Johns Hopkins DNA Diagnostic Laboratory

PLEASE NOTE: Informed consent from the patient is required prior to ordering a genetic test. The DNA Diagnostic Lab's consent is located on the second page of the requisition form. There is also a patient brochure, "Things Every Patient Should Know Before Consenting to a Genetic Test", available for download.

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Beta Globin Variants

Gene:    HBB (Beta globin)
     
Test:   Direct mutation analysis by PCR for Hb C, E, O-Arab, D-Punjab, or other KNOWN variant as specified by the referrer.
     
CPT Codes:
  83891 x 1
83898 x 1
83904 x 2
83909 x 2
83912 x 1 
Sensitivity:   Should be high
   
Cost:   $302 per individual blood sample 
(if testing for a known variant)
   
Turn Around Time:    2 to 3 weeks
Special Considerations:   We request hemoglobin electrophoresis & other relevant clinical confirmation with each sample.

This test is for molecular confirmation of a known beta globin variant. If the beta globin variant is unknown or has multiple possible subtypes, please order the beta globin complete gene sequencing test.
 

 Click here for Sample Requirements

Click Here for Requisition and Billing forms

Click here for clinical information on some hemoglobin variants.