This document provides information on converting between different units of measurement for medications (e.g. milligrams to micrograms), calculating infusion rates, and determining volumes needed based on medication doses and concentrations. Equations are given for determining infusion rates based on micrograms/kg/minute for drugs like dobutamin and dopamine. Examples are also shown for calculating infusion rates and volumes based on given medication orders and available concentrations.

1. Miss.Taghreed hawsawi
BSN- Nursing educator

2. • 1 mg = 1000 micrograms
• 1 gm = 1000 milligrams
• 1 Kg = 1000 grams
• 1 Kg = 2.2 pounds
• 1 L = 1000 milliliter
• Drip factor of the infusion dripper 60
drops/ml
• Drip factor of the IV set =15 - 20 drops/ml
• Drip factor of the solu-set 60 drops/ml

3. • To convert from a larger unit to a smaller
unit, multiply by 1000 or move the decimal
point three places to the right
• To convert from a smaller unit to a larger
unit, divide by 1000 or move the decimal
point three places to the left

4. Convert 0.25 mg into micrograms
0.25 × 1000 or move decimal point three places
to the RIGHT
= 250 micrograms
Convert 600 micrograms to mg
600 ÷ 1000 or move the decimalpoint
three places to the LEFT
= 0.6 mg

5. Maintenance dose witch is giving to the
patients without any drugs added and to be
given in regular time and frequently through
intravenous by using :
1 – Dripper machine .
2 – IV set manually

6. = administered
amount
Desired dose X Volume or dilution
_____________________________
Stock in hand

7. What we
WANT
Furosemide
250mg/10mL
Furosemide Time
6 am
12 Md
Dose
200mg
Route
IV
Start Date
18.05.07
End
Date
6 pm
12 MN
Other Time
Signature of
Doctor
P.Rescriber
What we
have GOT
What it is IN
A patient is prescribed 200mg of Furosemide I.V.The ampoules
available contain 250mg in 10mL.What volume containing the
drug do you need to administer?

8. mic X Kg X min X sol ( ml )
ml/hr = --------------------------------------
conc ( mg ) X 1000

9. What we
WANT
What we
have GOT
What it is IN
Dobutamin Time
6 am
12 Md
Dose
1gm
Route
IV
Start Date
18.05.07
End
Date
6 pm
12 MN
Other Time
Signature of
Doctor
P.Rescriber
20mic/kg/min

10. 20 X 75 X 60 X 500 ml
ml/hr = ------------------------------- = 45 ml/hr
1000 mg X 1000

11. = MIC /KG /min
Infusion (ml) X desired dose X 100
_______________________________________
B.W X Mints X Dilution

12.  Doctor order to start Dopamine 1200mg in
NSS to keep total volume 100 ml
concentrated to be run by3.75m l/hr patient
body weight 75kg
3.75 X 1200 X 1000
-------------------------------= 10 mic/kg/min
75 X 60 X 100 ml

13. mic X min X sol ( ml )
ml/hr = ----------------------------------
conc ( mg ) X 1000

14. What we
WANT
What we
have GOT
What it is IN
Tridil Time
6 am
12 Md
Dose
50gm
Route
IV
Start Date
18.05.07
End
Date
6 pm
12 MN
Other Time
Signature of
Doctor
P.Rescriber
1-mic/kg/min

15. 10 X 60 X 500 ml
ml/hr = --------------------------- = 6 ml/hr
50 mg X 1000

16. 25000 IU = 500cc 1000 X 500
Z = ------------------ = 20 ml/hr
1000 IU = Z 25000
b) Prepare in concentrated dose, total volume 25ml
Each vial = 25000 IU/5ml 5ml + 20 NSS = 25ml
25000 IU = 25 ml 1000 x 25
Z = ---------------- = 1 ml/hr
1000 IU = Z 25000

18. total of sol (ml)
ml/hr= ---------------- X drip factor
total time (min)

19. 500 ml
-------------- X 60 = 62.5 ml/hr
480 min
Doctor order to Start Normal saline 500 ml to
be infused IV using the dreper TID & infuse it
with sulo set .
.

20. total of sol ( ml )
gtt/hr = --------------------- X drip factor
total time ( min )

21. IV SET MANUALLY
250 ml
-------------- X 20 = 6.9 gtts/hr
720 min
6.9 X 3 = 20.7 ml/hr
Doctor order to Start Dextrose10% 250 ml to be
infused IV every 12hrBID

22. Amount of ordered IVF
------------------------------ = ml/ h
Totaled hour