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Test Code PLTCNT Platelet Count, Blood, LAB301


Electronic Resistance Detection

Performing Laboratory

St. Luke's Hospital Cedar Rapids

Specimen Requirements


Preferred: 3mL EDTA whole blood (Lavender tube)
Specimen Volume: Minimum 1 mL of EDTA whole blood (vacutainer)

                                 Minimum 0.25mL of EDTA whole blood (microtainer)



Reference Values

0-6 days: 100-300 TH/mm3

7-14 days: 150-400 TH/mm3

15 days-10 years: 200-475 TH/mm3

≥11 years: 150-400 TH/mm3

Critical values

0-14 days: <50 TH/mm3 or >1,000 TH/mm3

>14 days: <30 TH/mm3 or >1,000 TH/mm3

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding


Useful For

Determination of platelet count