If the assay required is NOT listed then please contact the department directly. All results are reported with reference ranges and/or an interpretative comment. Advice on appropriate requesting and interpretation of results is available at all times from the Duty Biochemist.
*For full referral address refer to Appendix 1
| Test | Bottle | Reference range | Referral site* | Turnaround Time | Comments |
|---|---|---|---|---|---|
| Test CSF ACE |
Bottle
20 ml universal |
Reference range 0 – 1.2 umol/min/L | Referral site* QES | Turnaround Time 2 weeks |
Comments
Only available after discussion with Duty Biochemist |
| Test CSF AFP |
Bottle
20 ml universal |
Reference range | Referral site* | Turnaround Time 1 week |
Comments
Also send a serum (Brown) |
| Test CSF Glucose |
Bottle
Fluoride (Yellow) |
Reference range | Referral site* | Turnaround Time <8 hours* |
Comments
Also send plasma glucose |
| Test CSF HCG |
Bottle
20 ml universal |
Reference range | Referral site* | Turnaround Time 1 week |
Comments
Also send a serum (Brown) |
| Test CSF Lactate | Bottle Fluoride (Yellow) | Reference range 1.1 - 2.8 mmol/L | Referral site* | Turnaround Time <8 hours* | Comments |
| Test CSF Protein |
Bottle
20 ml universal |
Reference range 0.08 - 0.32 g/L | Referral site* | Turnaround Time <8 hours* |
Comments
Invalidated by any detectable blood |
|
Test
CSF Spectrophotometry (Xanthochromia) |
Bottle
CSF plain tube |
Reference range Interpretation with report | Referral site* |
Turnaround Time
Cut off 2pm for same day analysis |
Comments
Send fourth/final sample from LP. Protect from light |
|
Test
Faecal calprotectin |
Bottle
Random faecal specimen |
Reference range "recommended actions provided with result" | Referral site* | Turnaround Time 2 weeks |
Comments
Store (2-8ºC) before sending stable for 6 days before testing. DO NOT FREEZE |
|
Test
Faecal elastase |
Bottle
Random faecal specimen |
Reference range Interpretation given with report | Referral site* | Turnaround Time 1 week | Comments |
|
Test
Faecal Immunochemical Test (FIT) |
Bottle
FIT sampler obtained from GP stock system or lab |
Reference range
Patients with results >10ug/g should be referred via the 2 week wait pathway |
Referral site* | Turnaround Time 3 days |
Comments
Replaces FOB test. |
|
Test
Faecal Occult Blood |
Bottle
No longer available – see Faecal Immunochemical Test |
Reference range | Referral site* | Turnaround Time | Comments |
|
Test
Faecal reducing substances |
Bottle
No longer available – contact Duty Biochemist if you wish to discuss |
Reference range | Referral site* | Turnaround Time | Comments |
| Test 17 hydroxyprogesterone (17OHP) |
Bottle
Blood Spot |
Reference range Interpretation with report | Referral site* CAR | Turnaround Time 3 weeks |
Comments
Used to monitor paediatric patients on steroid replacement. Can also be measured in saliva. |
| Test Stone analysis | Bottle Clean dry stone in 20mL white top universal | Reference range Interpretation given with report | Referral site* UCLH | Turnaround Time 1 week | Comments |