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
- Receiving Instructions
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.
- Misc Sendout
Performance
- Lab Department
- Genetics - OLD(GENO)
- Frequency
- Performed weekly. Results within 2-3 weeks.
- Available STAT?
- No
- Performing Location(s)
Billing & Coding
- CPT Codes
- 83891, 83894, 83898, 83912
- Interfaced Order Code
- UOW856