Laboratory Medicine

Test catalogue

Reticulocytes Count (Retics)
Test Name Reticulocytes Count (Retics)
Specimen Type / Requirements p>Container Type = Lavender Minimum Venous Volume (Lavender) = 1mL whole blood Minimum Testing Volume (Pink Microtainer tube) = 250µL whole blood.
Specimen Handling Collection Instructions: Collect sample in a lavender top and send to core lab. Sample should be well mixed at time of collection to prevent platelet clumping. Write your initials, date and time of collection on the collection label. Stability: Reticulocyte count should be done within 24 hours if stored at room temperature and 72 hours if stored at 2 to 8°C due to in vitro maturation Transportation: Transport at room temperature as soon as possible. Sample Rejection Criteria: Plasma, clotted sample, unlabeled or samples of non sufficient quantity.
Required Documentation
Turnaround Time (TAT) 30mins: STAT, 4hrs: routine	Test Utilization
Reference Value Age: 0 – 24 hours: 200 – 300 x 10E9/L Age: 2 - 6 days: 15 – 250 x 10E9/L Age: 7 – 29 days: 5 – 50 x 10E9/L Age: 30 – 59 days: 5 – 100 x 10E9/L Age: 60 – 89 days: 5 – 150 x 10E9/L Age: 90 – 179 days: 5 – 250 x 10E9/L Age: 180 – 364 days: 10 – 100 x 10E9/L Age: 1 – 13 years: 10 – 100 x 10E9/L Age: 14 - 99 years (M or F) 38-116 X x 10E9/L	RET HE : 29.3-35.8PG IRF (M) : 2.3-13.4% IRF(F) :3.0-15.9%
Test Code RET (includes CBC)	Methodology Flow Cytometry
Testing Location SMH-Haematology	Other Information Last Updated: March 21, 2022

Reticulocytes Count (Retics)

Test Name

Reticulocytes Count (Retics)

Specimen Type / Requirements

p>Container Type = Lavender

Minimum Venous Volume (Lavender) = 1mL whole blood

Minimum Testing Volume (Pink Microtainer tube) = 250µL whole blood.

Specimen Handling

Collection Instructions: Collect sample in a lavender top and send to core lab. Sample should be well mixed at time of collection to prevent platelet clumping. Write your initials, date and time of collection on the collection label.

Stability: Reticulocyte count should be done within 24 hours if stored at room temperature and 72 hours if stored at 2 to 8°C due to in vitro maturation

Transportation: Transport at room temperature as soon as possible.

Sample Rejection Criteria: Plasma, clotted sample, unlabeled or samples of non sufficient quantity.

Required Documentation

Turnaround Time (TAT)

30mins: STAT, 4hrs: routine

Test Utilization

Reference Value

Age:

0 – 24 hours: 200 – 300 x 10E9/L
Age: 2 - 6 days: 15 – 250 x 10E9/L
Age: 7 – 29 days: 5 – 50 x 10E9/L
Age: 30 – 59 days: 5 – 100 x 10E9/L
Age: 60 – 89 days: 5 – 150 x 10E9/L
Age: 90 – 179 days: 5 – 250 x 10E9/L
Age: 180 – 364 days: 10 – 100 x 10E9/L
Age: 1 – 13 years: 10 – 100 x 10E9/L
Age: 14 - 99 years (M or F) 38-116 X x 10E9/L

RET HE : 29.3-35.8PG

IRF (M) : 2.3-13.4%

IRF(F) :3.0-15.9%

Test Code

RET (includes CBC)

Methodology

Flow Cytometry

Testing Location

SMH-Haematology

Other Information

Last Updated: March 21, 2022