We audited the case records of 493 new patients referred to a chest cl
inic to determine for eight consultants and five middle-grade staff th
e average number of investigations performed, the follow-up rate and p
rolixity (the length of the letter written to the general practitioner
). The outcome of the consultation was assessed by a questionnaire adm
inistered to the patients' general practitioners. Practitioner mean in
vestigation rates varied from 0.1 to 8.7 investigations per patient, f
ollow-up rate from 45 to 100% and average prolixity from 53 to 200 mm.
The prolixity of the eight consultants was significantly related to t
heir investigation and follow-up rates. Consultation outcome was at le
ast satisfactory for 97.4% of patients. We conclude that considerable
potential exists for savings of laboratory, clinic and secretarial tim
e and costs by reducing investigation and follow-up rates and writing
shorter letters to general practitioners.