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| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Platelet Function Screen
Test CodePFA
Alias/See Also
PFA 100
CPT Codes
85576
Preferred Specimen
(2) 4.5ml Sodium Citrate tubes (1) EDTA
Minimum Volume
For minimum volume contact the Laboratory.
Instructions
Specimens must be hand-delivered to the laboratory. Use of 21 gauge needle is preferred for drawing and butterfly needles may not be used. The pneumatic tube system must not be used for specimen transport.
Also specimens must be kept at room temperature at all times.
It is vital that the specimen is treated gently. If it is agitated, the platelets will become activated and result in inaccurate results. Also, the larger bore of needle the better so as not to activate platelets.
Also specimens must be kept at room temperature at all times.
It is vital that the specimen is treated gently. If it is agitated, the platelets will become activated and result in inaccurate results. Also, the larger bore of needle the better so as not to activate platelets.
Transport Container
Sodium Citrate (blue top) and EDTA (lavender top)
Transport Temperature
Room temperature.
Specimen Stability
Room Temperature: 4 hours
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Specimens drawn with butterfly needles.
Methodology
Closure Time
Setup Schedule
Set up on receipt.
Report Available
Routine 4 hours and stat 1 hour.
Clinical Significance
This test replaces bleeding time testing.
