This standard specifies the diagnostic criteria and treatment principles for occupational heat stroke. This standard applies to the diagnosis and treatment of heat stroke that occurs during production labor (factories, mines, farms and other open-air operations, etc.) and sports competitions. Non-occupational heat stroke can also be implemented as a reference. GBZ 41-2002 Occupational Heat Stroke Diagnosis Standard GBZ41-2002 Standard Download Decompression Password: www.bzxz.net

1CS13.100
National Occupational Health Standard of the People's Republic of China GBZ41-2002
Diagnostic Criteria of Occupational Heat Illness2002-04-08 Issued
2002-06-01 Implementation
Ministry of Health of the People's Republic of China
Article 6.1 of this standard is recommended, and the rest are mandatory. This standard is formulated in accordance with the "Law of the People's Republic of China on the Prevention and Control of Occupational Diseases". From the date of implementation of this standard, if the original standard GB11508-1988 is inconsistent with this standard, this standard shall prevail. When working in high temperature, heat stroke may occur due to the disorder of heat balance and water-salt metabolism. In order to protect health and facilitate the prevention and control of heat stroke, this standard is specially formulated. This standard stipulates the diagnostic criteria and treatment principles of occupational heat stroke to ensure that heat stroke occurs when working in factories, mines, farms and other open-air working environments, as well as in sports competitions and military training. Appendix A of this standard is an informative appendix.
This standard is proposed and managed by the Ministry of Health of the People's Republic of China. This standard was drafted by Tongji Medical College of Huazhong University of Science and Technology. The participating units include Union Hospital Affiliated to Huazhong University of Science and Technology.
This standard is interpreted by the Ministry of Health of the People's Republic of China. Occupational heat stroke diagnosis standard
GBZ41-2002
Occupational heat stroke is an acute disease with central nervous system and (or) cardiovascular disorders as the main manifestations caused by heat balance and (or) water and salt metabolism disorders in a high-temperature working environment. 1 Scope
This standard specifies the diagnostic criteria and treatment principles for occupational heat stroke. This standard is applicable to the diagnosis and treatment of heat stroke occurring during production labor (factories, mines, farms and other open-air operations, etc.) and sports competitions. Non-occupational heat stroke can also be implemented by reference. 2 Normative references
The clauses in the following documents become the clauses of this standard through reference in this standard. For any dated referenced document, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, parties reaching an agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For any undated referenced document, the latest version shall apply to this standard.
GB/T16180
3 Diagnostic principles
Identification of the degree of disability caused by work-related injuries and occupational diseases of employees Based on the occupational history (mainly the meteorological conditions during work) and the main clinical manifestations such as elevated body temperature, myalgia or syncope of high-temperature workers, and excluding other similar diseases, occupational heatstroke can be diagnosed. 4 Premonitory signs of heatstroke
Premonitory signs of heatstroke (observation object) refer to the symptoms of dizziness, headache, thirst, sweating, general fatigue, palpitations, lack of concentration, uncoordinated movements, etc. after working in a high-temperature workplace for a certain period of time, and the body temperature is normal or slightly elevated. 5 Diagnosis and classification standards
5.1 Mild heatstroke
Mild heatstroke, in addition to the aggravation of the symptoms of heatstroke precursors, also presents with flushed face, heavy sweating, rapid pulse, and body temperature rising to above 38.5℃.
5.2 Severe heatstroke
Severe heatstroke can be divided into three types: heat stroke, heat cramps, and heat exhaustion. Mixed types may also occur. 5.2.1 Heatstroke
Heatstroke (including sunstroke) is also known as heatstroke-induced high fever. It is characterized by sudden onset in a high temperature environment, with a body temperature of more than 40℃, heavy sweating in the early stage of the disease, followed by "no sweating", and may be accompanied by dry and hot skin and varying degrees of impaired consciousness. 5.2.2 Heat cramps
Heat cramps are mainly manifested by obvious muscle cramps accompanied by contraction pain. They are prone to occur in the limb muscles and abdominal muscles that are more active, especially in the intestinal muscles. They are often symmetrical. Sometimes it attacks, sometimes it eases. The patient is conscious and the body temperature is generally normal. 5.2.3 Heat exhaustion
It has a rapid onset, and the main clinical manifestations are dizziness, headache, sweating, thirst, nausea, vomiting, followed by cold and wet skin, decreased blood pressure, heart rhythm disorder, mild dehydration, and slightly high or normal body temperature. 6 Treatment principles
Treatment principles
6.1.1 Precursors of heat stroke: temporarily leave the high temperature scene and observe closely. 6.1.2 Mild heat stroke: quickly leave the high temperature scene and rest in a ventilated and cool place; give salt-containing cool drinks and symptomatic treatment. 6.1.3
Severe heat stroke: quickly cool down physically and (or) drugs; correct water and electrolyte disorders; symptomatic treatment. 6.2 Other treatments
Patients with heat stroke can generally recover quickly after timely treatment, and do not need to be transferred from their original work. Instructions for the correct use of this standardbzxZ.net
See Appendix A (Informative Appendix).
Appendix A
(Informative Appendix)
Instructions for the correct use of this standard
A.1 This standard applies to heat stroke that occurs during production labor (factories, mines, farms and other open-air operations, etc.), sports competitions and military training.
A.2 To diagnose occupational heat stroke, the meteorological conditions of the patient's workplace [air temperature, humidity and (or) thermal radiation intensity] should be understood. In summer, open-air workplaces mainly measure the air temperature. A.3 According to the clinical manifestations of heat stroke, it is divided into mild heat stroke and severe heat stroke. Severe heat stroke can be divided into three types: heat stroke (including sunstroke), heat cramps and heat exhaustion, and there may also be mixed types. A.4 Diagnosis and differential diagnosis of heat stroke
Heat stroke is mainly diagnosed based on the sudden onset of the disease in a high temperature environment and the three characteristics of high fever, severe central nervous system symptoms and dry and hot skin. It is best to measure the body temperature with rectal temperature. The main thing is to make a differential diagnosis from other diseases that cause high fever accompanied by coma, such as encephalitis and meningitis, cerebral disease, postpartum infection, cerebral hemorrhage coma, etc.
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