
**Dosage Calculation 4.0 Parenteral (IV) Medications Test**

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A nurse is preparing to administer ceftriaxone 2 g by intermittent IV bolus every 24 hr. Available is ceftriaxone injection 2 g in dextrose 5% in water (D5W) 100 mL to infuse over 30 min. The nurse should set the IV pump to deliver how many mL/hr? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

  mL/hr




To calculate the rate at which the IV pump should be set, we need to determine how many milliliters per hour (mL/hr) should be delivered. Here's how to solve this problem:

### Step 1: Identify the information given
- **Total volume to be infused (V):** 100 mL
- **Time to infuse (T):** 30 minutes

### Step 2: Convert the infusion time from minutes to hours
- \( 30 \text{ minutes} \times \frac{1 \text{ hour}}{60 \text{ minutes}} = 0.5 \text{ hours} \)

### Step 3: Use the formula for calculating the infusion rate
\[
\text{Infusion rate} = \frac{V}{T}
\]
Where:
- \( V \) is the volume to be infused (100 mL)
- \( T \) is the time in hours (0.5 hours)

### Step 4: Substitute the values into the formula
\[
\text{Infusion rate} = \frac{100 \text{ mL}}{0.5 \text{ hours}} = 200 \text{ mL/hr}
\]

### Final Answer:
The nurse should set the IV pump to deliver **200 mL/hr**.

Would you like further details or have any questions?

Here are 5 related questions you might find useful:
1. How would you calculate the infusion rate if the volume and time were different?
2. What considerations should be taken when setting an IV pump for intermittent bolus medications?
3. How does the infusion rate change if the time to infuse is longer or shorter?
4. Why is it important to round the infusion rate to the nearest whole number?
5. What are the potential consequences of setting an incorrect infusion rate?

**Tip:** Always ensure that the infusion time is accurately converted into hours before performing calculations, as this is a common source of errors.

Learn how to calculate the IV pump rate for administering ceftriaxone injection. This problem involves determining the infusion rate based on the given volume and time constraints. Suitable for healthcare professionals and those training in medical settings.

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