Source Website: http://www.dosagehelp.com/iv_rate_drop.html
By DosageHelp.com
Volume/Time - IV Drop Rate Questions
Formula:
Example: Calculate the IV flow rate for 1200 mL of NS to be infused in 6 hours. The infusion set is calibrated for a drop factor of 15 gtts/mL.
Convert 6 hours to minutes.
min ← hr ( x by 60 )
6 hr x 60 = 360 min
Example: Calculate the IV flow rate for 200 mL of 0.9% NaCl IV over 120 minutes. Infusion set has drop factor of 20 gtts/mL.
Question (16): (From Ngee Ann Polytechnics Dosage Caculation Worksheet)
ORDER: I/V Normal Saline 1000 mL over 24 hours. Drop Factor = 60 gtts/mL.
Convert 24 hours to minutes.
min ← hr ( x by 60 )
24 hr x 60 = 1440 min
Answer rounded to the nearest whole number = 42 gtts/min
Question (18): (From Ngee Ann Polytechnics Dosage Caculation Worksheet)
I/V D5% 1000 mL over 8 hours. Drop Factor = 20 gtts/mL.
Convert 8 hours to minutes.
min ← hr ( x by 60 )
8 hr x 60 = 480 min
Answer rounded to the nearest whole number = 42 gtts/min
Question (19): (From Ngee Ann Polytechnics Dosage Caculation Worksheet)
ORDER: I/V gentamycin 80 mg/100 mL N/Saline over 1 hour. Drop Factor = 60 gtts/mL.
Convert 1 hours to minutes.
min ← hr ( x by 60 )
1 hr x 60 = 60 min
Question (20): (From Ngee Ann Polytechnics Dosage Caculation Worksheet)
ORDER: I/V Osmofundin 20% 100 mL over 30 Minutes. Drop Factor 60 gtts/mL.
Continue (Go to Volume/Time - IV mL Rate Questions)
Reference
[1] Advanced Formatting, Ry’s MathML Tutorial, http://rypress.com/tutorials/mathml/advanced-formatting.
[2]MathML, Presentation MathML, https://en.wikipedia.org/wiki/MathML.
[3] MathJax in Blogger (II), Posted on Tuesday, 12 July 2011, http://irrep.blogspot.sg/2011/07/mathjax-in-blogger-ii.html
[4] MathJax, http://docs.mathjax.org/en/latest/start.html
[5] MathML Fundamentals (Colours), W3C recommendation, http://www.w3.org/TR/MathML/chapter2.html
By DosageHelp.com
Volume/Time - IV Drop Rate Questions
Given a certain amount of liquid, a time period, and a drop factor (gtts/mL), what is the necessary IV flow rate in gtts/min? Measurement used when IV is regulated manually. Because it is not possible to give a patient a fraction of a drop, it is typical to round answers for these problems up or down to the nearest whole number.
Formula:
Example: Calculate the IV flow rate for 1200 mL of NS to be infused in 6 hours. The infusion set is calibrated for a drop factor of 15 gtts/mL.
Convert 6 hours to minutes.
min ← hr ( x by 60 )
6 hr x 60 = 360 min
Example: Calculate the IV flow rate for 200 mL of 0.9% NaCl IV over 120 minutes. Infusion set has drop factor of 20 gtts/mL.
Question (16): (From Ngee Ann Polytechnics Dosage Caculation Worksheet)
ORDER: I/V Normal Saline 1000 mL over 24 hours. Drop Factor = 60 gtts/mL.
Convert 24 hours to minutes.
min ← hr ( x by 60 )
24 hr x 60 = 1440 min
Answer rounded to the nearest whole number = 42 gtts/min
Question (18): (From Ngee Ann Polytechnics Dosage Caculation Worksheet)
I/V D5% 1000 mL over 8 hours. Drop Factor = 20 gtts/mL.
Convert 8 hours to minutes.
min ← hr ( x by 60 )
8 hr x 60 = 480 min
Answer rounded to the nearest whole number = 42 gtts/min
Question (19): (From Ngee Ann Polytechnics Dosage Caculation Worksheet)
ORDER: I/V gentamycin 80 mg/100 mL N/Saline over 1 hour. Drop Factor = 60 gtts/mL.
Convert 1 hours to minutes.
min ← hr ( x by 60 )
1 hr x 60 = 60 min
Question (20): (From Ngee Ann Polytechnics Dosage Caculation Worksheet)
ORDER: I/V Osmofundin 20% 100 mL over 30 Minutes. Drop Factor 60 gtts/mL.
Continue (Go to Volume/Time - IV mL Rate Questions)
Reference
[1] Advanced Formatting, Ry’s MathML Tutorial, http://rypress.com/tutorials/mathml/advanced-formatting.
[2]MathML, Presentation MathML, https://en.wikipedia.org/wiki/MathML.
[3] MathJax in Blogger (II), Posted on Tuesday, 12 July 2011, http://irrep.blogspot.sg/2011/07/mathjax-in-blogger-ii.html
[4] MathJax, http://docs.mathjax.org/en/latest/start.html
[5] MathML Fundamentals (Colours), W3C recommendation, http://www.w3.org/TR/MathML/chapter2.html