A nurse is preparing to administer insulin glargine to a child who has type 1 diabetes mellitus. The client is to receive 10 units subcutaneous once daily at bedtime. Reading the label on the unopened vial, the nurse should determine that the vial contains how many doses of this medication? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Calculation: Identify the total volume of the insulin glargine in the vial. Total volume = 10 mL. Identify the concentration of the insulin glargine. Concentration = 100 units/mL. Calculate the total number of units in the vial. Total units = Total volume (mL) × Concentration (units/mL) = 10 mL × 100 units/mL = 1000 units. Identify the dose the client will receive per administration. Dose per administration = 10 units. Calculate the number of doses the vial contains. Number of doses = Total units / Dose per administration = 1000 units / 10 units/dose = 100 doses.