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At St. Marks Veterinary Hospital, we provide a variety of state-of-the-art diagnostic services for the benefit of our clients and patients. These tools help us to view internal organs with accuracy and efficiency so we can diagnose any health conditions your pet may have.

Digital Radiology

We employ the use of digital radiology, including dental radiology, at our practice. Radiology, or x-rays, allows us to see inside the body of your pet, identifying problems with parts of the body such as the lungs, heart, bones, oral cavity, and abdominal cavity. We can use this tool to identify fractures, growths, obstructions, foreign bodies, and more.

While the veterinary world is always discussing how important digital radiology is as a replacement for traditional radiology, at St. Marks Veterinary Hospital, we know that all of these devices are not created equal. We are pleased to use the best digital x-ray systems available. We can pull up our x-ray images on a computer screen quickly after taking the image, enabling us to diagnose the problem and discuss it with you right away.

We also work closely with a board certified radiologist who can consult about our findings as needed. Our team likewise can provide images to the Orthopedic Foundation for Animals to check for hip dysplasia and other genetic conditions.


St. Marks Veterinary Hospital has a traveling ultrasonographer that comes to our practice to perform ultrasounds and echocardiograms for our patients. Ultrasound technology is a wonderful diagnostic tool used to identify internal concerns, allowing us to examine your pet's internal organs, chest, and abdomen, all without surgery or sedation. This tool is primarily used for examination of the organs of the abdominal cavity, identification and examination of pregnancy, evaluating the heart, and taking bladder scans. This procedure is relatively simple to perform, and often pets are quite comfortable and relaxed during their examinations. It is important to note that pets should be fasted before ultrasound procedures, and we will need to shave pets who are receiving echocardiograms or abdominal ultrasounds.


One of our favorite diagnostic tools at St. Marks Veterinary Hospital is endoscopy. An endoscope is a long, thin tube with a camera on the end, and it can be used to examine organs internally. The images are then brought up on a screen for our veterinarians to evaluate. We use this state-of-the-art tool for visual examination of internal organs, biopsies, foreign body or mass removals, and more. This tool allows us to use a minimally invasive approach to internal examination, allowing for quicker recovery and less pain. We use this tool to examine or perform surgery on primarily:

  • Mouth
  • Esophagus
  • Stomach
  • Small intestine
  • Colon
  • Video Otoscopy

Many patients at St. Marks Veterinary Hospital experience chronic or acute ear problems. This is a way that a number of pet health conditions manifest themselves. Our video otoscope allows us to examine the inside of your pet's ear to search for the cause of their problems and examine the extent of their ear discomfort. Some common problems we identify are ear infections, allergies, ear mites, foreign bodies, growths, and polyps. This examination only takes minutes and is pain-free for your pet.

Tonometry (Glaucoma Testing)

We provide tonometry or glaucoma testing at St. Marks Veterinary Hospital. This condition is one which can be very dangerous, so it is important to identify and diagnose it right away. When a patient has glaucoma, fluid pressure inside the eye increases, causing damage to the optic nerve, loss of vision, and potentially complete blindness. Some symptoms of glaucoma may include:

  • Eye redness
  • Discharge or tearing
  • Sensitivity to light
  • Pain
  • Cloudiness in the eye
  • Bulging eye

This test is performed with a tool called a “tonometer” which measures the fluid pressure inside the eye, The test is non-invasive and should not cause pain or discomfort for the patient. We perform this test with a mild anesthetic eye drop to ensure comfort. We recommend taking baseline measurements for pets throughout their life since IOP (Intraocular Pressure) varies so much between species, breeds, and individuals.

Laboratory Analysis

At St. Marks Veterinary Hospital, we perform a variety of diagnostic tests for our patients. More importantly, we can process and analyze many of these test results right in our facility. Our complete, in-house laboratory provides basic testing, such as fecal, blood glucose, blood chemistries, electrolytes, urine, ear cytology, feline leukemia and FIV testing in cats and gram stains of stools of birds, as well as specialized tests for senior pets. We have specialized instruments and diagnostic capabilities that allow us to have results quickly and efficiently. If needed, we are also able to send tests to a local reference laboratory. The turn-around time is usually 1-3 days, depending on the tests requested.

Contact Us

St. Marks Veterinary Hospital


348 E 9th St New York , NY 10003

Clinic Hours

Open 7 Days A Week! Sun-Sat: 9AM to 5PM