Neonatal Chemistry

Newborn Screening Laboratory
Kansas Health & Environmental Laboratories
6810 SE Dwight Street
Topeka, KS 66620
Phone Number: (785) 296-1652
Fax Number: (785) 296-0978


Newborn Screening Follow-up Program
Phone Number: (785) 291-3363
Toll Free: (800) 332-6262

Newborn Hearing Screening Program
Phone Number: (785) 296-6135
Toll Free: (800) 332-6262

Neonatal Chemistry is a section of the Health Chemistry
Laboratory at the Kansas Health and Environmental Laboratories

  • The mission of KDHE is to protect and improve the health and environment of all Kansans.
  • The mission of KHEL is to provide timely and accurate analytical information for public health benefit in Kansas and to assure the quality of statewide laboratory services through certification and improvement programs.
  • The mission of Health Chemistry is to provide superior analytical data for all infants and children in Kansas on tests ranging from genetic diseases to toxins in the environment.

Kansas Neonatal Chemistry Screening


Mass Spectrometer

The Kansas Health and Environmental Laboratories began testing for phenylketonuria (PKU) in 1965 when screening for neonatal PKU was mandated in Kansas. Over the next thirty years the law was amended and the Neonatal Chemistry Laboratory added screening for congenital hypothyroidism (1977), galactosemia (1984), and hemoglobinopathies (1990).

July 1, 2008 the Neonatal Chemistry Laboratory of the Kansas Department of Health and Environment began the recommended expanded screening panel with the addition of screening for cystic fibrosis, biotinidase and congenital adrenal hyperplasia. Additional screening for amino acid, fatty acid, and organic acid disorders were added on October 20, 2008 completing the expansion of the neonatal chemistry screening panel and increasing the number of disorders screened from 4 to a total of 29 as recommended by the national American College of Medical Genetics.  

In Kansas, neonatal screening responsibilities are shared between the Neonatal InfantChemistry Laboratory and the Newborn Screening Follow-up Program of The Children's Developmental Services section of the Kansas Department of Health and Environment. The Neonatal Chemistry Laboratory is responsible for the processing and testing of blood spot specimens, while the Newborn Screening Follow-up Program is largely responsible for notifying parents and doctors when there is an abnormal result. For further information on the Newborn Screening Follow-up Program visit their web site at:

A general explanation of the Kansas Newborn Screen is found in our brochures. For more information about our brochures designed for expectant or new mothers, please go to Kansas Newborn Screening Brochure.

If your facility would like a packet of brochures please fax your request to the Neonatal Chemistry Screening Program at (785) 296-0978.

If you, as an expectant or new mother would like a brochure, please contact your obstetrician or general health care provider.

Please use the Fax Authorization Request Form for all re-issued reports, demographic corrections, test additions, or other laboratory report modifications. The form must be signed, dated and faxed to the Kansas Health and Environmental Laboratories (KHEL) before any final changes will be made on all preliminary or final laboratory reports.

Please use the Laboratory Report Delivery Form to change submitting health care facility preference for laboratory report delivery. The form must be signed, dated and faxed to the Kansas Health and Environmental Laboratories (KHEL) before any changes will be made to the current laboratory report delivery method.

Helpful Information

  Twin Infants