METHOD FOR SELECTING TRAINED WORKERS MAINTAINING RAILROAD TUNNEL INTO RISK GROUP OF INCIPIENT SIGNS OF HEALTH SITUATIONS

摘要

FIELD: medicine.;SUBSTANCE: method involves measuring total blood thyroxin, conducting spinal X-ray osteodensitometry and spirometry, and measuring mineral bone density at the lumbar level of L2-L3, and maximal expiratory flow at 25% and 50% of respiratory function. The obtained data are used to calculate F by formula F=25.1-0.14×a₁-15.7×a₂+0.42×a₃-0.034×a₄, wherein 25.1 is a constant; 0.14; 15.7; 0.42; 0.034 are discriminant coefficients; a_{1, 2,}…_{, 4} are numerical values of the conducted examination; a₁ is the total thyroxin concentration, nmol/l; a₂ is a bone L2-L3 density coefficient; a₃ is the maximal expiratory flow at 25% according to respiratory function, %; a₄ is the maximal expiratory flow at 50% according to respiratory function, %. If F is equal to or more than the constant, the patient is stated to have no signs of health situations specific for this type of industry; if F is less than the constant, the patient is referred to a risk group of health situations.;EFFECT: method enables detecting the incipient signs of health situations in workers.;1 tbl, 3 ex