Laboratory Test Guide

PAI 1 Activity (Sendout)

General Information

Lab Name

Lab Code

560

External Test Id

0098781

Description

Ordering Recommendation: Detect elevated concentrations of plasminogen activator inhibitor 1 (PAI-1). Low concentrations of PAI-1 may not be accurately quantified. Not a first-line test for diagnosing inherited thrombotic or bleeding disorders.

Synonyms

0098781, FIBSC1, PAI, PAI-1 Activity, PAIPAN, Plasminogen Activator Inhibitor Type 1 Activity

Interpretation

Method

Bioimmunoassay

Ref. Range Notes

See report.

Ordering & Collection

Specimen Type

Blood

Collection

5 mL blood in BLUE TOP (Sodium citrate) tube

Collect specimen between 8 a.m. and 12 noon. Expedite transport to the laboratory.

Handling Instructions

Outside Laboratories:

Centrifuge sample for 10 minutes and remove plasma.
Centrifuge plasma for another 10 minutes.
Transfer 1.5 mL platelet-poor plasma (1 mL minimum) to a separate plastic vial and freeze at -20°C to -80°C.
Send frozen on dry ice.

Stability: Frozen (Critical Frozen): 2 months; Refrigerated: Unacceptable; Ambient: Unacceptable.

Unacceptable Conditions: Serum, EDTA plasma, clotted or hemolyzed specimens.

Quantity

requested: 1.5 mL platelet poor plasma
minimum: 1.0 mL platelet poor plasma

Processing

UW-MT & HMC Instructions: Forward specimen to Coag bench for processing.

Coagulation bench: Within 1 hour of draw, double-centrifuge sample and transfer 1.5 mL (1 mL min.) platelet-poor plasma to a separate plastic vial. Freeze plasma at -20°C (Sendouts frozen rack).

Sendouts, Order ARUP Test: 0098781.

Stability: Frozen (Critical Frozen): 2 months; Refrigerated: Unacceptable; Ambient: Unacceptable.

Unacceptable Conditions: Serum, EDTA plasma, clotted or hemolyzed specimens.

Performance

LIS Dept Code

Performing Location(s)

Sendout	ARUP Laboratories, Inc. 800-522-2787 500 Chipeta Way Salt Lake City, UT 84108

Frequency

Performed: Tuesday, Wednesday, Thursday. Reported: 1-8 days from sample receipt at ARUP Laboratories.