Once the doctor has admitted these basic truths, I can often point out areas within his records that are not complete, thorough or accurate. This line of questioning establishes a basic inconsistency. The same thing can and should be done at trial.
The natural extension of this line of questioning is that the doctor failed to record certain information. However, there are often excuses arising from missing information in a patient's chart.
The first is that the doctor did not ask a particular question. An alternative may be that the doctor asked and got an answer that was insignificant. The doctor may argue that because the answer was insignificant, he did not feel that warranted an entry in the record. Another alternative is that the doctor did ask, received an answer and simply forgot to record the information in the chart.
It is the attorney's job to distinguish which one of these alternatives occurred.
The only way to show this type of contradiction is by getting the doctor to first admit the significance of having accurate, complete and thorough medical records.