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Counted drip rates vary widely between paramedics
The Accuracy and Precision of Gravity-Driven Infusions
Prehospital Emergency Care · 2026-11-03 · Added 5 November 2026
In a controlled US laboratory simulation, 55 paramedics setting nine drip rates on a standardised gravity set produced overall flow errors from -45.3% to +5.8%, with imprecision driven mainly by human counting and whole-number target rates more accurate than fractional ones.
- Study type
- Simulation
- Design
- Controlled laboratory simulation
- Participants
- 55 paramedics, nine drip rates each
- Main finding
- Overall inaccuracy ranged from -45.3% to +5.8%; imprecision was primarily human; 1 gtt/s targets more accurate than all others (absolute error 31.1% vs 48.5%); whole-number rates more accurate than fractional (40.7% vs 54.1%)
- Caveat
- Laboratory setup with a standardised giving set; field conditions, movement and different tubing not tested
- Bottom line
- Hypothesis-generating
Why it matters in Australia (High relevance). Gravity sets and counted drip rates are standard kit on Australian ambulances, so these accuracy numbers apply directly to crews.
Learning goal
Refine my technique for setting and counting gravity-driven infusion rates to reduce dosing error in the field.
More
- Topic: Other
- Daily scan: 5 November 2026
- Podcast: Paramedic Papers Daily, 5 November 2026
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