75708-8
LOINC Code
| LOINC code | 75708-8 | |
|---|---|---|
| name | ||
| description | Analysis of the Bruton tyrosine kinase (Btk) protein by flow cytometry is performed as a preliminary screen for X-linked agammaglobulinemia (XLA), primarily in male patients (<65 years of age) or female carriers (child-bearing age: <45 years). Since genotype-phenotype correlations are important, BTK gene sequencing [LOINC: 35295-5] is performed when the Btk protein is absent by flow cytometry to confirm the diagnosis of XLA. | |
| status | ACTIVE | |
Fully-Specified Name | ||
| component | Bruton tyrosine kinase | |
| property | Imp = Impression/interpretation of study | |
| time | Pt = Point in time: To identify measures at a point in time. This is a synonym for “spot” or “random” as applied to urine measurements. | |
| system | B cells+monocytes | |
| scale | Nar = Narrative: Text narrative, such as the description of a microscopic part of a surgical papule test. | |
| method | Flow cytometry | |
Additional Names | ||
| short name | Bruton's Tyrosine Kinase; Btk; CELL MARKERS; Dynamic; FC; Impression; Impression/interpretation of study; Impressions; Interp; Interpretation; Narrative; Point in time; Random; Report; Tyr; Tyrosine-protein kinase BTK; XLA; X-Linked Agammaglobulinemia | |
Basic Attributes | ||
| class | CELLMARK | |
| type | 1 Laboratory | |
| order vs. observation | Btk B cells+mon | |
History/Usage | ||
| first released | ||
| last updated | 2.5 | |
| last change type | MIN - change to field other than name | |
Related Names | ||
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