Question

A 7% DEXTROUS SOLUTION (7 MG PER 100 ML OF SOLUTION) IS GIVEN INTRAVENOUSLY SUPPOSE A TOTAL OF 1.61L OF THE SOLUTION IS GIVEN OVER A 14 HOUR PERIOD.

A) WHAT IS FLOW RATE IN UNITS OF ML/HR?

B) WHAT IS FLOW RATE IN DEXTROUS PER HOUR?

C) IF EACH ML CONTAINS 16 DROPS WHAT IS THE FLOW RATE IN UNITS OF GTT/HR?

D) DURING THE 14 HOUR PERIOD HOW MUCH DEXTROUS IS DELIVERED?

Answer 1

Solution:-

Given, A 7% DEXTROUS SOLUTION (7 mg PER 100 ml OF SOLUTION) IS GIVEN INTRAVENOUSLY .

A TOTAL OF 1.61L OF THE SOLUTION IS GIVEN OVER A 14 HOUR PERIOD.

Now, 1 L = 1000 ml

1.61 L = 1.61×1000 ml

=1610 ml

A) FLOW RATE (ml/hr) =volume of solution in ml / infusion time in hr

=1610 ml/14 hr

=105 ml/ hr

(B) Dextrous solution 7 mg/100 ml means:

100 ml solution contain 7 mg dextrous

1 ml solution contain = 7/100 mg dextrous

1610 ml solution contain= (7/100)×1610 mg dextrous

=112.7 mg dextrous

FLOW RATE ( DEXTROUS PER HOUR) = total dextrous in mg present in 1.61 L solution/infusion time in hr

=112.7 mg/14 hr

=8.05 mg/hr

(C) drop factor= 16 drops/ml

1 ml contain 16 drops

1610 ml contain =16 ×1610 drops

=25760 drops(gtts)

Flow rate ( gtt/hr) = total drops in 1.61 L/ infusion time in hr

=25760 gtts/14 hr

=1840 gtts/hr

(D)

Dextrous solution 7 mg/100 ml means:

100 ml solution contain 7 mg dextrous

1 ml solution contain = 7/100 mg dextrous

1610 ml solution contain= (7/100)×1610 mg dextrous

=112.7 mg dextrous

1610 ml= 1.61 L

This 1.61 L solution has to be infuse over 14 hr.

Dextrous contain in 1.61 L solution = 112.7 mg

So, 112.7 mg dextrous is delivered over 14 hr