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GBZ87-2002 English PDF

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GBZ87-2002: Diagnostic Criteria of Occupational Chronic Thallium Poisoning
Status: Obsolete

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
GBZ 87-2002	English	239	Add to Cart	2 days [Need to translate]	Diagnostic Criteria of Occupational Chronic Thallium Poisoning	Obsolete	GBZ 87-2002

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Basic data

Standard ID	GBZ 87-2002 (GBZ87-2002)
Description (Translated English)	Diagnostic Criteria of Occupational Chronic Thallium Poisoning
Sector / Industry	National Standard
Classification of Chinese Standard	C60
Classification of International Standard	13.1
Word Count Estimation	6,651
Date of Issue	4/8/2002
Date of Implementation	6/1/2002
Regulation (derived from)	Health-Communication (2010) 6

GBZ87-2002: Diagnostic Criteria of Occupational Chronic Thallium Poisoning

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Diagnostic Criteria of Occupational Chronic Thallium Poisoning Significant ICS 13.100 C60 GBZ People's Republic of China National Occupational Health Standards Diagnosis of Occupational Chronic Thallium Poisoning Released in.2002-04-08 2002-06-01 Implementation Issued by the Ministry of Health of the People's Republic of China

Foreword

Article 6.1 of this standard is recommended and the remainder is mandatory. According to the "People's Republic of China Occupational Disease Prevention Law" to develop this standard. Long-term exposure to thallium in the professional activities, often due to improper protection caused by chronic thallium poisoning, in order to protect the health of contacts, Easy to carry out thallium poisoning prevention and control work, the development of this standard. This standard highlights the clinical significance of chronic exposure to thallium to the nervous system, in particular the peripheral nervous system, According to its degree of diagnosis and classification. Other common clinical manifestations of chronic thallium poisoning such as hair loss, optic nerve damage, etc. in the diagnosis In the role of the specific provisions. Appendix A to this standard is an informative appendix. This standard is proposed and centralized by the Ministry of Health of the People's Republic of China. This standard is drafted by Jiangxi Institute of Occupational Health and Occupational Disease Prevention and Control, China Center for Disease Control and Prevention And poisoning control, Jiangxi Province, Gao County Health and Epidemic Prevention Station to participate in the drafting. This standard is interpreted by the Ministry of Health of the People's Republic of China. Diagnostic criteria for occupational chronic thallium poisoning Occupational chronic thallium poisoning is caused by long-term exposure to thallium-containing soot, aerosols or soluble thallium salts in occupational activities To the nervous system damage-based systemic disease.

1 Scope

This standard specifies the diagnostic criteria and principles of occupational chronic thallium poisoning. This standard applies to the diagnosis and treatment of occupational chronic thallium poisoning, non-occupational diagnosis of chronic thallium poisoning can also refer to the executive Row.

2 normative reference documents

The terms of the following documents are hereby incorporated by reference into this standard. Any date that references the date of the document All subsequent amendments (excluding corrigenda) or revisions do not apply to this standard, however, The parties to the agreement are able to use the latest version of these documents. Those who do not mind the date of the reference file, its latest The version applies to this standard. Identification of Occupational Injury and Occupational Disease Disability in Staff and Workers GB/T 16180

3 diagnostic principles

According to long-term close contact with thallium career history, with neurological damage, hair loss and other clinical manifestations, combined with on-site health Study the data and urine thallium determination results, and exclude other causes of similar diseases, can be diagnosed.

4 observation object

Has one of the following. a) appear fatigue, lower limb weakness, limb numbness and other symptoms; b) Nerve-electromyography shows typical symptoms and signs of suspected neurogenic damage without peripheral nerve damage; c) increased urinary thallium

5 Diagnostic and grading standards

5.1 mild poisoning Has one of the following. a) bipedal, plantar hyperalgesia, lower limb symmetry socks-like distribution of pain, touch or tuning fork vibration disturbance, While Achilles tendon reflexes weakened; b) the above performance is mild or not obvious, but the nerve - electromyography shows neurogenic damage; c) mild optic neuropathy or retinopathy; d) obvious hair loss. 5.2 severe poisoning Has one of the following. a) limb distal sensory disturbances, Achilles tendon reflex, with limb muscle strength decreased significantly, affecting motor function; or limbs Distal muscle atrophy; electromyography showed neurogenic damage, with nerve conduction velocity was significantly slowed or evoked potential was significantly reduced; b) optic atrophy; c) toxic encephalopathy; d) Toxic psychosis.

