Regarding physical examination, according to GBZ 188-2007:
5. 19 benzene (refers to contact with industrial toluene and xylene)
English: benzene
CASNo.: 7 1-43-2
5. 19. 1 pre-job occupational health examination
5. 19. 1. 1 Occupational contraindications of target diseases:
(1) The following abnormalities were found in routine blood tests:
The white blood cell count is lower than 4.5×109/l;
Platelet count is lower than 8×1010/l; +00/ liter;
The red blood cell count is lower than 4× 10 12/L for men and 3.5×10/kloc-2/l for women, or the hemoglobin content is lower than 120g/L for men and1/kloc-for women.
(2) Hematopoietic diseases, such as various types of anemia, leukopenia and agranulocytosis, hemoglobinopathy, hematological tumors and coagulation disorders;
(3) Hypersplenism
5. 19. 1.2 inspection contents
(1) Symptoms query focuses on symptoms of nervous system and blood system, such as headache, dizziness, fatigue, insomnia, dreaminess, memory loss, skin and mucous membrane bleeding, abnormal menstruation, etc.
(2) Physical examination routine examination of internal medicine
(3) Laboratory and other inspections
A. Required items include blood routine, urine routine, serum ALT and electrocardiogram.
B. choose hemolysis test and liver and spleen B-ultrasound.
5. 19.2 occupational health examination during working.
5. 19.2. 1 target disease
(1) Occupational diseases
A. Occupational chronic benzene poisoning (see GBZ68)
B. Leukemia caused by occupational benzene (see GBZ94)
(2) Hypersplenism in occupational contraindications.
5. 19.2.2 inspection contents
(1) Symptoms query focuses on symptoms of nervous system and blood system, such as headache, dizziness, fatigue, insomnia, dreaminess, memory loss, skin and mucous membrane bleeding, abnormal menstruation, etc.
(2) Physical examination routine examination of internal medicine
(3) Laboratory and other inspections
A. Required items: blood routine (pay attention to cell morphology and classification), urine routine, serum ALT, electrocardiogram and B-ultrasound of liver and spleen.
B. Selected items: urine anti-sticky furoic acid determination, urine phenol, bone marrow puncture and hemolysis test.
5. 19.2.3 If the blood indexes of the subjects are abnormal, they should be rechecked 1 time within 1~2 weeks, and rechecked 3 times in a row.
5. 19.2.4 health examination cycle
(1) Workers' exposure to benzene exceeds the national hygienic standard: 1 year, 1 time;
(2) The concentration of workers exposed to benzene meets the national health standard: within 2 years 1 time.
5. 19.3 emergency occupational health examination
5. 19.3. 1 occupational acute benzene poisoning (see GBZ68)/ occupational acute toluene poisoning (see GBZ 16)
5. 19.3.2 inspection contents
(1) Symptoms inquiry focuses on drunken symptoms such as dizziness, headache, nausea, vomiting, irritability, and stumbling.
(2) Physical examination
A. Routine examination of internal medicine
B. routine examination of nervous system and cerebellum function
(3) Laboratory and other inspections
A. Required items include blood routine, urine routine, liver function, electrocardiogram and B-ultrasound of liver and spleen.
B, urine anti-sticky furoic acid, urine phenol and blood benzene are selected.
5. 19.4 occupational health examination when leaving the post
5. 19.4. 1 target disease
(1) Occupational chronic benzene poisoning
(2) Leukemia caused by occupational benzene
5. 19.4.2 The inspection items are the same as those during the on-the-job period.