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Test Code Retic Reticulocyte Panel

Collection Method

Venous draw, Capillary Draw

Minimum Volume

Adult: 1 mL, Pediatric 300 uL

Container

Purple (EDTA)

Preferred Specimen

Whole Blood

Acceptable Specimens

EDTA Whole Blood, BD EDTA MAP tube

Reference or Target Ranges

Retic %
Age Male Female
0 days to <4 days 2.2 – 4.8 2.1 – 3.7
4 days to <31 days 0.4 – 2.7 0.4 – 2.0
31 days to <61 days 0.9 – 3.8 1.5 – 3.2
61 days to <181 days 0.9 – 3.1 1.1 – 2.9
181 days to <2 years 0.8 – 2.0 0.9 – 2.0
2 years to <6 years 0.8 – 2.0 0.8 – 2.1
6 years to <12 years 0.7 – 2.2 0.8 – 2.8
12 years to <18 years 0.8 – 2.2 0.8 – 2.2
18 years to <Adult 1.1 – 2.7 0.9 – 2.4
Retic # (x1012/L)
Age Male Female
0 days to <181 days 0.037 – 0.104 0.052 – 0.120
181 days to <2 years 0.029 – 0.089 0.035 – 0.092
2 years to <6 years 0.029 – 0.080 0.043 – 0.083
6 years to <12 years 0.039 – 0.106 0.037 – 0.093
12 years to <18 years 0.039 – 0.100 0.040 – 0.102
18 years to <Adult 0.055 – 0.141 0.041 – 0.112
Chr (pg) / Ret Hg
Age Male Female
0 days to <2 years 22.5 – 31.8 23.9 – 30.9
2 years to <6 years 25.1 – 32.0 26.4 – 32.1
6 years to <12 years 23.6 – 33.9 25.1 – 33.3
12 years to <18 years 27.0 – 33.2 28.2 – 33.9
18 years to <Adult 29.0 – 35.3 27.5 – 34.2

Reportable Units

Retic %

Reasons for Rejection

Hemolysis Threshold N/A
Icterus Threshold N/A
Lipemia Threshold N/A
Other Clotted; QNS, Contaminated, Improperly labeled

Specimen Stability

Ambient Up to 24 hours at room temperature
Refrigerated (4°C to 8°C) 24 Hours
Frozen(-70°C to 0°C) N/A

Performance Information

Days and Time Performed 24/7
Expected Turn Around Time Stat within 1 hour of arrival in lab
Expedite within 2 hours of arrival in lab
Routine within 4 hours of arrival to lab
Stat Availabilty Yes
Performing Bench UH, WCH Hematology
Methodology/Method Description Sysmex – Retics are evaluated using flow cytometry with a semiconductor laser exploiting the differences in cell size, complexity and RNA/DNA content

Special Handling

Room Temp

CPT Codes

85046