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Common biomarkers

  • Hemoglobin
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  • ALT
  • Apolipoprotein B
  • C-Reactive Protein, Cardiac
  • Ferritin
  • Alb/Creat Ratio, Urine
  • Alkaline Phosphatase
  • FSH
  • T4,Free(Direct)

Biomarkers · Chemical

Partial Thromboplastin Time

Also listed as
aspartate aminotransferase, sgot, aspartate transaminase
LOINC codes
14979-9, 27816-8, 3209-4, 3226-8, 5902-2, 6014-5, 6301-6, 32217-2, 50377-1, 50378-9, 8251-1, 15160-5
Tests that measure Partial Thromboplastin Time
Quest Diagnostics 4

Tests

Check the catalog code, specimen, method and preparation for every test that measures Partial Thromboplastin Time. Select up to five tests to compare them side by side.

Quest Diagnostics 4 tests

Panels that include this biomarker

  • von Willebrand Screen 90271

    6 analytes · Plasma · Fasting not stated

    Method and collection
    Method
    See individual tests
    Collection
    Platelet-poor plasma: Centrifuge light blue-top tube for 15 minutes at approximately 1500 g within 60 minutes of collection. Using a plastic pipette, remove plasma, taking care to avoid the WBC/platelet buffy layer and place into a plastic vial. Centrifuge a second time and transfer platelet-poor plasma into a new plastic vial. Plasma must be free of platelets (<10,000/mcl). Freeze immediately and ship on dry ice. Note: Storage of whole blood at refrigerated temperatures prior to processing may lead to cryoprecipitate formation and falsely low Factor VIII and von Willebrand Factor studies.
    Reference notes
    See individual tests
    Quest Diagnostics catalog page

  • von Willebrand Disease Panel without Collagen Binding Assay (CBA) 19790

    7 analytes · Plasma · Fasting not stated

    Method and collection
    Method
    See individual tests
    Collection
    Please submit a separate, frozen vial for each special coagulation assay ordered. Draw blood in a light blue-top tube containing 3.2% sodium citrate, mix gently by inverting 3-4 times. Centrifuge 15 minutes at 1500 g within one hour of collection. Using a plastic pipette, remove plasma, taking care to avoid the WBC/platelet buffy layer and place into a plastic vial. Centrifuge a second time and transfer platelet-poor plasma into a new plastic vial(s). Freeze immediately and transport on dry ice. Note: Storage of whole blood at refrigerated temperatures prior to processing may lead to cryoprecipitate formation and falsely low Factor ViII and von Willebrand Factor studies.
    Reference notes
    See individual tests
    Quest Diagnostics catalog page

  • Menorrhagia Screen without Consultation 19649

    8 analytes · Plasma · Fasting not stated · Turnaround Set up: Varies with assay

    Method and collection
    Method
    Clotting Assay • Immunoturbidimetric • Platelet Agglutination • Photo/Optical • Photometric Clot Detection
    Collection
    Collect blood in 3 sodium citrate (light blue-top) tubes. Tubes must be filled to capacity to insure correct blood to anticoagulant ratio. Centrifuge whole blood at 1500 g for 15 minutes. Avoiding the buffy coat, transfer plasma using a plastic pipette into a new plastic tube and repeat centrifugation. Aliquot plasma using a plastic pipette into 3 new plastic vials and freeze. Specimens must remain frozen during storage and shipment. All requests for coagulation assays should include a brief patient history and other pertinent clinical information.
    Reference notes
    See Laboratory Report
    Quest Diagnostics catalog page

  • von Willebrand Disease Panel with Collagen Binding Assay (CBA) 15540

    9 analytes · Plasma · Fasting not stated

    Method and collection
    Method
    See individual tests
    Collection
    Please submit a separate, frozen vial for each special coagulation assay ordered. Draw blood in a light blue-top tube containing 3.2% sodium citrate, mix gently by inverting 3-4 times. Centrifuge 15 minutes at 1500 g within one hour of collection. Using a plastic pipette, remove plasma, taking care to avoid the WBC/platelet buffy layer and place into a plastic vial. Centrifuge a second time and transfer platelet-poor plasma into a new plastic vial(s). Freeze immediately and transport on dry ice. Note: Storage of whole blood at refrigerated temperatures prior to processing may lead to cryoprecipitate formation and falsely low Factor ViII and von Willebrand Factor studies.
    Reference notes
    See Laboratory Report
    Quest Diagnostics catalog page

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We compile this page from named laboratory catalogs, guidelines and studies. Labs calculate reference intervals from the people they test, for one assay method and one population group, so an interval describes that population rather than an optimal target.

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