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Documentation Requirements

Please ship each specimen with the following required documents:

  1. A copy of our requisition form, available in print and complete or fillable PDFversions
  2. Appropriate family history and/or medical information for the test being ordered (see individual test pages for specific requirements)
  3. Payment information (see Billing for more information)

Sample Requirements

Sample-specific shipping requirements are located on the Sample Requirements page.

Shipping Address

Johns Hopkins Genomics - DNA Diagnostic Lab
1812 Ashland Ave
Sample Intake, Room 245
Baltimore, MD 21205


Before shipping targeted or prenatal samples, call the lab at (410) 955-0483.

Please note that we are not able to accept specimens on Saturday. Check our holiday schedule to see when the lab is closed.


Shipping fees are the responsibility of the sender or patient. Johns Hopkins does not cover these fees as part of our diagnostic service. Please DO NOT select "Bill Recipient" when sending a sample to the laboratory.

General Packing Guidelines

General packaging guidelines include wrapping glass tubes in absorbent padding, including at least one water-tight barrier in the packaging, and always mailing specimens in a sturdy box. Your courier service may also require a special outer envelope identifying the package as a biological substance.

Shipping Regulations

Shipment of medical diagnostic specimens is also regulated by the FAA and individual overnight courier services. Please consult your courier for their specific packaging requirements and acceptable shipping options for medical specimens.

The International Air Transport Association has updated the regulations for shipping dangerous goods (including infectious agents and diagnostic specimens). Please visit the IATA web site for the latest information or view a summary of the 2006 regulations.

As of January 1, 2007, samples must be labeled: "Biological Substance, Category B". The terms "Clinical Specimen" and "Diagnostic Specimen" should no longer be used. See sample label that can be printed and affixed to your packages.