Follow manufacturers' instructionsBMJ 1994; 309 doi: https://doi.org/10.1136/bmj.309.6968.1583b (Published 10 December 1994) Cite this as: BMJ 1994;309:1583
- Michael Harmer
- Director of acute pain service University Hospital of Wales, Cardiff CF4 4XW.
EDITOR,—Siphoning from the syringe of a patient controlled analgesia device into the patient, reported by D A Southern and M S Read,1 is a well known potential problem and was first clearly described by Thomas and Owen.2 Southern and Read quote this reference but do not give due explanation.
I was surprised …