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

CD4/CD8 Ratio

Primary unit
Ratio
LOINC codes
54218-3
Tests that measure CD4/CD8 Ratio
Labcorp 8, Quest Diagnostics 4

Tests

Check the catalog code, specimen, method and preparation for every test that measures CD4/CD8 Ratio. Select up to five tests to compare them side by side.

Labcorp 8 tests

Panels that include this biomarker

  • CD4:CD8 Ratio Profile 505271

    21 analytes · Blood · Fasting not stated · Turnaround 1 - 3 days

    Method and collection
    Method
    Flow cytometry
    Collection
    Immediately invert the tube eight to 10 times after collection. To maintain cellular viability, collect the specimen in either a yellow-top tube (ACD-A or ACD-B) for arrival at the laboratory within 48 hours of collection, or a lavender-top (EDTA) tube for arrival at the laboratory within 24 hours of collection. Record the date and time of venipuncture on both the tube(s) and the test requisition form.
    Reference notes
    Reference intervals for adults have been established by the laboratory. See table. Reference Intervals for Lymphocyte Immunophenotyping CD | Age | 95% Confidence Interval Percentage | Cells/mm3 Minimum | Maximum | Minimum | Maximum Pediatric reference intervals are from Comans-Bitter WM, de Groot R, van den Beemd R, et al. Immunophenotyping of blood lymphocytes in childhood. Reference values for lymphocyte subpopulations. J Pediatrics. 1997 Mar; 130(3):388-393. CD4+ | Neonates | 17 | 52 | 400 | 3500 1 wk to 2 m | 41 | 68 | 1700 | 5300 2 to 5 m | 33 | 58 | 1500 | 5000 5 to 9 m | 33 | 58 | 1400 | 5100 9 to 15 m | 31 | 54 | 1000 | 4600 15 to 24 m | 25 | 50 | 900 | 5500 2 to 5 y | 23 | 48 | 500 | 2400 5 to 10 y | 27 | 53 | 300 | 2000 10 to 16 y | 25 | 48 | 400 | 2100 Adults | 31 | 59 | 359 | 1519 CD8+ | Neonates | 10 | 41 | 200 | 1900 1 wk to 2 m | 9 | 23 | 400 | 1700 2 to 5 m | 11 | 25 | 500 | 1600 5 to 9 m | 13 | 26 | 600 | 2200 9 to 15 m | 12 | 28 | 400 | 2100 15 to 24 m | 11 | 32 | 400 | 2300 2 to 5 y | 14 | 33 | 300 | 1600 5 to 10 y | 19 | 34 | 300 | 1800 10 to 16 y | 9 | 35 | 200 | 1200 Adults | 12 | 36 | 109 | 897 T4:T8 ratio | Adults | 0.92 | 3.72
    Labcorp catalog page

  • T-Lymphocyte Helper/Suppressor Profile 096925

    22 analytes · Blood · Fasting not stated · Turnaround 1 - 3 days

    Method and collection
    Method
    Flow cytometry
    Collection
    Immediately invert the tube eight to 10 times after collection. To maintain cellular viability, collect the specimen in either a yellow-top tube (ACD-A or ACD-B) for arrival at the laboratory within 48 hours of collection, or a lavender-top (EDTA) tube for arrival at the laboratory within 24 hours of collection. Record the date and time of venipuncture on both the tube(s) and the test requisition form.
    Reference notes
    Reference intervals for adults have been established by the laboratory. See table. Reference Intervals for Lymphocyte Immunophenotyping CD | Age | 95% Confidence Interval Percentage | Cells/mm³ Minimum | Maximum | Minimum | Maximum Pediatric reference intervals are from Comans-Bitter WM, de Groot R, van den Beemd R, et al. Immunophenotyping of blood lymphocytes in childhood. Reference values for lymphocyte subpopulations. J Pediatrics. 1997 Mar; 130(3):388-393. CD3+ | Neonates | 28 | 76 | 600 | 5000 1 wk to 2 m | 60 | 85 | 2300 | 7000 2 to 5 m | 48 | 75 | 2300 | 6500 5 to 9 m | 50 | 77 | 2400 | 6900 9 to 15 m | 54 | 76 | 1600 | 6700 15 to 24 m | 39 | 73 | 1400 | 8000 2 to 5 y | 43 | 76 | 900 | 4500 5 to 10 y | 55 | 78 | 700 | 4200 10 to 16 y | 52 | 78 | 800 | 3500 Adults | 58 | 86 | 622 | 2402 CD3+CD4+ | Neonates | 17 | 52 | 400 | 3500 1 wk to 2 m | 41 | 68 | 1700 | 5300 2 to 5 m | 33 | 58 | 1500 | 5000 5 to 9 m | 33 | 58 | 1400 | 5100 9 to 15 m | 31 | 54 | 1000 | 4600 15 to 24 m | 25 | 50 | 900 | 5500 2 to 5 y | 23 | 48 | 500 | 2400 5 to 10 y | 27 | 53 | 300 | 2000 10 to 16 y | 25 | 48 | 400 | 2100 Adults | 31 | 59 | 359 | 1519 CD3+CD8+ | Neonates | 10 | 41 | 200 | 1900 1 wk to 2 m | 9 | 23 | 400 | 1700 2 to 5 m | 11 | 25 | 500 | 1600 5 to 9 m | 13 | 26 | 600 | 2200 9 to 15 m | 12 | 28 | 400 | 2100 15 to 24 m | 11 | 32 | 400 | 2300 2 to 5 y | 14 | 33 | 300 | 1600 5 to 10 y | 19 | 34 | 300 | 1800 10 to 16 y | 9 | 35 | 200 | 1200 Adults | 12 | 36 | 109 | 897 T4:T8 ratio | Adults | 0.92 | 3.72
    Labcorp catalog page

