MU Veterinary Medical Diagnostic Laboratory

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You are here: Home / Serum Progesterone Test Now Available at MU

Serum Progesterone Test Now Available at MU

The VMDL now offers serum progesterone testing via chemiluminescence assay. Currently the assay is performed on Tuesdays and Fridays; if demand is sufficient a more frequent testing schedule will be instituted. Cost per sample is $13. Serum is the appropriate sample. For reliable results, collect blood into clot tubes without any clot facilitator or serum separator agent. Separate the serum from the clot within 2 hours of collection. DO NOT REFRIGERATE THE SPECIMEN PRIOR TO CENTRIFUGATION. Following separation, serum should be kept cooled or frozen and shipped to arrive at the lab as soon as possible. Do not collect and ship samples to arrive on the weekend.

The most common indication for measuring serum progesterone concentrations in dogs is to identify the optimal breeding time. On the day of the LH surge, the serum concentration of progesterone rises beyond 2 ng/mL in most bitches. Concentrations higher than 5 ng/ml indicate ovulation has occurred. Bitches are most fertile when bred 4-7 days after the LH surge.

In alpacas and llamas progesterone testing is used to diagnose pregnancy. Females that do not return to estrus for three weeks after breeding are tested. Concentrations higher than 2 ng/mL indicate pregnancy with greater than 90% certainty, whereas concentrations below 2 ng/mL indicate that the female is not pregnant.

There are other less common indications for the measurement of serum progesterone concentrations. Dr. Dietrich Volkmann or Dr. Dawna Voelkl, both of the Theriogenology Section of the Veterinary Medical Teaching Hospital can be contacted to help with the interpretation of results (call 573 – 882 6857). For service and billing related questions please call the VMDL.

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Message from the Director

The University of Missouri Veterinary Medical Diagnostic Laboratory (VMDL) is a full-service veterinary diagnostic laboratory and Missouri’s only laboratory accredited by the American Association of Veterinary Laboratory Diagnosticians. The VMDL is a Level I Lab of the National Animal Health Laboratory Network, Tier I Lab of the FDA Veterinary Laboratory Response Network, and a National Poultry Improvement Plan authorized lab. The VMDL maintains an effective quality assurance and quality control program.

The VMDL has formal anatomical pathology, clinical pathology, and clinical microbiology training programs. The VMDL faculty hold academic appointments in the Departments of Veterinary Pathobiology and Veterinary Biomedical Sciences. The director is administratively responsible to the dean of the College of Veterinary Medicine for the overall operation of the laboratory and its multiple missions of public service, teaching, research and continuing education/extension.

The VMDL faculty and staff work diligently to provide relevant, timely and cost-effective diagnostic services to our clients and to create a positive learning environment for our students and residents. In 2020, the VMDL processed approximately 52,036 accessions and performed more than 142,000 diagnostic tests. The diagnostic service was utilized by veterinarians and owners in 105 counties in Missouri and 43 US states and Canadian provinces.

About the MU VMDL

The VMDL is a full-service laboratory accredited by the American Association of Veterinary Laboratory Diagnosticians (AAVLD). The VMDL provides in-depth laboratory diagnostic support to veterinary practitioners, livestock and poultry industry interests, companion animal interests, wildlife conservationists, scientists utilizing animals in their research throughout the university, state and regulatory officials, and clinicians of the MU Veterinary Health Center.

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901 E. Campus Loop
Columbia, MO 65211

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