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Test for carrier status of more than 200 hereditary disorders that can cause serious health effects in infancy or childhood.

Avero Carrier Test Genetics

Test Code

3502, 3300

CPT Code

81443, 81243*

Specimen Type

Whole blood or mouthwash specimens accepted

Additional 8.5 mL yellow-top ACD tube required only for optional Tay-Sachs HexA Enzyme analysis. (test code: 2201)


  1. Complete the test requisition form (provided separately).
  2. Peel off label from the test requisition and label tube with patient’s name and date of birth. Failure to provide two patient identifiers will prevent or delay testing.
  3. Follow collection protocol based on sample type in kit. The yellow-top ACD tube is required only for the optional Tay-Sachs disease Hexosaminidase A enzyme analysis. If drawing the yellow-top ACD tube, ensure that samples are shipped or picked up the same day. No Saturday draws.
  4. Put the sample in the specimen bag with the absorbent sleeve and seal the bag.
  5. Insert completed test requisition form into outer pocket of specimen bag.


5 days ambient/10 days refrigerated.
Store at room temperature 65 – 86°F (18 – 30°C).

Yellow-top ACD tube – 2 days ambient.

Turn Around Time

10 - 14 days

Receipt of a blood specimen is required to perform hemoglobin evaluation and Hexosaminidase A enzyme analysis for Tay-Sachs disease. DNA analysis for hemoglobinopathies and Tay-Sachs disease will be performed on all specimen types.

Carrier testing for fragile X is not performed in males. Reflexive Xpansion Interpreter® testing is provided for female carriers of 55 – 90 CGG repeats.

*CPT code 81243 does not apply to male patients.

Download the requisition.