Procedure for Requesting Additional Blood Sciences Tests
(Biochemistry, Haematology and Immunology)
We are aware that on occasion it is necessary to request additional tests for a sample already in the laboratory.
We will accommodate additional requests where possible, provided that:
- The appropriate specimen type with sufficient sample remaining is available for the requested test.
- The test does not require special specimen handling.
Contact Blood Sciences
- Core Hours (Weekdays 8am – 10pm, weekends and Bank holidays 8am – 4pm) Call 0117 4148383 (ext. 48383), Select option 1
- Out of Hours (All days 10pm – 8am, weekends and Bank Holidays 4pm – 10pm)
NOTE – Additional test requests out of hours should only be made if the results will affect immediate patient management.
- Bleep the relevant department (this can be found in Test Information), Biochemistry (nos. 9436 or 9437) or Haematology (no. 9433).
To request an additional test, please provide following information:
- Sample Number (available on ICE, instructions here-
Finding the Sample Number.pdf330.21 KB
- Name of patient
- Tests to be added
- Name and phone number of requestor
If the add-on test is urgent ensure this is communicated to the lab when requesting the add-on.
Guidelines for Additional Requests
|
Unstable! – add-ons are NOT appropriate |
Within 24 hours of venepuncture |
Within 48 hours of venepuncture |
Up to three days after |
|---|---|---|---|
|
Ammonia |
Coagulation (DIM, INR, CSC) |
Haematology tests – FBC, RET, PV and GF. |
U&E, LFTs |
|
Bicarbonate |
CSF Lactate |
Vitamin B12 |
Bone, Mg |
|
Lactate (unless fluoride tube) |
Troponin T |
Folate |
TFTs |
|
Anti-Mullerian Hormone |
Malaria Parasites (include travel details) |
Digoxin |
BNP |
|
Mesothelin |
Requests for Film Reviews (FR), IFAB and EPO are not to be requested on Winpath but should be noted on separate add-on sheet and passed to Haem who will process/DUF as appropriate. Phone callers to be informed of this. |
PTH (EDTA Tube) |
Lipids |
| CH50/AP50 |
Conjugated/Direct Bilirubin |
|
Cortisol, hCG, LDH, Lipids, |
|
C1 Esterase Inhibtor |
|||
| Any Chemistry test that needs to be referred frozen |
Please note that requesting an additional test is not appropriate for Antimicrobial or Microbiology assays.