Fragile X syndrome, PCR with reflex to Southern Blot

Alphabetical Test listing

Fragile X syndrome, PCR with reflex to Southern Blot-13567

Fragile X syndrome, PCR with reflex to Southern Blot

Carrier screening for individuals who are pregnant or considering pregnancy and who have no family or personal history of fragile X syndrome, fragile X-related disorders (primary ovarian insufficiency, or late-onset ataxia) or unexplained intellectual disabilities, developmental delay, or autism.

EDTA whole blood
10 mL

Lavender (EDTA), 10mL

ACD whole blood

Yellow ACD (A or B)


Yellow ACD (A or B)


 Molecular Medicare billing request

  • Complete and submit the form to notify us of the need for Allina Health Laboratory to bill insurance for Molecular testing performed
  • All information requested is required in order for your request to be completed


  • Frozen specimen
  • Hemolysis
  • Quantity not sufficient for analysis (QNS)
  • Improper container
  • Unlabeled or mislabeled specimen
  • PCR testing cannot be added on to a sample that has been opened and/or used for other testing. If the sample has already been used for testing, a new specimen will need to be collected.
LabCorp RTP (511919): R-LC
PCR - Daily
Southern blot - 1x per week
6 - 14 days

Polymerase chain reaction (PCR) followed by capillary electrophoresis with reflex to Southern blot (SB) analysis for all positive samples.


An interpretive report will be provided

This test may require preauthorization from the insurance provider. Check the payer guidelines and, if needed, obtain the pre-authorization prior to sample collection.
Result 77202-0