Drug calc question

[TazziRN]

My friend got this on her pre-employment meds test, and it has both of us stumped. I even showed it to two people at work and we all came up with the same answer, which is not one of the choices listed.

A nitro drip at 24 mcg/min is ordered. The pharmacy sends a bottle of 250 ml D5W with 8 mg of nitro. The drip factor for the nitro tubing is 60 gtts/ml. What would be the flow rate for this IV?

A) 28 gtts/min

B) 36 gtts/min

C) 43 gtts/min

D) 47 gtts/min

We all came up with 45 gtts/min. What do you get?

[AnRNIam]

This is standard concentration in ICU where I work, premixed. The correct answer to the calc is 45gtts/hr. The exam is wrong. Are they testing to see if the person taking the test is willing to stand up and be pro-active by challenging them?

[TazziRN, RN]

does it come from manufacturer or mixed in pharmacy?

Mixed in pharmacy, or in our place mixed in ER or ICU.

Are they testing to see if the person taking the test is willing to stand up and be pro-active by challenging them?

I honestly think it's just written wrong, but I told Friend to handwrite the correct answer.