It is a matter of clinical judgement in the circumstances of each individual case, how often the updating of the patient’s medical history should take the form of a further written questionnaire, or whether it is sufficient for it to be done verbally.

If the latter, the discussion should in any event be confirmed by means
of a dated entry in the clinical records. A compromise solution would be a supplementary sheet, or even a rubber stamp on the reverse of the original medical history form, to the effect that the patient has read the previous responses to the medical history questionnaire, and confirms that this information is still correct. This should again be signed and dated by the patient.