Intravenous Infusion Calculations
A patient is to receive 1 L of Hartmann's solution over the next 12 hours. What is the rate of infusion in drops per minute (dpm) if the drop factor is 60
Infusion-Quiz-1.pdf
your patient over the next 12 hours. Calculate the rate of flow if the IV tubing (1000 mL x 15 gtt/min) ÷ (8 hrs. x 60 min) = 31.25 --> 31 gtt/min.
Infusion-Quiz-3.pdf
The physician orders an IV infusion of D5W 1000 mL to infuse over the next 8 hours. The IV How much fluid will the patient receive in 12 hours?
Healthcare Math: Calculating IV Flow Rates
Example: 1500 mL IV Saline is ordered over 12 hours. Dr. John ordered 1000 mL of 0.9% NS to infuse in 12 hours with a drop factor of 20 gtts/mL. What is.
Infusion-Quiz-4.pdf
a. 12 gtt/min b. 21 gtt/min c. 31 gtt/min d. 40 gtt/min. 2. The doctor orders an IV infusion of D5W 1000 mL to infuse over the next 4 hours. The IV.
Medication calculations
1000 ml = 125 Example: 1000 ml solution to infuse over 6 hours. ... Answer: 11.8 ml/hr----this is what the pump must be set at (-round up to 12ml/hr).
Infusion-Quiz-2.pdf
How many units of Heparin is the patient receiving each hour? a. 200 units/h to your patient over the next 12 hours. ... 1000 mL (1 litre) ÷ 6 hrs.
Drug Calculations
Eg: a 1000ml infused over 12 hours. 1000. 12. = 83.3ml/hr rounded down to 83ml/hr. 23. A 1L bag is to be infused over 6 hours. Calculate how many mls.
Intermediate IV Practice Problems Practice Problem 1 Practice
Rocephin 1 g in 250ml of D5W to be given over 1 hour. “The Volume is 1000mL and the flow rate is 125 so hours ... so 7 hours and 12 minutes is the.
Drug Dosage & IV Rates Calculations
Example 2: The infusion set is adjusted for a drop factor of 15 gtts/mL. Calculate the IV flow rate if 1500 mL IV saline is ordered to be infused over 12 hours.
![Drug Calculations Drug Calculations](https://pdfprof.com/Listes/27/60566-27ClinicalCalcsRevisionPackage.pdf.pdf.jpg)
C:\Documents and Settings\neilh\Local Settings\Temporary Internet Files\Content.Outlook\BA80LT24\Clinical calcs REVIEW
SESSION.doc
Prepared by: Janet Tweedy and Deb Mason, Nurse Educators, Department of Nursing, Christchurch Hospital, May 2000.
Canterbury Health Ltd.
Last updated June 2000.
1DRUG CALCULATIONS
When calculating how much of a drug is required, working with the formula helps the accuracy of the calculation.Always remember this formula:
What you want X Quantity it comes inWhat you have 1
to use a calculator!1. A patient requires 4 mg of Morphine IVI. Morphine is available as
10mg/ml. How many mls will you draw up?
2. Gentamycin 360 mg is prescribed. Gentamycin is available as
80mg/2ml. How many mls will you draw up?
3. Haloperidol 3 mg IVI is charted. Haloperidol is available as 5mg/ml.
How many mls is required?
4. Frusemide 70mg IVI is charted. Stock dose is 20mg/ml. How many ml
would you give?C:\Documents and Settings\neilh\Local Settings\Temporary Internet Files\Content.Outlook\BA80LT24\Clinical calcs REVIEW
SESSION.doc
Prepared by: Janet Tweedy and Deb Mason, Nurse Educators, Department of Nursing, Christchurch Hospital, May 2000.
Canterbury Health Ltd.
Last updated June 2000.
2METRIC CONVERSIONS
Metric weights and measurements involve a step-by-step conversion from one unit to another. With weight we often convert to smaller (and more numerous units) thus:Kg gm mg mcg
grams milligrams micrograms Each of these steps involves the heavier unit being multiplied by 1000 to bring up the number of the smaller units for the same weight. kg g 1kg x 1000 = 1000g g mg 1g x 1000 = 1000mg mg mcg 1mg x 1000 = 1000mcg the right0.5g == ?? mg 0.5 x 1000 == 500mg
1 place = 5
2 places = 50
3 places = 500
If we are converting from a lighter unit to a heavier unit we move the decimal point three places to the left for each conversion. Another way of putting it is we divide by 1000. mcg mg 1000mcg1000 = 1mg
mg gm 1000mg1000 = 1gm
gm kg 1000gm1000 = 1kg
500mg = ?? gm 500
1000 = 0.5mg
1 place = 50
2 places = 5
3 places = 0.5
C:\Documents and Settings\neilh\Local Settings\Temporary Internet Files\Content.Outlook\BA80LT24\Clinical calcs REVIEW
SESSION.doc
Prepared by: Janet Tweedy and Deb Mason, Nurse Educators, Department of Nursing, Christchurch Hospital, May 2000.
Canterbury Health Ltd.
Last updated June 2000.
3Memory Tip:
Try these:
5. Atropine 0.6 mg = ?mcg
0.6 x 1000 = 600mcg
6. 0.01gm = ? mg
0.01 x 1000 = 10 mg
7. Gentamycin 360mg = ?gm
3601000 = 0.36gm
8. Digoxin 125mcg = ? mg
1251000 = 0.125mg
If we are moving across two conversions we repeat the process twice.For example from grams to micrograms:
3gm converted to micrograms
Step one:
= 3 x 1000 = 3000mgStep two:
3000mg x 1000 = 3,000,000mcg
9. Augmentin 1.2gm = ?mcg
1.2 x 1000 = 1200mg
1200 x 1000 = 1,200,000mcg
10. Digoxin 125mcg = ? gm
1251000 = 0.125mg
0.1251000 = 0.000125gm
C:\Documents and Settings\neilh\Local Settings\Temporary Internet Files\Content.Outlook\BA80LT24\Clinical calcs REVIEW
SESSION.doc
Prepared by: Janet Tweedy and Deb Mason, Nurse Educators, Department of Nursing, Christchurch Hospital, May 2000.
Canterbury Health Ltd.
Last updated June 2000.
4Try these:
Convert
11. 1.2 mg to mcg
12. 1.3g to mg
13. 500mcg to mg
14. 0.04 mg to mcg
15. 20mcg to mg
16. 600mcg to g
17. 2g to mcg
When we are converting volumes the process is the same.Litres
ml1 Litre
1000ml
0.25L 250ml375ml
0.375L
Try these:
Convert
18. 450ml to L
19. 64 ml to L
20. 4.3L to ml
C:\Documents and Settings\neilh\Local Settings\Temporary Internet Files\Content.Outlook\BA80LT24\Clinical calcs REVIEW
SESSION.doc
Prepared by: Janet Tweedy and Deb Mason, Nurse Educators, Department of Nursing, Christchurch Hospital, May 2000.
Canterbury Health Ltd.
Last updated June 2000.
5MG/KG DOSE CONVERSION
Often we need to check the dose of a drug or solution that is based We multiply the prescribed mg dose by the kg weight of the patientPrescribed dose - 25mg per kg
- 66kgWhat is the dose required?
25mg x 66kg = 1650mg
= 1.65g21. Prescribed dose 50 mg/kg
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