TEST CATALOG ORDERING & RESULTS SPECIMEN HANDLING CUSTOMER SERVICE EDUCATION & INSIGHTS
Test Catalog

Test ID: ADM13    
ADAMTS13 Activity and Inhibitor Profile, Plasma

Testing Algorithm Delineates situations when tests are added to the initial order. This includes reflex and additional tests.

Testing begins with ADAMTS13 activity assay to evaluate the percent activity. If the ADAMTS13 activity assay is less than 30%, an inhibitor screen will be performed to look for specific ADAMTS13 inhibition. If specific inhibition is apparent, the titer of the inhibitor will be determined.

Specimen Type Describes the specimen type validated for testing

Plasma Na Cit

Shipping Instructions

Send both vials in the same shipping container.

Specimen Required Defines the optimal specimen required to perform the test and the preferred volume to complete testing

See Coagulation Guidelines for Specimen Handling and Processing in Special Instructions.

 

Patient Preparation: Fasting preferred

Collection Container/Tube: Light-blue top (citrate)

Submission Container/Tube: Plastic vials

Specimen Volume: 2 mL in 2 plastic vials each containing 1 mL

Collection Instructions:

1. Specimen must be drawn prior to replacement therapy.

2. Spin down, remove plasma, and spin plasma again.

3. Freeze plasma immediately (no longer than 4 hours after collection) at -20 degrees C or, ideally, < or =-40 degrees C.

Additional Information:

1. Double-centrifuged specimen is critical for accurate results as platelet contamination may cause spurious results.

2. If priority specimen, mark request form, give reason, and request a call-back.

3. Each coagulation assay requested should have its own vial.

Special Instructions Library of PDFs including pertinent information and forms related to the test

Forms

1. Coagulation Patient Information (T675) in Special Instructions

2. If not ordering electronically, complete, print, and send 1 of the following forms with the specimen:

-Coagulation Test Request (T753)

-Renal Diagnostics Test Request (T830)

Specimen Minimum Volume Defines the amount of sample necessary to provide a clinically relevant result as determined by the Testing Laboratory

2 mL

Reject Due To Identifies specimen types and conditions that may cause the specimen to be rejected

Gross hemolysis Reject
Gross lipemia Reject
Gross icterus Reject
 

Specimen Stability Information Provides a description of the temperatures required to transport a specimen to the performing laboratory, alternate acceptable temperatures are also included

Specimen TypeTemperatureTimeSpecial Container
Plasma Na CitFrozen14 days