Test Code LAB301 Platelet Count, Blood
Reporting Title
Platelet
Methodology
Automated Multiparameter Hematology Analyzer
Useful in evaluation of bleeding disorders.
Note: Platelet count is included in LAB294 “Complete Blood Count (CBC).”
Performing Laboratory
OhioHealth Laboratory Services-RMH, GMC, DH, DMH, MGH, GMH, HMH, GCMH, DHC, WECC, PMC, MH, SH and OBH Core Laboratories.
Specimen Requirements
Draw blood in a lavender-top (EDTA) tube(s), and send EDTA whole blood. Mix by gently inverting 8 times. Do not centrifuge. Forward unprocessed whole blood promptly at ambient temperature only. Do not refrigerate.
Note: Platelet clumping may cause spuriously decreased counts.
Specimen Transport Temperature
Ambient/Refrigerate NO/Frozen NO
Reference Values
Newborn-1 week: 100-478 K/mcL
2 weeks: 150-400 K/mcL
Critical values
Red category conditions complete alert within 1 hour (initial result only)
Neonates: <50 K/mcL or >1,000 K/mcL
Inpatients: <50 K/mcL or >1,000 K/mcL
Outpatients: <50 K/mcL or >1,000 K/mcL
Oncology patients: <15 K/mcL or >1,000 K/mcL
Note: First instance = no critical value in the same result range (high vs. low) in the last 5 days.
Day(s) Test Set Up
Monday through Sunday; Continuously
Test Classification and CPT Coding
85049