A child with growth failure is receiving somatropin (rDNA origin) 1.25 mg subcutaneously (subQ) daily. The nurse reconstitutes the vial with 5 mL of bacteriostatic water for injection to yield a solution concentration of 5 mg/mL. How many mL should the nurse administer? (Enter numeric value only. If rounding is required, round to the nearest hundredth.)

Here's how to calculate the volume (mL) the nurse should administer for somatropin: 1. We know the following: Prescribed dose: 1.25 mg somatropin (given) Concentration after reconstitution: 5 mg/mL (given) 2. We need to find the volume (mL) to administer for the prescribed dose (1.25 mg) considering the concentration (5 mg/mL) of the reconstituted solution. Volume to administer (mL): Dose (mg) / Concentration (mg/mL) Volume to administer (mL): 1.25 mg / 5 mg/mL Volume to administer (mL) = 0.25 mL (round to nearest hundredth) Therefore, the nurse should administer 0.25 mL of the reconstituted somatropin solution subcutaneously.