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Test Code 1PLT Platelet Count

Additional Codes

EPIC LAB4163

Methodology

Sysmex XN-2000

Sample Type

Preferred Sample Type
Lavender top - EDTA Whole Blood

 

NOTE: Pateints that present with platelet satellitism (IgG antibody production in the presence of EDTA) may require sodium citrate whole blood to obtain an accurate platelet count. In this case, the automated platelet count should be multiplied by 1.1 to offset dilutional effects. 

Centrifuge: No

Specimen Minimum Volume

Closed tube: 1 mL

Open tube: 300 µL

Open microtube: 160 µL

Specimen Stability

Temperature Time
Ambient (18-25°C) (store) 24 hours
Refrigerated (2-8°C) 48 hours

 

Reference Ranges

Normal Ranges
0 - 1
month
1 - 12
months
1 - 2
years
2 - 10
years
>10
years
Units
140 - 450 150 - 650 150 - 550 150 - 450 150 - 400 109/L

 

Critical Values (In-patient)
Age Value Units
<1 month <20 or >998 109/L
>1 month <10 or >998

 

Critical Values (Out-patient)
Value Units
<20 or >998 109/L

Rejection Criteria

  • Clotted specimens
  • Short draws
  • Non-EDTA samples (sodium citrate samples ok for platelet enumeration only)
  • Grossly hemolyzed samples
  • Specimens outside of stability limits
  • Mislabeled/Unlabeled specimens

Availability

Performed STAT
24/7 Yes

 

Performing Laboratory

MultiCare Yakima Memorial Hospital Laboratory

Lab Department

Hematology

CPT Code

85049

LOINC

777-3 Platelets Auto (Bld) [#/Vol]