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Internal Medicine

Veterinary Internal Medicine for your pets

We are thrilled to share that Dr. Allison Deatherage has joined our Internal Medicine team with appointments available Monday through Thursday.

Pet patients sometimes develop the kind of complex internal illnesses and conditions that may require specialized veterinary care. The veterinary internal medicine specialty covers illnesses that involve your pet’s internal organs. These include the digestive system, kidneys, liver, lungs, spleen, and endocrine system (adrenal glands, thyroid, pancreas) as well as disorders of the blood, immune system, and infectious diseases. When your pet exhibits certain symptoms, your family veterinarian may recommend that you bring your pet to our Castle Rock animal hospital for help in diagnosing and treating both urgent and chronic illnesses.  

Meet Our Doctor

Allison Deatherage

Allison Deatherage, MS, DVM
Residency Trained in Internal Medicine

Diagnosing Your Pet’s Illness

To help diagnose your pet’s illness, we may look at your pet’s internal systems as the possible source of internal illness or underlying conditions, including:

  • Endocrine—For conditions including diabetes, thyroid, and other hormonal and metabolic disorders
  • Digestive/Gastrointestinal—For conditions affecting the digestive system, including the stomach, liver, pancreas, and intestinal tract
  • Hematologic—For conditions impacting the blood, bone marrow, liver, lymph nodes, spleen, or tonsils
  • Immune—For disorders causing joint swelling, anemia, and other symptoms
  • Renal and Urinary—For conditions affecting the kidneys and urinary tract that cause the body to be unable to flush toxins
  • Respiratory—For conditions affecting the lungs and the upper airway
  • And for the possibility of infectious diseases—These could be viral, fungal, bacterial, or insect-borne diseases

With the goal of maintaining or improving your pet’s quality of life, or to stabilize a chronic disease process, we may suggest therapeutic treatment. This could include prescribing a special medication or diet, or if oral nutrition is not possible, then intravenous nutrition or feeding tube placement may be recommended. Certain conditions may also require blood transfusions, supplemental oxygen, or other assistance.

If your pet exhibits multiple areas of concern, our Castle Rock veterinary hospital’s emergency and specialty care experts can provide additional assistance. We can also help you and your family veterinarian manage care and treat any pain that your pet may be experiencing.

My Pet Needs Internal Medicine Care. What Happens Next?

As pet parents ourselves, we understand that seeking treatment for a pet in distress can be stressful and we strive to provide compassionate care. Please consider us as a resource, and feel free to book an appointment directly at Veterinary Specialists of the Rockies by calling 303.660.1027 (no referral is needed). Or feel free to have your family vet contact us. We are honored to be able to help pets and their people through these challenging times.


Meet Our Internal Medicine Staff