TY  - JOUR
PY  - 1989//
TI  - Central station data displays: an experimental evaluation of observer performance. Part 1: Number of displays and observation time
JO  - Intensive care medicine
A1  - Crew, A. D.
A1  - Old, S.
A1  - Graig, A.
A1  - Unsworth, G. D.
A1  - Fletcher, P. C.
SP  - 314
EP  - 318
VL  - 15
IS  - 5
N2  - 16 experienced ICU nurses monitored simulated central station VDU displays for the occurrence of ectopic beats and for signs of deterioration in general cardiovascular status. Each period of monitoring lasted for 1 h, and on separate occasions each nurse monitored 1, 2, 4 or 6 displays simultaneously. As the number of observed screens increased, performance declined significantly, with reduced identifications of discrete events (e.g., ectopic beat detections), and with increased delays in determining a deterioration in cardiovascular status; in addition, a secondary task was less accurately and efficiently performed, and the nurses tended to become increasingly fatigued. Efficient observing was maintained over the 1 h monitoring period, but only at considerable cost in terms of fatigue and a loss of alertness. The results suggest that there may be restrictions in the use of complex central station facilities at first-line observation posts for patient care.<p /> <p>Language: en</p>
LA  - en
SN  - 0342-4642
UR  - http://dx.doi.org/
ID  - ref1
ER  -