As a reminder, all clients visiting the Purdue University Veterinary Hospital are required to wear a mask at all times when interacting with a hospital team member.

We appreciate your patience as we work diligently to provide the best care for your animal. Please understand there will be delays.

Thank you for your efforts to keep everyone protected!

Clinical Pathology Laboratory

Welcome to the Purdue University Veterinary Hospital Clinical Pathology Laboratory

We are a small, personable lab committed to providing the most accurate, precise, and high-quality results in a timely manner to Purdue University Veterinary Hospital clinicians, referring veterinarians and researchers. We recognize our teaching role in an academic institution and demonstrate only the highest standards of ethical and professional behavior to all faculty, staff and students.

We are staffed by four clinical pathologists, three clinical pathology residents, a laboratory manager, a senior medical technologist, three medical technologists/medical laboratory technicians, two submission clerks and six after hour veterinary students.

We are an AAHA accredited laboratory. All tests and evaluations are performed in accordance with established policies and procedures in order to provide quality veterinary diagnostic services. We understand the importance of accurate and timely results and strive to provide superior services and to exceed expectations. In most cases, same day consultation with veterinary clinical pathologists is available.

The Clinical Pathology Laboratory provides routine diagnostic testing with rapid turnaround time, including: hematology tests (CBC, reticulocyte count), clinical chemistry tests (on serum, plasma, urine and fluid), coagulation tests (PT, PTT, fibrinogen), urinalysis, endocrinology assays (T4, cortisol, phenobarbital, progesterone, canine TSH, endogenous ACTH), coombs testing, and fluid and cytology analysis. Abnormal CBCs and urine sediments, all cytology and fluids are interpreted by board certified clinical pathologists.

In-house instrumentation includes:

  • Siemens Advia 2120i
  • Stago Compact
  • Ortho-Clinical Vitros Fusion 5,1
  • Siemens Immulite 1000

Daily quality assurance and quality control procedures are in place to ensure accurate and reliable patient results. Routine maintenance (daily, weekly, and monthly) is performed in accordance to manufacturer’s recommendations.


Monday thru Friday: 8:00 a.m. – 5:00 p.m.

Routine submission times are 8:00 a.m. – 4:00 p.m.

Cytology submission times are 8:00 a.m. – 3:00 p.m.

Endocrinology submission times are 8:00 a.m. – 3:00 p.m.

Address and Telephone:

Purdue University Veterinary Hospital Clinical Pathology Laboratory
625 Harrison St.
Lynn G351
West Lafayette, IN 47906
(765) 494-7563 or (765) 494-3972

Maintenance Day

The lab is closed the 1st Tuesday of every month from 8:00 a.m. – 1:00 p.m. so that the laboratory personnel can perform preventative maintenance on all our instruments.

Our Team


John Christian, DVM, PhD, Laboratory Director
Craig Thompson, DVM, PhD., Diplomate ACVP
Joanne Messick, DVM, PhD., Diplomate ACVP
Andrea Santos, DVM, MSc, PhD.



Priscila Serpa, DVM, MSc, DSc
Karena Tang, DVM
Hamideh Esmaeilzadeh, DVM

Laboratory Supervisor:

Nicole Rosen, MT (ASCP)
(765) 494-9123

Senior Laboratory Technician:


Laboratory Technologists:

Amanda Bettag, MT (ASCP)
Melanie Prouse, MLS (ASCP)
Michelle Schmierer, MLT (AMT)

Central Lab Submission Site Clerk:

Nichelle Crawford
(765) 494-3972

Jennifer Hewitt
(765) 494-7563

Purdue University College of Veterinary Medicine, 625 Harrison Street, West Lafayette, IN 47907, (765) 494-7607

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