Need help with calculating drops/minute

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Hi guys. I've only started nursing this year. We haven't started drug calculation yet but I've been trying to do some anyways to prepare myself. I've come across this problem:

IV Ceftriaxone 1000mg is to be diluted with sodium chloride with total volume of 100mls. This is to beadministered over 30 minutes via Micro giving set. Calculate the drops/minute?

so should the calculation be like this:

1100 x 60 (micro)

30 minutes

=

??

Thanks guys

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Specializes in Critical Care, ED, Cath lab, CTPAC,Trauma.

yes......DosageHelp.com - Helping Nursing Students Learn Dosage Calculations - Volume/Time - IV Drop Rate Questions

[TABLE=class: fraction]

[TR]

[TD=class: numerator]Volume (mL) x Drop Factor (gtts/mL) = Y (Flow Rate in gtts/min)[/TD]

[/TR]

[TR]

[TD=class: denominator] Time (min) [/TD]

[/TR]

[/TABLE]

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Hi guys. I've only started nursing this year. We haven't started drug calculation yet but I've been trying to do some anyways to prepare myself. I've come across this problem:

IV Ceftriaxone 1000mg is to be diluted with sodium chloride with total volume of 100mls. This is to beadministered over 30 minutes via Micro giving set. Calculate the drops/minute?

so should the calculation be like this:

1100 x 60 (micro)

30 minutes

=

??

Thanks guys

If you meant

"100cc (NOT 1100cc!!) x 60gtt/cc

____

30 minutes "

You're correct.

You could think of this without too much work by realizing that with microgtt (60gtts/cc) tubing, gtts/min = cc/hr. Always.

100 cc to give in 1/2 an hour = 200 cc in one hour, therefore 200 microgtts/min.

:)

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Specializes in Pedi.
Hi guys. I've only started nursing this year. We haven't started drug calculation yet but I've been trying to do some anyways to prepare myself. I've come across this problem:

IV Ceftriaxone 1000mg is to be diluted with sodium chloride with total volume of 100mls. This is to beadministered over 30 minutes via Micro giving set. Calculate the drops/minute?

so should the calculation be like this:

1100 x 60 (micro)

30 minutes

=

??

Thanks guys

Not 1100 x 60. You only use the volume when calculating the rate in drops per minute or mL/hr. You don't add the dose in mg to the volume. The volume is 100 mL.

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Specializes in ED; Med Surg.

Yes, they always throw in the dosage to put you in a quandry...learning to take out what you don't need and concentrate on what you do need it the key to med math.

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