The physician orders \( 3 / 4 \) strength Isomil \( 16 \mathrm{fl} \mathrm{oz} \mathrm{p.o}. \mathrm{q} \).4 h for 24 h Step 2 of \( 3: \) What is the required amount of solvent, in milliliters, for this order? Answer

We begin by determining the concentrate and solvent volumes for each 16‑fl oz dose. 1. Since the order is for a \( \frac{3}{4} \) strength formula, the concentrate used per dose is \[ 16 \text{ oz} \times \frac{3}{4} = 12 \text{ oz}. \] 2. The solvent needed per dose is the difference between the total volume and the concentrate volume: \[ 16 \text{ oz} - 12 \text{ oz} = 4 \text{ oz}. \] 3. The order is to be administered every 4 hours for 24 hours. Thus, the number of doses is \[ \frac{24 \text{ h}}{4 \text{ h/dose}} = 6 \text{ doses}. \] 4. The total amount of solvent required for the order is \[ 4 \text{ oz/dose} \times 6 \text{ doses} = 24 \text{ oz}. \] 5. Converting 24 fluid ounces to milliliters using the conversion factor \(1 \text{ oz} \approx 29.57 \text{ mL}\): \[ 24 \text{ oz} \times 29.57 \frac{\text{mL}}{\text{oz}} \approx 709.68 \text{ mL}. \] Thus, the required amount of solvent for this order is approximately \[ 710 \text{ mL}. \]