Blood Tube supplies
The laboratory supplies phlebotomy materials to wards and GP practices. A topping-up service is provided during the week to wards. GP practices should requisition stocks on the appropriate form. It is important that expiry dates on blood tubes are reviewed regularly and any stock that is close to the expiry date should be returned to the Pathology laboratory where prompt use will prevent wastage.
Blood collection
Please use only Vacuette system to collect blood samples rather than using a needle and syringe. Artefactual results may be obtained when using a syringe and then decanting the blood into Vacuum tubes, it is much more expensive and less safe. Safety blood collection sets (butterflies) with 30cm tubing combined with a dedicated holder should be used to collect samples for Blood Cultures. Other tubes can be filled after the Blood Cultures using the same collection set, but it is imperative that the Blood Culture bottles are inoculated first.
To ensure that requests are dealt with effectively, it is essential to comply with the following guidelines. Specimens should be placed in the appropriate containers which must be securely fastened.
The vacuum tube system has many advantages:
Mixing of the correct volume of blood and anticoagulant is instantaneous.
Wide selection of bottles available with different volumes and anticoagulants.
Syringes are not required and the volume of blood needed does not have to be calculated in advance.
Closed sampling is safer on the wards and in the laboratory.
Adaptors for use with butterflies are available for:
'difficult veins'
patients who cannot keep still
situations where continued venous access is required
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