IV Drip Rate and Infusion Times

This is a multi-step calculation to find the flow rate in mL/hr based on a dosage per hour.

**Method 1: Using Ratios**

**Step 1: Determine the concentration of the medication in the IV bag.**
- The bag has 25,000 units in 250 mL.
- Concentration = $$ \frac{\text{Total Units}}{\text{Total Volume}} = \frac{25000 \text{ units}}{250 \text{ mL}} = 100 \text{ units/mL} $$

**Step 2: Calculate the required flow rate in mL/hr.**
- The desired dose is 1,200 units/hr.
$$ \frac{\text{Ordered Dose (units/hr)}}{\text{Concentration (units/mL)}} = \frac{1200 \text{ units/hr}}{100 \text{ units/mL}} = 12 \text{ mL/hr} $$

**Method 2: Using Dimensional Analysis**

**Formula:**
$$ \frac{\text{Volume (mL)}}{\text{Amount on Hand (units)}} \times \frac{\text{Ordered Dose (units)}}{\text{Time (hr)}} = \text{Rate (mL/hr)} $$

**Step 1: Plug in the values.**
$$ \frac{250 \text{ mL}}{25000 \text{ units}} \times \frac{1200 \text{ units}}{1 \text{ hr}} = \frac{300000}{25000} \text{ mL/hr} = 12 \text{ mL/hr} $$

Both methods confirm that the nurse should set the infusion pump to **12 mL/hr**.

**Incorrect Options:** The other options represent common calculation errors, such as inverting the fractions or making a decimal placement mistake.

IV Drip Rate & Infusion Time NCLEX Quiz

Master gtt/min and mL/hr fast. Ten advanced calculation questions focus solely on IV flow rates and infusion times - perfect for last‑minute review.

Explanation

More Free Quizzes