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Platelet Count
MessageTest performed at York Hospital Laboratory.
Test Code
PLTC
CPT Codes
85049
Preferred Specimen
0.5 mL Whole Blood
Instructions
Tube must be filled to the bottom of the attached label for accurate results.
If the patient has a history of platelet clumping, a full light blue 3.2% sodium citrate tube should also be drawn.
If the patient has a history of platelet clumping, a full light blue 3.2% sodium citrate tube should also be drawn.
Transport Container
Lavender Top EDTA Tube
Transport Temperature
Refrigerated
Specimen Stability
Room temperature: 4 hours
Refrigerated: 36 hours
Frozen: Not recommended
Refrigerated: 36 hours
Frozen: Not recommended
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolyzed specimen
Clotted specimen
Clotted specimen
Methodology
Sysmex XT-4000i or Sysmex XS-1000i
Setup Schedule
Daily
Report Available
Next Day
Reference Range
150-450 K/uL
Critical Values
< 30.0 or > 900.0 K/uL
Critical Values
< 30.0 or > 900.0 K/uL
Clinical Significance
Causes of abnormal platelet counts include diseases of the bone marrow, long-term bleeding problems, gram-negative sepsis, some autoimmune disorders, and renal disease.
