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Published on February 02, 2018

Factor VIII 

SIM

20150 

CPT

85240 

Synonyms

 

Specimen Type

Sodium Citrate Plasma 

Container

Two tubes – 4.5 ml Sodium Citrate 3.2% Blue stopper tube

Collection Instructions

None

Volume

4 ml plasma
Min: 2.0 ml

Additional Information

Centrifuge at 3380 rpm’s (±100) for 5 minutes
If Plasma is removed, must be stored in Plastic tubes.

Patient Preparation

none

Specimen Processing Instructions

Freeze Plasma in Plastic Tubes

Transport Requirements

Refrigerated if within 4 hours or Frozen if longer.

Specimen Stability

Refrigerated Whole Blood: 4 hours;   Frozen Plasma: 1 month 

Rejection Criteria

•  Clotted Sample
•  Insufficient volume
•  Hemolyzed Plasma

Reference Range

Factor VIII = 30 – 100 % activity

Critical Value

None 

Test Includes

Factor VIII 

Methodology

Electromagnetic mechanical clot detection system 

Testing Frequency

7am - 7pm only, Daily, Monday - Sunday 

 

Reviewed By

Sandy Hammett 

Reviewed Date

2-2-18 

Supplemental

  

Reviewed by Sandy Hammett on February 02, 2018

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