Factor 9 Inhibitor Reflex Panel

General Information

Lab Name

Factor 9 Inhibitor Reflex Panel

Lab Code

F9INHR

Epic Name

Factor 9 Inhibitor Reflex Panel

Description

Laboratory will perform Factor IX activity (F9) and reflexively add Factor 9 Inhibitor Assay (F9INH) if F9 activity is below reference range.

Outside clients should fill and submit Coagulation Patient Clinical History Form: Coagulation Patient Clinical History Form

Synonyms

F9 inhibitor, Factor IX Inhibitor, FIX inhibitor

Components

Code Name
F9 Factor IX Activity
FIRS Factor Inhibitor Reflex Status

Interpretation

Method

Stago Clot-based

Reference Range

See individual components

Ref. Range Notes

See Individual Test for Reference Ranges

Ordering & Collection

Specimen Type

Citrated Whole Blood

Collection

3 or 5 mL BLUE TOP (Citrate) tube

Forms & Requisitions

Outside clients should fill and submit Coagulation Patient Clinical History Form: Coagulation Patient Clinical History Form

Handling Instructions

Specimen must be processed by Lab within 4 hours of collection.

Quantity

requested: Entire Sample
minimum: 1.5 ml plasma

Processing

UW-MT Instructions: Take specimen to UW-MT Coag lab for processing. Coag Tech will freeze plasma sample for transport to HMC Coag.

HMC Instructions: Take Specimen to HMC Coag Lab for processing.

Outside Laboratory: Centrifuge sample for 10 minutes, remove plasma and re-spin plasma for another 10 minutes. Decant and freeze plasma (minimum 1.5 mL) at -20° C to -80°C. Send frozen on dry ice.

Performance

LIS Dept Code

Coagulation (COAG)

Performing Location(s)

HMC Coagulation
206-520-4600

325 9th Ave, Rm # GWH-47, Seattle, WA 98104-2420

Frequency

Run Monday-Friday. Reported by end of day.

Available STAT?

Yes, Monday-Friday 8am-3pm. For other times, contact Lab Medicine Resident (LMR) for approval. Please notify Special Coag Lab on Friday (HMC 206-744-2621, UWMC 206-598-6242) if sending a stat Factor IX on the weekend.

Billing & Coding

CPT codes

85250

LOINC

18720-3

Interfaced Order Code

UOW3522