The Genetic Pharmacology Service accepts pharmacogenetic test specimens Monday through Sunday. Results are available within two business days. 

Step-by-Step Ordering Instructions

  1. Download and print a GPS test requisition.
  2. Encourage your patient / patient’s parent to read the handout on pages 3 and 4 of the requisition. The decision to have a pharmacogenetic test is voluntary.
  3. Place 2 mL blood in a lavender top EDTA tube. Alternately, two cytobrushes (cheek swabs) may be submitted.  
  4. Make sure the specimen is labeled and the requisition accompanies the specimen. The specimen may be kept at room temperature or refrigerated. DO NOT FREEZE. Do NOT place on ice. 
  5. Call 513-636-4474 to notify the Genetic Pharmacology Service that the sample has been sent.

Specimen Transport Within Greater Cincinnati

Call 513-636-4474 to arrange delivery within the Cincinnati area until 6 pm Monday through Friday. On weekends, call 513-860-2555.

Shipping from Outside Greater Cincinnati

Federal Express
Available to all customers Monday through Friday. For hassle-free shipping, all customers are provided with pre-printed FedEx waybills, which include our account number.  

  • Call 513-636-4474 or toll-free 1-800-344-2462, ext. 6-4474, to request waybills.
  • Call 1-800-GO-FEDEX to arrange pick up.

Relay Express
Available after 5 pm Monday through Friday and on weekends.

  • Call 1-800-860-6288 to arrange for pick up.  
  • Indicate to the dispatcher that you have a package to be delivered to the following address:

    Cincinnati Children’s Hospital Medical Center
    Genetics Laboratory
    3333 Burnet Ave.
    Cincinnati, OH 45229-3039