An elevated liver enzyme is a finding, not a diagnosis, and the pattern usually tells you more than the magnitude. ALT and AST reflect hepatocellular leakage, ALP and GGT track cholestasis, and their differing half-lives are what make recheck timing a clinical decision rather than a default interval. A mild ALT increase in a well [...]

A chronically coughing cat may well be asthmatic, but infectious bronchopneumonia, Mycoplasma, lungworm, heartworm-associated respiratory disease, and airway neoplasia all sit close enough on history and radiographs that a bronchial pattern plus a steroid response does not close the case. Most of these cats arrive with a "hairball" history, which usually means the cough has [...]

A refractory immune-mediated case that has not responded to standard first-line immunosuppression usually calls for two moves at once: confirming the diagnosis is actually correct and searching hard for an underlying trigger the immune system is reacting to, then escalating to or layering in second-line immunomodulatory therapy. Immune-mediated disease behaves as a broad category with [...]

Safer anesthesia in a high-risk patient starts long before induction, with a workup and protocol built around that specific patient rather than a standard template. A brachycephalic, geriatric, cardiac, or renally compromised patient carries risk that is real but largely modifiable through prospective planning, drug selection matched to the underlying disease, and monitoring that anticipates [...]

Radiographs reach their diagnostic ceiling the moment the clinical question outruns what superimposed, two-dimensional, low-contrast tissue imaging can answer. That happens more often than a busy general practice has time to catalog: a soft tissue mass that needs cross-sectional characterization, a suspected portosystemic shunt where flow matters more than form, a murmur whose severity lives [...]

Endocrine disease follows the textbook until it doesn't, and the cases that don't follow the rules are the ones that quietly consume the most clinical time. A diabetic dog whose glucose curves look reasonable but who keeps losing weight. A cat whose hyperthyroidism is controlled on methimazole but whose creatinine is now climbing. A dog [...]

Neurolocalization is one of the highest-leverage skills in small animal medicine, and it is also one of the easiest to short-cut on a busy day. A circling, head-pressing dog and a symmetrically ataxic one can both arrive as "she's just acting weird," but the workup, the urgency, and the referral conversation diverge the moment you [...]

A dog presents with a rectal temperature of 104.8°F, lethargy, and anorexia. The CBC, chemistry panel, and urinalysis reveal nothing definitive. Supportive care resolves the fever within 48 hours, and two weeks later the same dog returns with a 105.2°F temperature and the same nonspecific picture. This is the clinical scenario that defines fever of [...]

The Limping Dog with Normal Radiographs: What Are You Missing? A dog presents with a three-week history of intermittent right front limb lameness. The owner reports it is worse after rest and improves after a few minutes of movement. You do a thorough orthopedic examination, take high-quality radiographs of the shoulder, elbow, and carpus, and [...]

Persistent gastrointestinal signs are among the most frequently encountered presentations in small animal general practice and among the most likely to become diagnostic dead ends when managed empirically without a structured workup. A dog with recurring soft stools and occasional vomiting may cycle through metronidazole and bland diet protocols for months before anyone asks why [...]