Terms  Definitions 

two categories of drip sets 
(1) minidrip
(2) regular drip 
two types of minidrip sets 
(1) microdrip set
(2) pediatric set 
two type of regular drip sets 
(1) macrodrip set
(2) adult set 
four common drip to ml ratios (drip factors) 
60 gtts/ml (mini)
10 gtts/ml (regular) 15 gtts/ml (regular) 20 gtts/ml (regular) 
How many 60 minute periods are in an hour? 
1

How many 10 minute periods are in an hour? 
6

How many 15 minute periods are in an hour? 
4

How many 20 minute periods are in an hour? 
3

CALCULATE DROPS PER MINUTE WHEN GIVEN THE ML/HR If using a 10 gtts/ml set, you would divide the milliliters to be infused per hour by ______. 
6

CALCULATE DROPS PER MINUTE WHEN GIVEN THE ML/HR If using a 60 gtts/ml set, you would divide the milliliters to be infused per hour by ______. 
1

CALCULATE DROPS PER MINUTE WHEN GIVEN THE ML/HR If using a 15 gtts/ml set, you would divide the milliliters to be infused per hour by ______. 
4

CALCULATE DROPS PER MINUTE WHEN GIVEN THE ML/HR If using a 20 gtts/ml set, you would divide the milliliters to be infused per hour by ______. 
3

What is a useful formula for calculating drip rate (DPM) when a known volume of fluid must be delivered over a given timeframe? 
VTA * DF
 TIM 
You know the drops per hour. How would you calculate drops per minute? 
gtts/hr ÷ 60

You know the drops per minute. How would you calculate drops per second? 
gtts/min ÷ 60

You know the drops per minute. How would you calculate drops per hour? 
gtts/min X 60

You know the drops per second. How would you calculate drops per minute? 
gtts/sec X 60

Medical control will most commonly give you fluid amounts to administer in this ratio. 
ml/hr

How many milligrams are in 2 grams? 
2000 mg

How many grams are in 500 milligrams. 
1/2 gram
(0.5 gram) 
1 gram is how many milligrams? 
1000 mg

1000 mg is how many grams? 
1 gram

35 grams is how many milligrams? 
35,000 mg

To convert from grams to milligrams, how many zeros do you add? 
three

To convert from milligrams to grams, how do you adjust the decimal point? 
move three places to the left

abbreviation for drops 
gtts

What is the formula for calculating Volume to be Administered (VTA)? 
VOH*DD
 DOH 
What is VOH? 
Volume on Hand

What is a useful formula for calculating the drip rate (DPM) needed to maintain a given dose per minute? 
VOH*DF*DD
 DOH 
What is DF? 
Drip Factor

What is DD? 
Desired Dose

What is DOH? 
Dose on Hand

What is VTA? 
Volume to be Administered

What is DPM? 
Drops per Minute

In both VTA and DPM formulas, what is always positioned at the upper left? 
VOH

In both VTA and DPM formulas, what is always positioned at the upper right? 
DD

In both the VTA and DPM formulas, what is always positioned at the bottom center? 
DOH

In the DPM formula concerned with calculating perhr/min maintenance drips, what factor is added to the top center between VOH and DD? 
DF(drip factor)

If you know how to calculate VTA, what is the single factor you need to add to the formula to calculate DPM? 
add DF to the top center between VOH and DD

What is TIM? 
Time in Minutes

What is a Drip Factor (DF)? 
gtts/min of the particular drip set you're using

three kinds of drug calculations that are useful to paramedics 
The first is concerned with finding the Volume to be Administered. The other two pertain to calculating drip rates for either "perhr/min" or "volumeovertime" infusion orders.
(1) VTA  find Volume to be Administered (2) gtts/min  when the per hr/min dosage is given (3) gtts/min  for volume over a given timeframe 
With a standard microdrip set (60 gtts/ml), the number of drops administered per minute always equals... 
the milliliters delivered per hour.

How many ml/hr will a microdrip set to 30 gtts/min deliver? 
30 ml/hr

How many ml/hr will a microdrip set to 43 gtts/min deliver? 
43 ml/hr

How many ml/hr will a microdrip set to 28 gtts/min deliver? 
23 ml/hr

How many ml/hr will a microdrip set to 120 gtts/min deliver? 
120 ml/hr

If you needed to administer exactly 75 ml/hr via a microdrip set, how many drops per minute would you administer? 
75

If you needed to administer exactly 12 ml/hr via a microdrip set, how many drops per minute would you administer? 
12

If you needed to administer exactly 180 ml/hr via a microdrip set, how many drops per minute would you administer? 
180

To find the amount of a drug per milliliter (mg/ml) in a given solution, what mathematical operation would you perform? 
divide the total amount of the drug (eg: mg) by the total volume of the solution (eg: ml)

Prior to dividing the amount of a drug by the volume of a solution, you may need to make what adjustment to the drug amount? 
convert it to the same measure that is specified in the orders (eg: gram to milligram, milligram to microgram, etc.)

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