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Geisinger Medical Laboratories Test Catalog
T-CELL SUBSETS, BRONCHOALVEOLAR LAVAGE |
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Geisinger Epic Procedure Code: LAB3121
Geisinger Epic ID: 37266
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SPECIMEN COLLECTION |
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Specimen type: |
Bronchoalveolar lavage (BAL) | |
Preferred collection container: |
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Specimen required: |
1-3 mL of bronchoalveolar lavage (BAL) fluid | |
| SPECIMEN PROCESSING |
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Transport temperature: |
Refrigerated. Protect from extremes in temperature. | |
Specimen stability: |
Refrigerated: 72 hours. | |
Rejection criteria: |
Stability limits exceeded, poor viability, insufficient cells. | |
TEST DETAILS |
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Reference interval: |
Reference ranges have been published by Yamada, M. etal., Sand, J. Immunol. 24:559-565, 1986. CD3 (BAL): 51.6-74.4 CD4 (BAL): 32.5 - 58.3 CD8 (BAL): 19.8 - 30.8 CD4/CD8 Ratio (BAL): 1.24 - 2.48 |
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Additional information: |
None. | |
CPT code(s): |
88184, 88185 x2 | |
| Note: The billing party has sole responsibility for CPT coding. Any questions regarding coding should be directed to the payer being billed. The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only. | ||
Test includes: |
% Positive CD3, CD4, CD8 and CD4:CD8 ratio in BAL fluids. | |
Methodology: |
Flow Cytometry |
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Synonyms: |
Bronchoalveolar Lavage Fluid Panel BAL48R
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Clinical significance: |
Significantly increased CD4 to CD8 ratio and BAL lymphocytosis have adjunctive value in the diagnosis of sarcoidosis and when used with other clinical findings can aid in differentiating sarcoidosis from other institial lung diseases. | |
Doctoral Director(s:) |
Kai Zhang M.D. | |
| Review Date: | 12/14/2022 | |