A cat on IV fluids must receive 30ml/hr of saline. The drip set provides 60gtt/ml. How many gtt/sec should the drip be?

gtt (probably from French goutte) is a drop.

So for a drip of 60gtt/ml, 1 gtt/min is equivalent to 1 ml/hr (60 gtt/hr).
Therefore 30 ml/hr is simply the same numerical value, 30 gtt/min (for a 60 gtt/ml drip).

I'll leave it to you to convert it to gtt/sec.

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To determine how many gtt/sec the drip should be, we need to convert the given hourly rate of 30ml/hr into gtt/sec using the provided drip set ratio of 60gtt/ml.

Here's the step-by-step process to calculate the required drip rate in gtt/sec:

1. Convert the given hourly rate to minutes: Since there are 60 minutes in an hour, multiply 30ml/hr by 60 to get 1800ml/min.
30 ml/hr * 60 min/hr = 1800 ml/min

2. Determine the number of gtt/ml for the given drip set ratio: The question states that the drip set provides 60gtt/ml.

3. Divide the total number of gtt/min by the gtt/ml ratio to get the required drip rate in gtt/min:
1800 ml/min / 60 gtt/ml = 30 gtt/min

4. Convert the gtt/min to gtt/sec: Since there are 60 seconds in a minute, divide the obtained gtt/min by 60.
30 gtt/min / 60 sec/min = 0.5 gtt/sec

Therefore, the drip rate should be set to 0.5 gtt/sec to deliver 30ml/hr of saline using a drip set providing 60 gtt/ml.