If a medication is ordered to be given QID starting at 1600 on the 6th of the month, when will the last dose be administered?

To determine when the last dose of medication will be administered based on the order to give it QID (four times a day) starting at 1600 on the 6th of the month, we first need to calculate the dosing schedule. QID typically means the medication would be given approximately every 6 hours throughout the day.

The administration times for the medication would therefore be:

• First dose: 1600 (4 PM) on the 6th

• Second dose: 2200 (10 PM) on the 6th

• Third dose: 0400 (4 AM) on the 7th

• Fourth dose: 1000 (10 AM) on the 7th

This schedule would continue daily. To find the last dose on the 16th, we recognize that the medication will continue for a total of 10 days since it starts on the 6th. Therefore, the last day for administering doses would be the 16th, and the final doses would occur at the regular intervals:

On the 16th, the doses would be given at:

• 1600 (4 PM)

• 2200 (10 PM)

Since the question asks for the last dose on the