am and the start time is 8:45 am, plug in these values into the formula:
Time elapsed (min) = 600 min - 525 min
Simplify and solve for the time elapsed:
Time elapsed (min) = 75 min
Next, use the formula for volume infused to find the amount of fluid infused in milliliters during the time elapsed:
Volume infused (mL) = Flow rate (mL/min) x Time elapsed (min)
Since the flow rate is 2 mL/min and the time elapsed is 75 min, plug in these values into the formula:
Volume infused (mL) = 2 mL/min x 75 min
Simplify and solve for the volume infused:
Volume infused (mL) = 150 mL
Then, use the formula for volume left to find the amount of fluid left in milliliters at 10:00 am:
Volume left (mL) = Initial volume (mL) - Volume infused (mL)
Since the initial volume is 1500 mL and the volume infused is 150 mL, plug in these values into the formula:
Volume left (mL) = 1500 mL - 150 mL
Simplify and solve for the volume left:
Volume left (mL) = 1350 mL
Therefore, the volume of fluid that will be left at 10:00 am is **1350 mL**.
Correct Answer is A
Explanation
To find the rate in mL/hr, you need to calculate the following:
- The concentration of nitroglycerin in the IV solution in mcg/mL
- The infusion rate in mL/hr using the formula: Infusion rate (mL/h) = (Dose (mcg/min) x 60 min/h) / Concentration (mcg/mL)
First, convert the concentration of nitroglycerin from mg to mcg by multiplying by 1000:
125 mg x 1000 = 125,000 mcg
Then, divide the amount of nitroglycerin by the volume of the IV solution to get the concentration in mcg/mL:
125,000 mcg / 500 mL = 250 mcg/mL
Next, plug in the values into the formula for infusion rate:
Infusion rate (mL/h) = (42 mcg/min x 60 min/h) / 250 mcg/mL
Simplify and solve for the infusion rate:
Infusion rate (mL/h) = 10.08 mL/h
Therefore, the nurse should program the IV pump to deliver **10.1 mL/h** to infuse nitroglycerin at 42 mcg/minute.
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