Taking the history at the first veterinary visit

The first error, and the most common under time pressure, is to start straight away with closed questions that confirm a hypothesis already formed. Asking whether the dog vomits brings a yes or a no; asking the owner to describe what they noticed brings the whole scene, including the details the owner did not think relevant and which are often the decisive ones. The correct sequence is a funnel: open with a broad question, let the owner speak without interrupting, and only then narrow onto the missing particulars.

Letting the account finish without cutting it at the first keyword has a value beyond courtesy. Whoever interrupts early to chase their own suspicion loses the information that would have arrived ten seconds later, and steers the owner to report only what seems to interest the clinician. Closed questions remain indispensable, but they come afterwards, to fill the precise gaps the free narrative has left.

A complete history touches a few fixed areas, regardless of the reason for the visit. Skipping one because it seems off topic is the most frequent way to miss the fact that explains the case.

The owner often arrives with a diagnosis ready made: they say the animal has a stomach ache, is depressed, is having seizures. These are interpretations, not observations, and taking them at face value closes the reasoning before opening it. The clinician's task is to bring the account back to observable facts.

• When someone says seizure, ask them to describe what they saw: duration, loss of consciousness, movements, recovery. Many episodes described this way are syncopes or tremors.
• When someone says the animal is not eating, ask whether it refuses even the most palatable food or only its usual ration, and whether it approaches the bowl and then backs off.
• When someone says the animal has lost weight, ask on what basis, whether they weighed it or it is an impression, and over what time.
• When someone brings a diagnosis made elsewhere, ask which tests it rests on, without taking it as given or dismissing it outright.
• When someone plays it down, ask about the basic functions, because owners adapt to slow decline and do not report it spontaneously.

Translating every interpretation into the concrete behaviour that generated it is effortful and lengthens the conversation by a few minutes, but it is what separates a history that orients from one that confirms bias. The owner stays the source, not the interpreter.

A well taken history recorded badly is lost at the next visit, perhaps done by a colleague. Recording is part of the taking, not a separate chore.

1. 1

   Write the owner's words, not only your conclusions

   Recording that the dog fell after stiffening preserves reusable data; writing only suspected seizure erases it.

2. 2

   Fix the timeline with dates, not adverbs

   For three days is worth far more than recently, because it stays readable in six months and allows comparison with the course.

3. 3

   Note the relevant negatives too

   Recording no outdoor access and no vomiting rules out hypotheses in a traceable way, useful to whoever reads the record later.

4. 4

   Separate reported from observed

   Distinguishing what the owner reports from what you find prevents an impression from becoming a fact in the record.

5. 5

   Make the history retrievable from the owner

   When the owner can bring a recorded history of weight, appetite and episodes, the history starts from data and not from memory.

The diary kept by the owner between visits is the most underrated ally of history taking. A weight trend, the frequency of a symptom or the dates of a recurring episode turn the memory based account, always distorted, into a series of data the clinician can read in seconds.