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Ivt Computation

This document provides calculations to determine the flow rate in mL/hr and gtts/min for intravenous infusions of various fluids over specified periods of time. The calculations use the volume of fluid, infusion time, and drop factor to determine: 1) The flow rate in mL/hr using the formula mL/hr = Volume (mL) / Time (hours) 2) The flow rate in gtts/min using the formula mL/hr x Drop Factor / 60 min/hr 3) The volume infused over a given number of hours by multiplying the flow rate in mL/hr by the hours infused. The document works through examples of infusing 500mL over 6 hours,

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62 views3 pages

Ivt Computation

This document provides calculations to determine the flow rate in mL/hr and gtts/min for intravenous infusions of various fluids over specified periods of time. The calculations use the volume of fluid, infusion time, and drop factor to determine: 1) The flow rate in mL/hr using the formula mL/hr = Volume (mL) / Time (hours) 2) The flow rate in gtts/min using the formula mL/hr x Drop Factor / 60 min/hr 3) The volume infused over a given number of hours by multiplying the flow rate in mL/hr by the hours infused. The document works through examples of infusing 500mL over 6 hours,

Uploaded by

idunnoanymore
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© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Amount infused in ___hours

Doctor’s Order Flow rate (gtts/min) Cc/ hour


(amount infused in mL?)

Given: 4 hours:
Given:
Volume: 500 mL Given:
Volume: 500 mL
Time: 6 hours Amount infused in hours: 4hrs
Time: 6 hours
DF: 60 gtts/mL Cc/hr = 84mL/hr

Formula: Formula: Formula:


mL/hr x drop factor Volume (mL) Cc/hr x hrs infused
60 min
Time (hr)
D5W 500mL x 6 hours (DF:60) Solution:
Solution: Solution:
500 mL = 83.33mL/hr
500 mL = 83.33 mL/hr or 84 mL/hr 84 mL/hr x 4hr = 336 mL
6hr
6hr
83.33 mL/hr x 60gtts/mL = 83.33mgtts/min or 84 mgtts/min
60 min/hr Answer: 84 mL/hr Answer: 336 mL

Answer: 83.33 mgtts/min or 84mgtts/min

PNSS 1L x 8 hours (DF: 20)  Given: Given: 3 hours:


Volume: 1000mL Volume: 1000 mL Given:
Time: 8 hrs Time: 8 hrs Amount infused in hrs: 3hrs
DF: 20 gtts/mL Cc/hr = 125 mL/hr
Formula:
Formula: Volume (mL) Formula:
mL/hr x drop factor Time (hr) Cc/hr x hours infused
60 min

Solution: Solution: Solution:


1000 mL = 125mL/hr 1000 mL = 125 mL/hr 12mL/hr x 3hr = 375 mL
8hr
Answer: 375 mL
8hr
  Answer: 125mL/hr
125 mL/hr x 20 gtts/mL = 41.67 ugtts/min or 42 ugtts/min
60 min/hr

Answer: 42 uggts/min

Given:
Given: 6 hours:
Volume: 1000 mL
Volume: 1000 mL Given:
Time: 16 hours
Time: 16 hours Amount infused in hrs: 6hrs
DF: 15 gtts/mL
Cc/hr: 63 mL/hr

Formula: Formula:
Formula:
mL/hr x drop factor Volume (mL)
60 min cc/hr x hours infused
Time (hr)
D5LR 1L x 16 hours (DF: 15) Solution:
Solution:
1000 mL = 62.5mL/hr Solution:
1000 mL = 62.5 mL/hr or 63 mL/hr
16hr 63mL/hr x 6hrs = 378 mL
16hr
62.5 mL/hr x 15gtts/mL = 15.62 ugtts/min or 16 ugtts/min
Answer: 378 mL
60 min/hr Answer: 63 mL/hr

Answer: 16 ugtts/min

PLR 500mL x 4 hours (DF: 15) Given: Given: 3 hours:


Volume: 500 mL Volume: 500 mL Given:
Time: 4 hours Time: 4 hours Amount infused in hrs: 3hrs
DF: 15 gtts/mL Cc/hr: 125 mL/hr
Formula:
Formula:
Volume (mL) Formula:
mL/hr x drop factor
Time (hr) cc/hr x hours infused
Solution:
60 min 125 mL/hr x 3hrs = 375 mL
Solution:
Solution:
500 mL = 125 mL/hr 500 mL = 125 mL/hr
Answer: 375 mL
4 hr 4hr

125 mL/hr x 15gtts/mL = 31.25 ugtts/min or 32 ugtts/min Answer: 125 mL/hr


60 min/hr

Answer: 32 ugtts/min

Given:
Given: 8 hours:
Volume: 1000 mL
Volume: 1000 mL Given:
Time: 24 hours
Time: 24 hours Amount infused in hrs: 8hrs
DF: 15 gtts/mL
cc/hr: 42mL/hr

Formula: Formula:
Formula:
mL/hr x drop factor Volume (mL)
60 min Cc/hr x hours infused
Time (hr)
PNSS 1L x 24 hours (DF: 15) Solution:
Solution:
1000 mL = 41.67 mL/hr or 42 mL/hr Solution:
1000 mL = 41.67 mL/hr or 42 mL/hr
24 hr 42mL/hr x 8hrs = 336mL
24hr
42 mL/hr x 15gtts/mL = 10.5 ugtts/min or 11 ugtts/min
Answer: 336mL
60 min/hr Answer: 42 mL/hr

Answer: 11 ugtts/min

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