Fragile X Screen with Reflex

Test Code: TD_5225
CPT Code(s): 81243 If Reflex, Add 81244.

$559

Test Details

Alternative Name(s)

N/A

Test Includes

Fragile X Screen with Reflex

Methodology

Polymerase Chain Reaction (PCR)/size analysis by capillary electrophoresis methylation-specific PCR to confirm fmr1 expansions on cgg repeat lengths of 55 or greater.

Rejection Criteria

Heparinized samples

Reference Range(s)

By Report

Specimen Requirements

Preferred Specimen

EDTA (lavender top) tube

Minimum Volume

5 mL whole blood

Sample Stability

7 days room temperature
1 month refrigerated
1 month frozen

Transport Temperature

Refrigerated

Collection Instructions

Fill EDTA tube and gently mix by inverting the tube 8-10 times. Refrigerate.
Note: Prior authorization is required by certain insurance products and state Medicaid programs. Please contact providers and follow instructions for authorization prior to ordering this test. If authorized, please provide documentation when submitting the order.

Alternative Specimen

N/A