How does a lack of information impact clinicians in assigning specific diagnoses of their patients' conditions?

No
nurse or physician can be expected to make a completely accurate diagnosis of a patient's
condition absent the relevant information. While it seems tautological to suggest that such a
situation would never arise, that is far from true. Hospital emergency rooms frequently receive
patients delivered by ambulance or by police the identification of whom is unknown for an hour
or more. As such, there is no case history to accompany this "John Doe" patient from
which attending medical staff can begin to assess the unidentified patient's condition. In the
case of a shooting or stabbing victim, the ailment is obvious. In cases in which an unidentified
patient is suffering from an unknown illness, however, it is incumbent upon medical staff to
make a preliminary assessment based solely upon the patient's "vitals," such as blood
pressure and body temperature....