General Veterinary Medicine and Surgery (Foundation Knowledge)
Core concepts
This domain tests the foundational internal medicine and surgery knowledge that underpins critical care decisions: pathophysiology of common diseases (renal, hepatic, endocrine, gastrointestinal, cardiac, hematologic), fluid and electrolyte/acid-base physiology, pharmacology and drug interactions, anesthesia and analgesia principles, wound management, and surgical decision-making. You should understand how to interpret a minimum database (CBC, chemistry, urinalysis), recognize when a patient is a poor anesthetic candidate, and know basic surgical tenets such as asepsis, hemostasis, tissue handling, and appropriate timing of surgery (damage control vs definitive repair).
Traps in questions
Questions often test integration rather than isolated facts: a vomiting patient with azotemia and a high fractional excretion of sodium, or a cat with a heart murmur before anesthesia. Beware of electrolyte corrections done too fast (sodium, potassium, calcium) and of acid-base interpretation errors; calculate the anion gap and check for mixed disorders. Distinguish prerenal from renal azotemia and know that fluid therapy can unmask or correct either. In surgery, remember that stabilization precedes definitive repair in unstable patients, and that antibiotic prophylaxis timing and aseptic technique are commonly tested. Do not confuse species-specific drug sensitivities (e.g., cats and certain drugs) with general dosing.
Worked example
A dog with a 3-day history of vomiting has a sodium of 160 mmol/L. Rapid correction risks cerebral edema. Rule of thumb: correct chronic sodium disorders slowly (generally no more than about 10–12 mmol/L per 24 hours) and use isotonic fluids designed for the deficit, reassessing electrolytes frequently. For surgery, stabilize perfusion and oxygenation first, then proceed.