Production of rapid blood glucose results may be used to determine the presence of hypo- or hyper-glycaemia, and to monitor blood glucose levels in diabetic patients.
Please note that diagnosis of Diabetes Mellitus must not be made on the basis of a glucose result obtained from any blood glucose meter. All such interpretation must only be made on the basis of laboratory results.
apillary whole blood (e.g. finger-prick) or heparinised venous/arterial whole blood.
None required for finger-prick samples.
Samples must be analysed immediately.
The patient’s finger must be washed before finger-pricking to avoid contamination from glucose in food.
A result is produced within 20 seconds.
Fasting 2.5 6.0 mmol/L
Random 2.5 7.8 mmol/L
Serum or plasma samples cannot be used.
For glucoses <16.7 mmol/L the acceptable haematocrit range is 20 70%
For glucoses >16.7 mmol/L the acceptable haematocrit range is 20 60%
Paediatric results <3.8 mmol/L need to be checked using a different method (e.g. on a blood gas analyser or by the laboratory).
Use of alcohol wipes interferes with the analysis.
Finger-prick samples are not suitable for use in severe dehydration/ peripheral shutdown.
Results falling outside of the range 3.0 20.0mmol/L should ideally be checked with a laboratory measurement using a venous sample.
Time Limit for Additional Tests
Finger-prick samples can only be used once.
If the test result is questionable or if clinical signs and symptoms appear inconsistent with the test result, re-test with a fresh sample or confirm the result by sending a sample to the laboratory.
The test should only be carried out by a trained member of staff.If you have not been trained please see your ward based link nurse or contact the POCT team (x 8382) for training.