  • Helper/Suppressor and Natural Killer Cell Profile 259317

    24 analytes · Blood · Fasting not stated · Turnaround 1 - 3 days

    Method and collection
    Method
    Flow cytometry
    Collection
    Immediately invert the tube eight to 10 times after collection. To maintain cellular viability, collect the specimen in either a yellow-top tube (ACD-A or ACD-B) for arrival at the laboratory within 48 hours of collection, or a lavender-top (EDTA) tube for arrival at the laboratory within 24 hours of collection. Record the date and time of venipuncture on both the tube(s) and the test requisition form.
    Reference notes
    Reference intervals for adults have been established by the laboratory. See table. Reference Intervals for Lymphocyte Immunophenotyping CD | Age | 95% Confidence Interval Percentage | Cells/mm3 Minimum | Maximum | Minimum | Maximum Pediatric reference intervals are from Comans-Bitter WM, de Groot R, van den Beemd R, et al. Immunophenotyping of blood lymphocytes in childhood. Reference values for lymphocyte subpopulations. J Pediatrics. 1997 Mar; 130(3):388-393. CD3+ | Neonates | 28 | 76 | 600 | 5000 1 wk to 2 m | 60 | 85 | 2300 | 7000 2 to 5 m | 48 | 75 | 2300 | 6500 5 to 9 m | 50 | 77 | 2400 | 6900 9 to 15 m | 54 | 76 | 1600 | 6700 15 to 24 m | 39 | 73 | 1400 | 8000 2 to 5 y | 43 | 76 | 900 | 4500 5 to 10 y | 55 | 78 | 700 | 4200 10 to 16 y | 52 | 78 | 800 | 3500 Adults | 58 | 86 | 622 | 2402 CD3+CD4+ | Neonates | 17 | 52 | 400 | 3500 1 wk to 2 m | 41 | 68 | 1700 | 5300 2 to 5 m | 33 | 58 | 1500 | 5000 5 to 9 m | 33 | 58 | 1400 | 5100 9 to 15 m | 31 | 54 | 1000 | 4600 15 to 24 m | 25 | 50 | 900 | 5500 2 to 5 y | 23 | 48 | 500 | 2400 5 to 10 y | 27 | 53 | 300 | 2000 10 to 16 y | 25 | 48 | 400 | 2100 Adults | 31 | 59 | 359 | 1519 CD3+CD8+ | Neonates | 10 | 41 | 200 | 1900 1 wk to 2 m | 9 | 23 | 400 | 1700 2 to 5 m | 11 | 25 | 500 | 1600 5 to 9 m | 13 | 26 | 600 | 2200 9 to 15 m | 12 | 28 | 400 | 2100 15 to 24 m | 11 | 32 | 400 | 2300 2 to 5 y | 14 | 33 | 300 | 1600 5 to 10 y | 19 | 34 | 300 | 1800 10 to 16 y | 9 | 35 | 200 | 1200 Adults | 12 | 36 | 109 | 897 T4:T8 ratio | Adults | 0.92 | 3.72 CD3-CD56+ | Neonates | 6 | 58 | 100 | 1900 1 wk to 2 m | 3 | 23 | 200 | 1400 2 to 5 m | 2 | 14 | 100 | 1300 5 to 9 m | 2 | 13 | 100 | 1000 9 to 15 m | 3 | 17 | 200 | 1200 15 to 24 m | 3 | 16 | 100 | 1400 2 to 5 y | 4 | 23 | 100 | 1000 5 to 10 y | 4 | 26 | 90 | 900 10 to 16 y | 6 | 27 | 70 | 1200 Adults | 1 | 19 | 24 | 406
    Labcorp catalog page

  • Immune Deficiency Profile VIII 150201

    24 analytes · Serum · Fasting not stated · Turnaround 4 - 7 days

    Method and collection
    Method
    See individual tests.
    Collection
    Due to loss of cellular viability, draw specimen so it will arrive in the laboratory Monday through Thursday and within 48 hours of collection. Specimens cannot be held over the weekend. State date and time of collection on the request form. To avoid delays in turnaround time when requesting multiple tests on frozen samples, please submit separate frozen specimens for each test requested.
    Reference notes
    See individual tests.
    Labcorp catalog page

