haematology users' handbook - University College London Hospitals
haematology users' handbook - University College London Hospitals
haematology users' handbook - University College London Hospitals
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Routine Haematology (page 3 of 3)<br />
Reticulocytes<br />
Sickle Screen<br />
Test Specimen Type Reference<br />
ranges<br />
4.5ml EDTA<br />
Can be performed<br />
on FBC sample<br />
4.5ml EDTA<br />
(can be<br />
performed on<br />
same sample as<br />
FBC)<br />
Key Factors<br />
affecting tests<br />
20-100 x 10 9 /l Clot in sample<br />
Delayed sample<br />
receipt<br />
Samples from<br />
children < 6<br />
months old can<br />
give false negative<br />
results<br />
Notes<br />
Test can be added on to<br />
existing FBC sample (time<br />
limit: 24 hours)<br />
All samples for sickle screens<br />
are referred to Special<br />
Haematology for confirmation<br />
(if not previously confirmed)<br />
Out of<br />
hours<br />
service<br />
No service<br />
provided<br />
Service for<br />
clinically<br />
urgent<br />
requests<br />
Time Limit<br />
for<br />
requesting<br />
additional<br />
tests from<br />
time of<br />
venesection<br />
Within 24<br />
hours<br />
Within 7 days<br />
Turnaround time<br />
from receipt of<br />
sample<br />
8 hrs<br />
Urgent:<br />
1hr<br />
Nonurgent:<br />
24 hrs<br />
Anaemia<br />
Clot in sample<br />
Referral Laboratory (Malaria testing)<br />
Parasitology Laboratory<br />
Hospital for Tropical Diseases Building<br />
Capper St<br />
<strong>London</strong> WC1E 6JA<br />
0845 155 5000 ext 75418<br />
HAEM-PD-UserHbook V8 Haematology and Blood Transfusion User Handbook Page 12 of 38<br />
Authors: Karen Orfinada (Senior Biomedical Scientist)<br />
Sally McDonald (Senior Biomedical Scientist) Authorised by: Dave Barnett Review Date: August 2015
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