Presumptive Rh [Type] in Saliva (oral fluid) by Molecular genetics method 85505-6
LOINC Code
| LOINC code | 85505-6 | ||
|---|---|---|---|
| name | Presumptive Rh [Type] in Saliva (oral fluid) by Molecular genetics method | ||
| description | The presumptive (predicted) Rh factor for the D antigen (Rh positive or Rh negative) based on genetic analysis of the RHD gene. Hematopoietic stem cell transplant donor registries often collect samples from potential donors using buccal swabs or saliva (both described as "saliva" in the LOINC term) as part of enrolling them in the registry. Because these samples do not contain fresh intact red blood cells (RBCs) and traditional serological RhD blood group typing cannot be done, molecular typing is performed as part of the screening process to find an appropriate hematopoietic stem cell donor. Prior to transfusion or transplantation, the presumptive Rh factor result based on molecular typing must be confirmed using traditional serologic typing. This term was created for, but not limited in use to, the submitter's lab that performs sequence analysis of select exons in the RHD gene and predicts the RhD phenotype from the resulting DNA sequence. | ||
| status | ACTIVE | ||
Fully-Specified Name | |||
| component | Rh.presumptive | ||
| property | Type = Type: The Property Type is used for assays that identify the specific analyte in cases when the baseline presence of the analyte is known. | ||
| 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 | Saliva | ||
| scale | Nom = Nominal: Nominal or categorical responses that do not have a natural ordering. (e.g., names of bacteria, reported as answers, categories of appearance that do not have a natural ordering, such as, yellow, clear, bloody. | ||
| method | Molgen = Molecular Genetics: General class of methods used to detect genetic attributes on a molecular basis including RFL, PCR and other methods. | ||
Additional Names | |||
| short name | Rh.presumptive Sal by Molgen | ||
Basic Attributes | |||
| class | BLDBK | ||
| type | 1 Laboratory | ||
| order vs. observation | Both | ||
Associated Observations | |||
LOINC codes that represent optional associated observation(s) for a clinical observation or laboratory test. A LOINC term may represent a single associated observation or panel containing several associated observations. | |||
History/Usage | |||
| first released | |||
| last updated | 2.61 | ||
| last change type | ADD - added | ||
Related Names | |||
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