Nasogastric tube feeding--which syringe size produces lower pressure and is safest to use?
BACKGROUND
For this research, we worked on the hypothesis that larger syringe sizes would not generate greater pressures (negative or positive) than smaller ones. This contradicts current practice and theory, which states that larger syringes produce lower pressures and are safer.


OBJECTIVE
To establish the most appropriate syringe size in a laboratory experiment.


METHODS
We attached a manometer to a syringe with and without nasogastric tubes and measured negative pressures generated when aspirating, and positive pressures generated when injecting fluids.


RESULTS
The findings suggest that smaller syringes generate lower pressures; further research is needed to confirm this.


CONCLUSIONS
If we are correct there is a patient safetyissue, which must be addressed urgently. Also, smaller syringes may lead to significant cost savings.
Knox
Tony
T
Paediatric Unit, Royal Berkshire NHS Foundation Trust.
Davie
John
J
D004750:Enteral Nutrition / Q000295:instrumentation*; D004869:Equipment Safety; D006801:Humans; D007441:Intubation, Gastrointestinal / Q000295:instrumentation*; D008365:Manometry; D011312:Pressure; D013594:Syringes