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Option 1 : 42 drops/minute
Concept:-
- The IV drip rate is a way of describing the rate of intravenous infusion based on the number of drops (gtt) administered per minute to the patient.
- Drops/min = (drop factor) × times (Hourly Infusion Rate) × times (time)
- Drops/min = Drops/ml × times ml/hour × times 1 hour
Canceling the labels,
We get,
- Drops per minute = (Drop factor / Hour) × times Hourly Infusion Rate
- Drops per minute = (500/12) × times 1 = 41.66 \approx. 42
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Gravity Flow Rate Drip Chart |
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|
Flow Rate (mL/hr) |
10 gtt/mL (drops/min) |
15 gtt/mL (drops/min) |
20 gtts/mL (drops/min) |
60 gtts/mL (drops/min) |
|
10 |
2 |
2 |
3 |
10 |
|
25 |
4 |
6 |
8 |
25 |
|
50 |
8 |
12 |
17 |
50 |
|
75 |
12 |
19 |
25 |
75 |
|
100 |
17 |
25 |
33 |
100 |
|
125 |
21 |
31 |
42 |
135 |
|
150 |
25 |
37 |
50 |
150 |
|
200 |
33 |
50 |
67 |
200 |
|
250 |
42 |
62 |
83 |
250 |
|
500 |
83 |
125 |
167 |
500 |
|
1,000 |
167 |
250 |
333 |
1,000 |
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