Pediatric Gastroenterology and Nutrition Laboratory (PGNL)

The Pediatric Gastroenterology and Nutrition Laboratory (PGNL) provides a panel of specialized functional tests for the diagnosis and treatment of gastrointestinal disorders.

The PGNL plays an integral role with the Division of Gastroenterology by delivering additional diagnostic services in the following areas: CARE (Constipation and Reflux Evaluation) Program, Celiac Disease, Eosinophilic GI Disorders, Gastrointestinal Motility, Inflammatory Bowel Disease Program, Obesity, Pancreatic disorders, Tube Feeding Clinic, Liver Disease/Transplantation and Feeding/Swallowing Disorders.

The PGNL is a CLIA certified reference lab for the testing of intestinal disaccharidases (lactase, sucrase, glucoamylase and palatinase), pancreatic enzymes (lipase, trypsin and amylase) and stool alpha-1 antitrypsin.

Pediatric Gastroenterology and Nutrition Laboratory Requisition Form (PDF)

Key Contacts

Medical Director
Nita Salzman, MD, PhD

Laboratory Manager
Mark Struve (PDF)

Laboratory Phone
(414) 955-4166

Contact Information & Specimen Delivery Address

Medical College of Wisconsin
Pediatric Gastroenterology and Nutrition Laboratory
Attn: Mark Struve
Department of Pediatrics – Gastroenterology
MACC Fund Research Center, Rm. 5029
8701 Watertown Plank Road
Milwaukee, WI 53226

(414) 955-4166 | Fax: (414) 955-6686

Hours of Operation

The laboratory is regularly staffed Monday through Friday, 7 a.m. to 3:30 p.m. (Central Standard Time).

The laboratory is closed the following dates: January 1, May 29, July 4, September 4, November 23 & 24, December 25 & 26.

Specimen Delivery Route

Shipments are to be delivered to the Medical College of Wisconsin Loading Dock. The loading dock is located off of Watertown Plank Road between 87th and 92nd streets by use of access road highlighted by red arrow (see map below).

Directions to MCW and Milwaukee Regional Medical Center