  • T- and B-Lymphocyte Differential Profile 096917

    24 analytes · Blood · Fasting not stated · Turnaround 1 - 3 days

    Method and collection
    Method
    Flow cytometry
    Collection
    Immediately invert the tube eight to 10 times after collection. To maintain cellular viability, collect the specimen in either a yellow-top tube (ACD-A or ACD-B) for arrival at the laboratory within 48 hours of collection, or a lavender-top (EDTA) tube for arrival at the laboratory within 24 hours of collection. Record the date and time of venipuncture on both the tube(s) and the test requisition form.
    Reference notes
    Reference intervals for adults have been established by the laboratory. See table. Reference Intervals for Lymphocyte Immunophenotyping CD | Age | 95% Confidence Interval Percentage | Cells/mm³ Minimum | Maximum | Minimum | Maximum Pediatric reference intervals are from Comans-Bitter WM, de Groot R, van den Beemd R, et al. Immunophenotyping of blood lymphocytes in childhood. Reference values for lymphocyte subpopulations. J Pediatrics. 1997 Mar; 130(3):388-393. CD3+ | Neonates | 28 | 76 | 600 | 5000 1 wk to 2 m | 60 | 85 | 2300 | 7000 2 to 5 m | 48 | 75 | 2300 | 6500 5 to 9 m | 50 | 77 | 2400 | 6900 9 to 15 m | 54 | 76 | 1600 | 6700 15 to 24 m | 39 | 73 | 1400 | 8000 2 to 5 y | 43 | 76 | 900 | 4500 5 to 10 y | 55 | 78 | 700 | 4200 10 to 16 y | 52 | 78 | 800 | 3500 Adults | 58 | 86 | 622 | 2402 CD3+CD4+ | Neonates | 17 | 52 | 400 | 3500 1 wk to 2 m | 41 | 68 | 1700 | 5300 2 to 5 m | 33 | 58 | 1500 | 5000 5 to 9 m | 33 | 58 | 1400 | 5100 9 to 15 m | 31 | 54 | 1000 | 4600 15 to 24 m | 25 | 50 | 900 | 5500 2 to 5 y | 23 | 48 | 500 | 2400 5 to 10 y | 27 | 53 | 300 | 2000 10 to 16 y | 25 | 48 | 400 | 2100 Adults | 31 | 59 | 359 | 1519 CD3+CD8+ | Neonates | 10 | 41 | 200 | 1900 1 wk to 2 m | 9 | 23 | 400 | 1700 2 to 5 m | 11 | 25 | 500 | 1600 5 to 9 m | 13 | 26 | 600 | 2200 9 to 15 m | 12 | 28 | 400 | 2100 15 to 24 m | 11 | 32 | 400 | 2300 2 to 5 y | 14 | 33 | 300 | 1600 5 to 10 y | 19 | 34 | 300 | 1800 10 to 16 y | 9 | 35 | 200 | 1200 Adults | 12 | 36 | 109 | 897 T4:T8 ratio | Adults | 0.92 | 3.72 CD19+ | Neonates | 5 | 22 | 40 | 1100 1 wk to 2 m | 4 | 26 | 600 | 1900 2 to 5 m | 14 | 39 | 600 | 3000 5 to 9 m | 13 | 35 | 700 | 2500 9 to 15 m | 15 | 39 | 600 | 2700 15 to 24 m | 17 | 41 | 600 | 3100 2 to 5 y | 14 | 44 | 200 | 2100 5 to 10 y | 10 | 31 | 200 | 1600 10 to 16 y | 8 | 24 | 200 | 600 Adults | 3 | 25 | 12 | 640
    Labcorp catalog page

Quest Diagnostics 4 tests

Panels that include this biomarker

  • Lymphocyte Subset Panel 4 7924

    6 analytes · Blood · Fasting not stated · Turnaround Set up: Daily

    Method and collection
    Method
    Flow Cytometry (FC)
    Collection
    If a CBC is also required, a separate EDTA (lavender-top) tube must be submitted.
    Reference notes
    See Laboratory Report
    Quest Diagnostics catalog page

  • Lymphocyte Subset Panel 3 7195

    8 analytes · Blood · Fasting not stated · Turnaround Set up: Daily

    Method and collection
    Method
    Flow Cytometry (FC)
    Collection
    If a CBC is also required, a separate EDTA (lavender-top) tube must be submitted.
    Reference notes
    See Laboratory Report
    Quest Diagnostics catalog page

  • Lymphocyte Subset Panel 2 36420

    10 analytes · Blood · Fasting not stated · Turnaround Set up: Daily

    Method and collection
    Method
    Flow Cytometry (FC)
    Collection
    If a CBC is also required, a separate EDTA (lavender-top) tube must be submitted.
    Reference notes
    See Laboratory Report
    Quest Diagnostics catalog page

  • Lymphocyte Subset Panel 1 7197

    12 analytes · Blood · Fasting not stated · Turnaround Set up: Daily

    Method and collection
    Method
    Flow Cytometry (FC)
    Collection
    If a CBC is also required, a separate EDTA (lavender-top) tube must be submitted
    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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