Platelet Count (PLTC): CPT 85049

CPT Code: 

85049 

Specimen:  

Whole blood

Volume:  

Tube fill capacity

Minimum Volume: 

0.5 mL 

Container:   

Lavender-top (EDTA) tube

Methodology: 

Automated cell counter

Collection: 

Invert tube immediately 8 to 10 times once tube is filled at time of collection

Reference Range:          

Males  150-450 103/µL 
Females  150-450 103/µL 

    

Storage: Maintain specimen at room temperature.

 

Stability:      

Temperatures  Period 
Room Temperature  1 Day 
Refrigerated  3 Days 
Frozen  Unstable 
Freeze/thaw cycles Unstable

 

Use:    Platelets play a vital role in the blood clotting process. The platelets stop bleeding by sticking together and forming “plugs.” A variety of disease conditions can cause low numbers of platelets; these individuals tend to bleed more easily and excessively. Extremely low or high platelet counts may indicate blood disorders which require additional testing. 

Causes for Rejection:

 
 

Hemolysis; clotted specimen; tube not filled with minimum volume; improper labeling; transfer tubes with whole blood; specimen diluted or contaminated with IV fluid; specimen received with plasma removed; specimen collected in any anticoagulant other than EDTA)