Reticulocyte

HA0201

Synonym(s):
Specimen Container
EDTA Tube
Specimen Requirement
Whole Blood
Adult: 3 mL blood 
Paediatrics and Neonate: 500 uL blood
Gently invert the tubes several times to prevent clotting. 
Specimen Storage/Transport

Send to laboratory as soon as possible after blood collection at room temperature.

Orderable as Urgent? No
Turn Around Time

Routine: 2 - 3 hrs

Reference Value(s)
Age GroupReference Ranges
Percentage (%)Absolute Value (x 109/L)
0 – 3 days3.47 – 5.40148.0 – 216.0
4 – 30 days1.06 – 2.3751.0 – 110.0
31 – 60 days2.12 – 3.4752.0 – 78.0
61 – 180 days1.55 – 2.7048.0 – 88.0
6 month – < 2 year0.99 – 1.8244.0 – 111.0
2 year – < 6 year0.82 – 1.4536.0 – 68.0
6 year – < 12 year0.98 – 1.9442.0 – 70.0
≥ 12 year (Male)0.20 – 2.00No reference interval
≥ 12 year (Female)0.20 – 2.00No reference interval
Testing Laboratory Location KKH
Laboratory Haematology
Contact Number 6394 1373
Day and Time Performed
Daily, 24 hrs
Orderable on CPOE? Yes
Downtime Form

63170-Form-1080 Haematology Laboratory Downtime Form

Change History Notes

  • 16 Sep 2024 12:00 PM

    ​Updated Turn Around Time.

  • 07 Feb 2023 12:00 AM

    ​Updated Specimen Storage / Transport, Downtime Form.

  • 23 Jul 2021 12:00 AM

    ​Reference interval updates.

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Last Updated - 18 Jun 2025