Question

3. A patient receives 40 gtt/min of an IV solution. (a) How many milliliters per minute does the patient receive if the nurse is using an IV set calibrated at 15 gtt/mL? ) How many milliliters of fluid does the patient receive daily if the nurse is using the IV set in item (a)?

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Answer 1

Answer 3.

Order= 40 gtt/ min

Drip rate = gtt/ ml= 15 gtt/ml.

FORMULA

= ml / hr X drop factor ( gtt/ ml) = gtts/ min

as we do not ned to calculate in min because our question is already in minute.

= ml / min X drop factor ( gtt/ ml) = gtts/ min

ml/min ( to be calculated)

drop factor= 15 gtt/ml

gtts / min= 40 gtts/min

ml / min X drop factor ( gtt/ ml) = gtts/ min

ml/min X 15 gtt/ml = 40 gtts / min

ml/min= 40 gtt / min / 15 gtt/ ml

= 2.66 ml/min

hence, 2.66 ml/ min the patient will receive.

b. answer.

the amount of fluid that patient will receive daily is

1 day = 24 hours

24 hours = 1440 minutes

the patient is receiving 2.66 ml/ min

so, in 1440 minutes the patient will receive the amount of fluid is

= 1440 min X 2.66 ml / min

= 3830.4 ml of fluid,

will be received by the patient in 24 hours or 1440 minutes or in one day or daily.

  

c. answer.

available bag of fluid = 1 litre.

the amount that is to be administered = 3830.4 ml in 24 hours ( from answer b)

1 litre = 1000 ml = 1 bag

3 litre= 3000 ml = 3 bags

3.9 = 3900 ml= 4 bags

to administer 3830.4 ml in 24 hours will be = 1000ml ( 1 bag) X 4 = 4000ml = 4 bags of fluid.

but, 4th bag will be remained left with approximately 100 ml of fluid as we only need 3830 ml of fluid.

d. answer.

availability = 1gram in litre

To calculate the amount of drug patient receives per hour

TO CONVERT 1 GM IN MG

1GM = 1000 MG

THE PATIENT IS RECEIVING APPROXIMATELY

4 LITRES OF FLUID IN 24 HOURS

   1 LITRE OF FLUID WILL BE ADMINISTERED IN = 24/4 = 6 HOURS.

  6 HOURS.=1000 ML

1 HOUR = 1000 / 6 = 166 ML

ALSO, 1 LITER = 1000 ML WHICH CONTAINS 1000 MG ( given)

1000 ML= 1000 MG

1 ML= 1000 / 1000 = 1 MG

166 ML = 166 X 1 MG= 166 MG

166 ML OF FLUID CONTAINS 166 MG OF DRUG.

FORMULA,

   RATE = AMOUNT OF DRUG / TIME IN HOUR

     = 166 MG/ 1 HOUR

= 166 MG /HR, DRUG WILL BE ADMINISTERED

SO, THE PATIENT IS RECEIVING 166 MG DRUG IN ONE HOUR.

  

d. answer.

The microgram of drug administered per minute from the above answer

the amount of drug = 166 mg / 1 hr

To convert 1 hr into minutes= 1X 60   (as 1 hour = 60 minute)

= 60 min

   To convert,  166 MG into MCG = 166 x 1000mcg = 166000

   = 166000 mcg

IN 60 MIN = 166000 MCG

IN 1 MIN = 166000 / 60

= 2766.6 mcg / min.

hence, the amount f drug that will be administered in 1 min is 2766.6 mcg.