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Test Code F9 INH Factor 9 Inhibitor Level

Important Note

Order this test if the patient has had a previously positive Factor 9 Inhibitor Screen and/or Titer. Available STAT with pre-approval.

Clinical System Name

Factor 9 Inhibitor Level

Synonyms

Factor 9 Inhibitor

Factor IX Inhibitor

Factor 9 Inhibitor Titer

Factor IX Inhibitor Titer
Factor 9 Inhibitor Level

Factor IX Inhibitor Level

Factor 9 Bethesda
Factor IX Bethesda

Sample Requirements

Specimen: Whole Blood

Container(s): Lt. Blue/Citrate

Preferred Vol: (3) 1.8 mL or (1) 2.7 mL

Minimum Vol: (2) 1.8 mL

 

Note: Preferred method of collection is venipuncture with vacuum fill. Test results are affected by incorrect blood volume. Use of a Vascular Access Device for the collection of coag testing is not recommended. If this method is used it requires a 5 cc clearing volume; 3 cc for size 2 French catheter or smaller. Blood must be trasferred to the Lt Blue/Citrate tube by use of a blood transfer device to ensure proper fill. Specimen should be centrifuged within 1 hour of collection.

Processing Instructions

Reject due to: Clotted, Hemolyzed, Insufficient quantity, and  Improper collection.

Spin: N

Aliquot: N

Temp: RT

Storage location: Core 6 Freezer ( -70 C), Send Outs rack.

 

Note: Deliver blood to Core Coag bench. Coag Technologist will process. Specimen should be centrifuged within  1 hour of collection. Spin whole blood, remove plasma. Transfer upper 3/4 layer of plasma to plastic tube and make 2 aliquots 0.6 mL, affix large label and store in -70 freezer, Send Outs rack.

 

Off-site collection: Preferred method of collection is venipuncture with vacuum fill. Test results are affected by incorrect blood volumel. Use of a Vascular Access Device for the collection of coag testing is not recommended. If this method is used it requires a 5 cc clearing volume; 3 cc for size 2 French catheter or smaller. Blood must be trasferred to the Lt Blue/Citrate tube by use of the blood transfer device.

Specimen should be centrifuged within 1 hour of collection. Double spin, transfer upper 3/4 layer of plasma to plastic tube affixed with large computer label. Freeze 2 aliquots of 0.6 mL plasma in plastic tubes at -70C.

Ship frozen on dry ice.

Stability

Specimen Type Temperature Time
Citrated platelet-poor plasma Room temp N
  Refrigerated N
  Frozen Y

 

Availability

STAT Performed TAT
Y, with approval  Drawn daily; performed  M - F 5 d

 

Performing Laboratory

Harborview Medical Center

Department

Department:  

Harborview Medical Center

Room GWH47; 523 9th Ave
Seattle, WA 98104
 

Phone Number: (206) 744-3451

 

 

Reference Range

 

None detected

Values reported in Bethesda units.
 

Methodology

Method: None specified

Analytical Volume: None specified

Limitations:

CPT Codes

85335

 

Send Out Instructions

 

Reference Test Name: Factor 9 Inhibitor Assay
Reference Test Number: F9INH2
Instructions: See protocol for stat sendouts. If not ordered stat, send out Mon - Fri with the UW/HMC courier.Ship on dry ice. Use a yellow UW/HMC General request form. Keep the bottom copy for our lab records.