Testing Specialties

Nationwide Children's Hospital Laboratory Services are organized into four broad sections that work together to provide comprehensive diagnostic services in anatomic pathology, clinical pathology, diagnostic immunology, and genomics.

Anatomic Pathology Laboratory processes approximately 12,500 surgical cases, 100-150 autopsies and 350 bone marrow biopsies annually. Complete with full-service state-of-the-art laboratories, our staff has extensive experience with evaluation and diagnosis of pediatric surgical specimens, as well as perinatal and post-mortem examinations. 

Clinical Pathology Laboratory performs more than 3.1 million tests per year in various areas including:

  • General Chemistry (plasma/serum, body fluid, urine, whole blood and blood gas testing)
  • Specialty Chemistry (metabolic, endocrine, therapeutic drug monitoring, toxicology and immunology testing)
  • Hematology and Coagulation/Special Hematology (including flow cytometry)
  • Microbiology, Virology, Molecular Microbiology, Infectious Disease Serology  
  • Transfusion Medicine
  • Point-of-care testing

Diagnostic Immunology Laboratory is comprised of a team of highly skilled academic clinical scientists and laboratory personnel who provide comprehensive and esoteric testing for the diagnosis and monitoring of complex immunological disorders. The laboratory focuses on the validation and implementation of new diagnostic immunology testing through robust research and development.

The Steve and Cindy Rasmussen Institute for Genomic Medicine Clinical Laboratory process more than 7,000 cytogenetic and molecular genetics specimens annually, including whole exome sequencing.

Each division of the clinical labs is staffed by laboratory professionals (medical laboratory technicians, medical technologists and specialists with advanced degrees in laboratory sciences) and directed by a doctoral level scientist or pathologist. Laboratory managers and directors, as well as a clinical pathologist-on-call, are available for consultations regarding test selection and interpretation of results.



Pediatric Pathology Associates of Columbus (PPAC), Inc. is a wholly owned subsidiary corporation of Nationwide Children's Hospital providing the professional medical and scientific staff to the lab for anatomic pathology, cytogenetic, molecular and clinical pathology services. 

The corporation consists of the medical pathologists and doctoral laboratory scientists providing sole and dedicated clinical lab service, education, and research support to Nationwide Children's Hospital medical and support staff on all aspects of laboratory diagnostics for inpatients and outpatients. PPAC incorporated on July 1, 1998. You are encouraged to contact the members for all questions regarding laboratory diagnostic testing and interpretation.

Anatomic Pathology

Anatomic Pathology Laboratory staff has extensive experience with evaluation and diagnosis of pediatric surgical specimens, as well as perinatal and post-mortem examinations.


Clinical Pathology

The Core Laboratory provides rapid response services available 24 hours a day for routine chemistry, urine and fluid analysis, hematology, coagulation, and blood gases.

Diagnostic Immunology Laboratory

The Diagnostic Immunology Laboratory at Nationwide Children's Hospital supports excellence in clinical care by offering state-of-the-art testing to diagnose, monitor and characterize immunologic disorders.