301-519-2100 • FAX 301-519-2892 • 207 PERRY PARKWAY GAITHERSBURG, MD 20877  
 
  
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Buccal Brush Collection and Shipping Instructions

Tests For Which Buccal Brushes Cannot Be Used

Androgen Insensitivity SyndromeAR
Axenfeld-Rieger SyndromeFOXC1, PITX2
Congenital and Cyclic Neutropenia*ELA2*
Cowden s.,BRR syndrome, PTEN Hamartoma tumor s.PTEN
Dopa-Responsive DystoniaGCH1
Duane-Radial-Ray syndromeSALL4
Gorlin SyndromePTCH
Hereditary AngioedemaC1INH
HoloprosencephalySHH, SIX3, TGIF, ZIC2
Hypohidrotic Ectodermal Dysplasia, X-LinkedEDA1
Peutz-Jeghers syndromeSTK11
Multiple Endocrine NeoplasiaMEN1
Nemaline MyopathyACTA1
Pseudoachondroplasia / Multiple Epiphyseal DysplasiaCOMP
Rubinstein-Taybi SyndromeCREBBP
Townes-Brocks syndromeSALL1

CopyDx SINGLE GENE qPCR TESTS (all)

GenomeDx OLIGO ARRAY CGH TEST


Please note that the minimum age for which we can accept buccal brush specimens in infants is 6 months. 1-2 mL of whole blood in EDTA (purple top tube) is required for babies under 6 months of age.

*For ELA2 testing in Congenital and Cyclic Neutropenia, blood samples are preferred not required. After BMT or transfusion buccal brushes are clearly indicated.



Kit: Use only GeneDx buccal brush kits. Click here to order kits.
Volume: Two brushes with transport solution are included in each kit. Several tests usually can be performed on one pair of buccal brushes.
Labeling: Use the provided labels to put the patient name on both transport tubes.
Stability: Stable at ambient temperature for 14 days after collection. Buccal specimens older than 14 days can still be shipped; they will be tested if the yield and quality of DNA permit.
Shipping: Using the mailer provided, return buccal brush specimens to GeneDx by postal service at ambient temperature.

Shipping costs are generally the responsibility of the sender. GeneDx does not accept responsibility for shipping costs associated with samples sent to us.

Ship to:
GeneDx
207 Perry Parkway
Gaithersburg MD 20877


The GeneDx telephone number is 301-519-2100


  Click here to see the instructions that come with the buccal kits

Click here for required forms



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