Informed consent in veterinary practice: what it must contain

Rules differ from country to country and should be checked with the local professional body, but the substantive requirements recur regardless of jurisdiction. Consent holds when it is informed, meaning the person received the information needed to decide; comprehensible, meaning that information was within their reach; voluntary, meaning it was not obtained through pressure or at a moment when refusal was impossible; and current, meaning it refers to the procedure about to be carried out rather than to a blanket authorisation signed months earlier.

• Informed: the content is specific to the procedure proposed, not a list valid for any intervention.
• Comprehensible: language without unexplained abbreviations, with an active check of understanding before signing.
• Voluntary: refusal is a workable choice, and its consequences were described without coercive tones.
• Current: it refers to this procedure, on this date, with the clinical picture recorded in the file.
• Traceable: it shows who informed, who signed, when, and what was handed over as a copy.

A form usable in a real practice fits on one page and holds a fixed part, identical for every procedure, and a specific part completed on the spot. The specific part is what turns a generic sheet into consent: without it the document does not show that this animal and this procedure were discussed.

Two lines make the difference when a dispute arises and cost ten seconds: a space where the owner writes in their own hand a question they asked and the answer received, and a box confirming they received a copy of the document.

The language of risk has two opposite enemies: minimising, which invalidates consent by removing information, and an exhaustive list of catastrophic events, which produces fear rather than understanding. The workable route is the one already used in the authorised information of veterinary medicines, which classifies frequency into five numerically defined classes.

Three habits make the conversation understandable. The first is using natural frequencies rather than percentages: one animal in a hundred lands better than one per cent. The second is always giving numerator and denominator, because a doubled risk means nothing without knowing the baseline. The third is asking the person to restate in their own words what they understood, which remains the fastest way to catch a misunderstanding before rather than after.

A decision made without knowing the order of magnitude of the cost is not a free decision, and in practice it is the leading cause of conflict after a procedure that went well. The estimate should therefore be treated as an integral part of consent, with the same care given to clinical risks.

• State a range rather than a single figure, saying what is included and what stays out, for example prolonged hospitalisation or follow up tests.
• Agree in advance a deviation threshold beyond which the owner is called before proceeding, for example twenty per cent above the stated range.
• Put in writing who makes the call and to which number, because whoever is operating cannot be on the phone.
• Separate deferrable urgency from immediate urgency: in the second you act and inform as soon as possible, and this rule must be stated beforehand.
• Where insurance exists, make clear that the financial relationship stays between practice and client, while reimbursement is a later matter between client and insurer.

A signed estimate also has an underrated clinical use: it makes explicit the perimeter within which you are authorised to move, and therefore allows you to proceed without hesitation when a finding that falls inside that perimeter appears during the procedure.

The ordinary route works when there is an adult owner, present and informed. Situations that depart from that pattern are frequent and should be settled by rules decided in advance, not in front of the individual case.

1. Someone other than the owner brings the animal: you need written authority or at least a documented phone contact with the decision maker, noted in the record with time and content.
2. Animal in shared ownership or in an extended family: decide at intake who the point of contact for decisions is, and record it in the file.
3. A minor brings the animal: you still inform them, but the decision must be obtained from a responsible adult before proceeding.
4. Emergency with an unreachable owner: carry out what is needed to avoid suffering and danger to life, document the contact attempts with times, and inform as soon as possible.
5. Found animal with no known owner: follow the locally prescribed procedure for strays and document every step, including notification to the competent authority.
6. Euthanasia: requires a dedicated form, with certain identification of the animal and of the decision maker, and must never be signed at the desk between two consultations.

The value of a consent is measured years later, when you need to show that certain information was given. That depends less on the medium and more on three properties: a certain date, the integrity of the document and the ability to reconstruct who accessed it.

1. 1

   Attach the form to the record

   A consent filed in a binder separate from the clinical record is hard to retrieve and does not demonstrate the link with that visit. It belongs in the same file as the animal, referenced to the same date.

2. 2

   Keep the version handed over

   If the form changes over time, keep the version signed on that day rather than the current one. Each revision of the text should be numbered and dated.

3. 3

   Record the handover of the copy

   A signed box or a traced electronic delivery shows the owner had the chance to reread. This is the element most often missing.

4. 4

   Keep track of access

   An audit log showing who opened or modified a document supports archive integrity far better than any declaration.

In the Animiyo clinic workspace the signed consent has its own section, alongside the discharge form, estimates and invoices, treatment plans and the anaesthesia record. The audit log, available in the security area, tracks document access for professional profiles.