There is no single best way to document informed consent. In some situations, 
such  as an immunization clinic, having the patient sign a preprinted consent 
form is  optimal. In other situations, such as elective experimental treatment, a 
videotape of  the physician’s talking to the patient may be desirable. The form 
of documentation  must fit the circumstances of the actual transaction between 
the physician and the  patient. The most important consideration is that the 
documentation reflect the  physician’s conversation with the patient. “The 
patient was given the appropriate  information and consented to the treatment” 
is too brief and vague. Long preprinted  forms tend to be so broad that it is not 
possible to establish that they describe the  actual conversation with a specific 
patient.