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 Analysis

Message

Important Note


Sample must be collected at Inova Fairfax Medical Campus (outpatient or inpatient).


Test Code
PFA


Preferred Specimen

Patient Preparation: 


Specimen Type: Whole Blood Sodium Citrate


Collection Container/Type: 2x Light-blue (citrate)


Submission Container/Tube: Submit sample in original collection container.


Specimen Volume: Two light-blue (citrate) 2.7 mL tubes, completely filled to obtain a 9:1 ratio.


Collection Instructions: 



  1. Venipuncture should be performed using a 21-gauge or larger needle.

  2. Blood should be drawn directly into an evacuated plastic or siliconized glass tube or syringe containing 3.2% (0.1 05M) buffered sodium citrate (1 part anticoagulant to 9 parts blood).

  3. After sample collection, ensure proper mixing of anticoagulant by gently inverting the tube by hand 3 to 4 times. 

  4. Discard the sample if there is a venous collapse or stoppage of blood for collection.

  5. The collection method (both citrate concentration and venipuncture method) should be kept consistent.  Use of unbuffered sodium citrate anticoagulant is not recommended.

  6. Do not refrigerate samples.

  7. Samples must be walked down directly to the lab.  Do not use the tube station.


Additional Information:



Specimen Stability

Room temperature: 4 hours


Refrigerated: Unacceptable


Frozen: Unacceptable



Performing Laboratory

Inova Fairfax Medical Campus Laboratory

3300 Gallows Rd.

Falls Church, VA 22042




Last Updated: December 20, 2023


The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.