SAN ANTONIO, June 10 (UPI) -- Some nurses are better than others at remaining alert during successive 12-hour shifts, U.S. researchers found.
Principal investigator Jeanne Geiger-Brown, associate professor at the University of Maryland School of Nursing in Baltimore, said the study involved 80 registered nurses who worked three successive 12-hour shifts, day or night. Reaction times were measured using the 5-minute Palm Psychomotor Vigilance Test.