Isolating the impact of psychiatric consultations in the general hospital: psychiatric comorbidities and nursing intensity.

The amount of nursing services represents a substantial portion of the total cost of hospital treatment of medical/surgical patients. Patients receiving psychiatric consultations were compared to matched patients (DRG and LOS) who did not receive psychiatric services on the intensity of their nursing service needs. These two groups were then compared on the measure of nursing intensity before and after the timing of the consultation. Those who received a consultation had significantly lower intensity scores prior to seeing the psychiatrist. Although patients receiving psychiatric consultations did not show a significantly greater reduction in nursing acuity relative to their baseline levels than did the matched control patients, the amount of time the psychiatrist spent with consultation patients was positively related with the change in nursing intensity post-consultation.