Biomarker Lens

Common biomarkers

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

Biomarkers · Chemical

Cognitive Assessment Summary

LOINC codes
10834-0, 13046-8, 13964-2, 13965-9, 1742-6, 1751-7, 1759-0, 17861-6, 19048-8, 19123-9, 1920-8, 1975-2, 2028-9, 2075-0, 2132-9, 2160-0, 2284-8, 2345-7, 26507-4, 26523-1, 2777-1, 2823-3, 2885-2, 2951-2, 3016-3, 30376-8, 30392-5, 30433-7, 30446-9, 30522-7, 3094-0, 3097-3, 4544-3, 5905-5, 6690-2, 6768-6, 704-7, 706-2, 709-6, 711-2, 713-8, 718-7, 731-0, 736-9, 740-1, 742-7, 749-2, 751-8, 764-1, 770-8, 776-5, 777-3, 783-1, 785-6, 786-4, 787-2, 788-0, 789-8, 8251-1, 98979-8
Tests that measure Cognitive Assessment Summary
Quest Diagnostics 1

Tests

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

Quest Diagnostics 1 test

Panels that include this biomarker

  • Cognitive Assessment Panel with Reflex to T4 Free 18634

    8 analytes · Serum · Fasting not stated

    Method and collection
    Method
    Spectrophotometry (SP) • Immunoturbidimetric • Enzymatic • Mass Spectrometry (MS) • Electronic Cell Sizing/Counting/Cytometry/Microscopy • Immunoassay (IA)
    Preparation
    Fasting is preferred Additional Considerations for Patient Preparation: Comprehensive Metabolic Panel: Administration of STRENSIQ may interfere in certain assays and may falsely elevate values. For patients receiving STRENSIQ, consideration should be given to using alternate methods. TSH: Specimen collection after fluorescein dye angiography should be delayed for at least 3 days. For patients on hemodialysis, specimen collection should be delayed for 2 weeks after angiography. According to the assay manufacturer Siemens: samples containing fluorescein can produce falsely depressed values. Folate: Dietary supplements containing biotin may interfere in assays and may skew analyte results to be either falsely high or falsely low. For patients receiving the recommended daily doses of biotin, draw samples at least 8 hours following the last biotin supplementation. For patients on mega-doses of biotin supplements, draw samples at least 72 hours following the last biotin supplementation.
    Collection
    Serum for Homocysteine: Red-top tubes: Place the specimen in a refrigerator or ice bath for 30 minutes after collection. Centrifuge the specimen as soon as possible after complete clot formation has taken place. Transfer the serum to a plastic screw-capped vial. Barrier gel separator tubes: Place the specimen in a refrigerator for 30 minutes after collection. Centrifuge the specimen as soon as possible after complete clot formation has taken place. Do not place barrier tubes in an ice bath as freezing may prevent the barrier gel from adequately separating serum from cells. Serum for other tests, 3 SSTs: Collect using standard venipuncture techniques. Separate from clot as soon as possible after visible clot formation, usually 30 minutes after collection. Whole blood, 1 EDTA: Maintain specimen at room temperature. Do not refrigerate. If multiple draw, collect lavender-top tube last. Traumatic venipuncture tap can introduce thromboplastin and trap white blood cells and platelets. Refrigeration can precipitate fibrin and trap white blood cells and platelets.
    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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