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The pharmacy sends a bag of 150 mLs of D5W/0.456 normal saline with 25 units of Regular Insulin.

The patient is ordered to receive an insulin drip at a rate of 9 units/hour.

What rate will you set the IV pump to deliver? Numeric values only.
Answer and Explanation

The Correct Answer is ["20"]

  1. Calculate the total units of insulin in the IV bag:

    • The bag contains 150 mL of solution.
    • The concentration is 0.456 units/mL.
    • Total insulin = 150 mL × 0.456 units/mL = 68.4 units.

  2. Determine how long the IV bag will last:

    • The ordered rate is 9 units/hour.
    • Total duration = 68.4 units ÷ 9 units/hour = 7.6 hours.

  3. Calculate the IV pump rate:

    • The total volume of the bag is 150 mL.
    • Pump rate = 150 mL ÷ 7.6 hours = 19.74 mL/hr.
    • Rounded to the nearest whole number: 20 mL/hr.

So the nurse should set the IV pump to 20 mL/hr.


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Related Questions

Correct Answer is A

Explanation

Choice A rationale:

-2 station means the baby’s head is 2 cm above the ischial spines. This is a possible position during labor.

Choice B rationale:

0 station means the baby’s head is at the level of the ischial spines, which typically indicates the beginning of active labor.

Choice C rationale:

Crowning refers to when the baby’s head is visible at the vaginal opening, which occurs later in labor.

Choice D rationale:

+2 station means the baby’s head is 2 cm below the ischial spines. This typically occurs later in labor.

Correct Answer is D

Explanation

Choice A rationale:

A cephalhematoma is a collection of blood that can occur under the scalp of a newborn. It does not aid in the passage of the fetal skull through the birth canal.

Choice B rationale:

Vertex presentation refers to the position of the fetus in the womb, not a feature of the skull that aids in birth.

Choice C rationale:

Caput succedaneum is a swelling of the scalp in a newborn. It is caused by pressure from the uterus or vaginal wall during a head-first (vertex) delivery, not a feature that aids in birth.

Choice D rationale:

Molding refers to the shaping of the fetal skull to fit through the birth canal. This is possible due to the presence of sutures and fontanelles in the skull, which allow the bony plates of the skull to move and overlap.

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