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: Determine the total units of insulin in the vial. The vial contains 10 mL of solution. The concentration is 100 units/mL. Total units in vial = 10 mL × 100 units/mL = 1000 units. Determine the size of one dose. The client is to receive 10 units per dose. Calculate the total number of doses in the vial. Number of doses = Total units in vial / Units per dose = 1000 units / 10 units/dose = 100 doses.