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# Assuming that the medication comes in 10ml vials, calculate the days' supply for a prescription written as Humalog U-100 Inject 10 U SQ QID.

Question:

A
25 days

Explaination

Humalog U-100 is a 10 ml bottle that has 100U/ml. The days' supply is calculated this way:

Units in 1 bottle = 100 U/1ml = x U/ 10ml

Cross multiply and:

x = 1000 U

To solve for days supply of prescription:

40 U/ 1 day = 1000 U/ x day

Cross multiply and:

x = 25

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