Math for Meds

Card Set Information

Author:
misscriss
ID:
110369
Filename:
Math for Meds
Updated:
2011-10-19 19:17:20
Tags:
Formulas meds dosaging
Folders:

Description:
Math formulas for meds dosaging, WCC nursing program
Show Answers:

Home > Flashcards > Print Preview

The flashcards below were created by user misscriss on FreezingBlue Flashcards. What would you like to do?


  1. IV Flow Rate Equation
    An IV is ordered to infuse at a rate of 125 mL/hr using a set calibrated at 10 gtt/mL. What is the flow rate?
    (Total Volume X gtt Factor) / Min

    • 125 mL X 10 gtt /60
    • 125 X 10 = 1250
    • 1250 % 60 = 20.8
    • = 21 gtt/min
  2. Infusion Time
    Calculate infusion time for an IV of 500 mL to infuse at 50 mL/hr
    • Infusion Time = volume % mL/hr rate
    • 500 mL % 50 mL/hr
    • = 10 hr
  3. Formulaic Method

    The Dr. ordered 30 mEq. The the bottle is labeled 80 mEq per 5 mL. How much do you give?
    • D x Q = X
    • H

    • D= Desired
    • H= Have
    • Q= Quantity needed

    • 30 mEq x 5 mL = 0.375 x 5 = 1.875 = 1.9 mL
    • 80 mEq
  4. What are the macrodrip set calibrations?
    • 10 gtt/mL
    • 15 gtt/mL
    • 20 gtt/mL
  5. What is the microdrip set calibration?
    60 gtt/mL
  6. Convert fractional hour to minutes

    The order is to infuse 1000 mL at 75 mL/hr. Calculate the infusion time.
    Calculate min by multiplying 60 min by the fractional.

    • 1000 mL = 13.33 hr
    • 75 mL/hr

    • 60 min x .33 hr = 19.8 = 20 min
    • Infusion time is 13 hr 20 min.
  7. Completion Time

    An IV infusion time is 13 h 20 min. What is its completion time if it was started at 10:45?
    Completion time is calculated by adding the infusion time to the time the IV was started.

    • 10:45 am
    • +13:20
    • 23:65
    • change 65 min to 1 hr 5 min = 24:05
    • = 00:05 = 12:05 a.m.

What would you like to do?

Home > Flashcards > Print Preview