Friedreich's Ataxia DNA
General Information
Lab Name
Friedreich Ataxia DNA Test
Lab Code
FRDAX
Epic Name
FRIEDREICH ATAXIA DNA TEST
Description
Synonyms
Ataxia-Friedreich, Recessive Ataxia
Components
| Code | Name |
|---|---|
| FRDAA1 | FRDA allele 1 |
| FRDAA2 | FRDA allele 2 |
| FRDACI | FRDA Clinical Information |
| FRDAIN | FRDA Interpretation |
| FRDMTH | FRDA Methods |
Interpretation
Method
Polymerase Chain Reaction (PCR)/Agarose Electrophoresis (AEP)
Reference Range
See individual components
Ordering & Collection
Specimen Type
Collection
BLOOD:
- Adult: 5 mL LAVENDER TOP tube
- Child: 2 mL LAVENDER TOP tube
- Also acceptable: YELLOW TOP (ACD) tube
Unacceptable: Heparin green top tubes
- (2) T23 or (1) T75 flask (minimum 1-T25 flask)*
CHORIONIC VILLI &/or TISSUE in sterile tube or culture media: at least 5 mg tissue*
* Prenatal testing requires concomitant testing for maternal cell contamination (see Online Test Guide, Lab Mnemonic [MCC] for ordering and specimen requirements)
Forms & Requisitions
Quantity
requested: Entire specimen
minimum: Blood: 1 mL. Amniocytes, cultured chorionic villus cells, chorionic villi or tissue: as above.
Processing
Blood: Refrigerate whole blood up to 1 week
Amniocytes & cultured CVS cells: hold flasks at room temperature
Chorionic villi &/or tissue: hold at room temperature
Processing: Please notify genetics about amniocytes, cultured chorionic villus cells, chorionic villi or tissue.
Outside Laboratories:
- Ship whole blood at ambient temperature for receipt within 1 week of specimen collection.
- For cultured amniocytes or chorionic villus cells and for CVS or other tissue, transport and store at room temperature within 24 hours of obtaining CV or removing cultured cells from incubator.
Performance
LIS Dept Code
Genetics - OLD (GENO)
Performing Location(s)
Frequency
Performed weekly. Results within 2-3 weeks.
Available STAT?
No
Billing & Coding
CPT codes
83891, 83894, 83898, 83912
LOINC
Interfaced Order Code
UOW856