Intrinsic Pathway Coagulation Factor Profile (Esoterix)

TEST: 500705
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CPT: 85240; 85250; 85270; 85280
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Test Includes

Factor VIII activity; factor IX activity; factor XI activity; factor XII activity

Expected Turnaround Time

3 - 7 days

Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.

Related Documents

Specimen Requirements

Specimen

Plasma, frozen

Volume

Two tubes of 1 mL each

Minimum Volume

1.5 mL

Container

Blue-top (sodium citrate) tube

Collection

Plasma must be separated from cells within 45 minutes of venipuncture. Send plasma in a plastic transport tube. To avoid delays in turnaround time when requesting multiple tests on frozen samples, please submit separate frozen specimens for each test requested.

Storage Instructions

Freeze

Test Details

Methodology

Clot

LOINC® Map

Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
500705 Intrinsic Pathway Coag Factor 500666 Factor VIII Activity % 3209-4
500705 Intrinsic Pathway Coag Factor 500672 Factor IX Activity % 3187-2
500705 Intrinsic Pathway Coag Factor 500674 Factor XI Activity % 3226-8
500705 Intrinsic Pathway Coag Factor 500367 Factor XII Activity % 3232-6

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CPT Statement/Profile Statement

The LOINC® codes are copyright © 1994-2021, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. Permission is granted in perpetuity, without payment of license fees or royalties, to use, copy, or distribute the LOINC® codes for any commercial or non-commercial purpose, subject to the terms under the license agreement found at https://loinc.org/license/. Additional information regarding LOINC® codes can be found at LOINC.org, including the LOINC Manual, which can be downloaded at LOINC.org/downloads/files/LOINCManual.pdf