6 Principles of handling

6.1 Principles of treatment Out of contact, available B vitamins, energy mixture, and supplemented by physical therapy, physical therapy and symptomatic treatment. Available complexing agent Two mercapto succinic acid. Severe poisoning should also strengthen supportive therapy. 6.2 Other treatments 6.2.1 Observe objects Should be temporarily transferred from the thallium operating environment, six months after the review of urine thallium, as much as possible nerve - EMG examination. Urinary thallium decreased, Can restore the original work. 6.2.2 mild poisoning Patients with mild poisoning after treatment recovery should be transferred from the thallium operation, but can engage in other work, and regular review. 6.2.3 severe poisoning Should be transferred from thallium and other harmful operations on the nervous system, after treatment, according to the results of the examination arrangements for rest or work. need To identify the degree of occupational disability, according to GB/T 16180 treatment. 7. Correctly use the instructions in this standard See Appendix A (informative).

Appendix A

(Informative) Correctly use the instructions in this standard A.1 survey found that occupational exposure to thallium increased opportunities, onset insidious, disabling serious, it is necessary to develop a slow career Sex thallium poisoning diagnostic criteria, but also conducive to the growing number of active thallium poisoning diagnosis. Clinical manifestations of chronic thallium poisoning Points are peripheral neuropathy, optic neuropathy, retinopathy and hair loss. A small number of toxic encephalopathy or toxic psychosis may occur. A.2 chronic thallium poisoning caused by peripheral neuropathy and other toxic peripheral neuropathy clinical manifestations are similar, which is characterized by Early to the lower limbs, especially the heel, plantar hyperalgesia is more prominent. A.3 optic neuropathy and retinopathy is one of the important clinical manifestations of thallium poisoning, although the incidence is not very high, but the onset of insidious, Disability serious, initially only decreased vision and not for the patient's attention, should be closely observed, regular vision and visual field examination. Early manifestations of binocular vision decreased and can not be corrected, the surrounding visual field defects, there are central dark spots or next to the central dark spots, retinal water Swelling, exudation, etc.. severe optic nerve atrophy. A.4 hair loss is a common clinical manifestation of thallium poisoning. Which is characterized by a bundle of hair off, short period of time can be bald or spot Bald, often with eyebrows, beard, armpit hair and pubic hair can also fall off or easy to pull, the prognosis is better. Poisoning patients are not appear off Hair, hair loss are not all other symptoms of poisoning. But simply hair loss, it is difficult with other causes due to hair loss phase identification, diagnosis The increase in urinary thallium is difficult to prove. A.5 urinary thallium normal reference value and measurement methods have not yet unified, standardization of methods and quality control is still a problem. the study Showing that urinary thallium can be elevated, most of the poisoning patients have significantly increased the performance of urinary thallium. Is the initial definition of urine thallium 5μg / L (Atomic Absorption Spectrometry) is the upper limit of the normal value, that is, during the biological monitoring of the contact person, the urinary thallium determination is generally Excessive exposure to indicators, urinary thallium higher than 5μg/L should be listed as the object of observation. Urinary thallium determination is also an important reference for the identification of etiology Standard A.6 hidden contact with the occurrence of poisoning cases, the diagnosis is more difficult. Should be closely observed, and repeated review of urine thallium, to clear diagnosis Off. A.7 chronic thallium poisoning without special treatment. Can be used orally disulfide butanedion, the symptoms may have improved. But its exact effect, But also to be further summarized after the evaluation.

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