Sustained Heart Rate minus the individual's age is above
180 beats per minute. (Heart Rate - Age > 180)
Recovery Heart Rate at one minute after a peak work
effort is great than 100 beats per minute.
Body Core Temperature is greater than 101.3 F (38.5 C) for medically selected
and acclimated workers
Body Core Temperature is greater than 100.4 F (38.0 C) in unselected,
Sudden and severe fatigue, nausea, dizziness, or lightheadedness.
Workers appear disoriented or confused, or suffer inexplicable irritability, malaise, or
Sweating stops and skin becomes hot and dry. Seek immediate emergency care with
hospitalization. Call ext. 2222 on site.
Profuse sweating is sustained over a couple of hours.
Weight loss over a shift is greater than 1.5% ob body weight.
24 hour urinary sodium excretion is less than 50 nmoles.
One of ten national laboratories overseen and primarily funded by the Office of Science of the
U.S. Department of Energy (DOE), Brookhaven National Laboratory conducts research in the physical,
biomedical, and environmental sciences, as well as in energy technologies and national security.
Brookhaven Lab also builds and operates major scientific facilities available to university, industry
and government researchers. Brookhaven is operated and managed for DOE's Office of Science by Brookhaven
Science Associates, a limited-liability company founded by the Research Foundation for the State
University of New York on behalf of Stony Brook University, the largest academic user of Laboratory
facilities, and Battelle, a nonprofit applied science and technology organization.