When giving Phenergan through an IV push, how do I know how long to give it for?
- 0Here's my thought process on this:
Let's say my TA were to say, "You're giving 12.5 mg phenergan to the mannequin".
The first thing I'd do is look at the vial and see the concentration of phenergan in that vial. So let's say it's 25 mg/mL.
Obviously, the calculation will tell me I'll need to withdraw 0.5 mL of phenergan into a syringe.
I think that's the easy part. But I'm not sure how to find out at what rate to give the phenergan at when I stick the syringe into the port.
What I tried to do is I went to the drug book (I have "Davis's Drug Guide for Nurses") and looked in the Route/Dosage section for promethazine, and there's various types (Antihistamine, Sedation, Antiemetic). I'm not sure which one to pick?
Also, my other big question is how long to keep pushing that 0.5 mL of phenergan for.
For instance, I'll pick what it says for the IV section for Antihistamine: "25 mg; may repeat in 2 hr"
I don't know how long to inject it for!
- 0ooh, I think I found it!
It says "Administer each 25 mg slowly, over at least 10-15 min (maximum rate = 25 mg/min)". Since I'm giving 12.5 mg (or half a mL), this means I'd be administering this drug for 5 - 7.5 minutes, yes?
But since I won't have that much time during the skills test to inject just phenergan I'll probably let my TA know ...
- 1Oct 13, '11 by Ashley, PICU RNYes, you're correct. But also read about diluting the med. Phenergan is extremely damaging to the veins (you'll find plenty of examples online to people who have lost fingers and hands because phenergan was infused too quickly, too concentrated. It should be diluted in at least 10mLs of NS before you give it.
- 0Oct 13, '11 by RaineyRNDilute well and push sloooooowwwllllyyyyy.... :-) and read the warnings... you'll see them tested on somewhere down the road...