a math Q

Rach10388 · Aug 13, 2011

a client has D5 1/2 NaCl 1,000 ml to run 12 hr. the drip factor on the delivery tubing is 15 gtts/min. the nurse should adjust the IV at?
a. 12 gtts/min
b. 21 gtts/min
c. 25 gtts/min
d. 34 gtts/min
Thanks!

gtt/min = 15 gtt/ml..1000ml/12 hr...1 hr/60 min= 20.8333 = 21 gtt/min

joe17 · Aug 13, 2011

1000ml. X 15Gtts/min=1500. 12hrs x60 min/hrs=720. Then 1500 divide 720 = 20.8=21Gtt/min

dontra07 · Aug 13, 2011

short cut method: 1000 divide 12 divide 4 = 20.8 or 21gtt/min

formula: if drop factor is 15 use divide 4

if drop factor is 20 use divide 3

if drop factor is 10 use divide 6

Iammblessed2011 · Aug 14, 2011

The answer is B. 21gtt/min

oh btw should 15gtt be over 1ml and not 1min. just out of curiosity.

neurontin · Aug 14, 2011

1000ml. X 15Gtts/min=1500. 12hrs x60 min/hrs=720. Then 1500 divide 720 = 20.8=21Gtt/min

1000ml * 15 gtts/min = 15,000 not 1500;

In addition, 15 gtts/min cannot multiply 1000 ml unless it would be 15 gtts/ml.

neurontin · Aug 14, 2011

gtt/min = 15 gtt/ml..1000ml/12 hr...1 hr/60 min= 20.8333 = 21 gtt/min

There are 15 gtts/MIN rather than 15 gtts/ML according to the question.

neurontin · Aug 14, 2011

The answer is B. 21gtt/min
oh btw should 15gtt be over 1ml and not 1min. just out of curiosity.

This was what I thought when I did the question, but it asks 15 gtts/MIN.

The question is from QtrainerI.

Double-Helix, BSN, RN · Aug 14, 2011

Drop factors are never gtts/min. Gtts/min is a rate and can be changed. Drop factors are standard for the tubing and remain constant. I'd say it's a question typo.