Sedentary Work Exerting up to 10 pounds (4.5 kg) of force occasionally and/or a negligible amount of force frequently or constantly to lift, carry, push, pull, or otherwise move objects, including the human body. Sedentary work involves sitting most of the time, but may involve walking or standing for brief periods of time. Jobs are sedentary if walking and standing are required only occasionally and other sedentary criteria are met.

Light Work Exerting up to 20 pounds (9.1 kg) of force occasionally and/or up to 10 pounds (4.5 kg) of force frequently, and/or negligible amount of force constantly to move objects. Physical demand requirements are in excess of those for Sedentary Work. Light Work usually requires walking or standing to a significant degree. However, if the use of the arm and/or leg controls requires exertion of forces greater than that for Sedentary Work and the worker sits most the time, the job is rated Light Work.

Medium Work Exerting up to 50 (22.7 kg) pounds of force occasionally, and/or up to 25 pounds (11.3 kg) of force frequently, and/or up to 10 pounds (4.5 kg) of forces constantly to move objects.

Heavy Work Exerting up to 100 pounds (45.4 kg) of force occasionally, and/or up to 50 pounds (22.7 kg) of force frequently, and/or in excess of 20 pounds (9.1 kg) of force constantly to move objects.

Very Heavy Work Exerting in excess of 100 pounds (45.4 kg) of force occasionally, and/or in excess of 50 pounds (22.7 kg) of force frequently, and/or in excess of 20 pounds (9.1 kg) of force constantly to move objects.

Job Classification

In most duration tables, five job classifications are displayed. These job classifications are based on the amount of physical effort required to perform the work. The classifications correspond to the Strength Factor classifications described in the United States Department of Labor's Dictionary of Occupational Titles. The following definitions are quoted directly from that publication.

Sedentary Work Exerting up to 10 pounds (4.5 kg) of force occasionally and/or a negligible amount of force frequently or constantly to lift, carry, push, pull, or otherwise move objects, including the human body. Sedentary work involves sitting most of the time, but may involve walking or standing for brief periods of time. Jobs are sedentary if walking and standing are required only occasionally and other sedentary criteria are met.

Light Work Exerting up to 20 pounds (9.1 kg) of force occasionally and/or up to 10 pounds (4.5 kg) of force frequently, and/or negligible amount of force constantly to move objects. Physical demand requirements are in excess of those for Sedentary Work. Light Work usually requires walking or standing to a significant degree. However, if the use of the arm and/or leg controls requires exertion of forces greater than that for Sedentary Work and the worker sits most the time, the job is rated Light Work.

Medium Work Exerting up to 50 (22.7 kg) pounds of force occasionally, and/or up to 25 pounds (11.3 kg) of force frequently, and/or up to 10 pounds (4.5 kg) of forces constantly to move objects.

Heavy Work Exerting up to 100 pounds (45.4 kg) of force occasionally, and/or up to 50 pounds (22.7 kg) of force frequently, and/or in excess of 20 pounds (9.1 kg) of force constantly to move objects.

Very Heavy Work Exerting in excess of 100 pounds (45.4 kg) of force occasionally, and/or in excess of 50 pounds (22.7 kg) of force frequently, and/or in excess of 20 pounds (9.1 kg) of force constantly to move objects.

Toxic Effects, Organophosphate and Carbamate Pesticides


Related Terms

  • Carbaryl Exposure
  • Dichlorvos Exposure
  • Malathion Exposure
  • Parathion Exposure
  • Phorate Exposure
  • Phosdrin Exposure

Differential Diagnosis

Specialists

  • Medical Toxicologist
  • Pharmacologist
  • Preventive Medicine Specialist

Factors Influencing Duration

Absorbed dose is the primary determinant of the severity of toxic effects and therefore the severity and duration of disability. Absorbed dose depends on environmental levels, routes of exposure (skin contact, inhalation, ingestion), and duration of exposure.
The period of observation can vary from several hours for the asymptomatic individual to at least 48 hours of hospitalization in symptomatic cases. Recovery periods can vary from a few days to almost a year.
Other factors influencing disability include pre-existing disease, age, pregnancy, and allergy, all of which affect individual susceptibility to the toxic effect of chemical exposures and the individual's ability to recover functional capacity and return to work. Psychological and emotional factors may also play a role in the extent and duration of disability.

Medical Codes

ICD-9-CM:
989.3 - Toxic Effects, Organophosphate and Carbamate Pesticides

Failure to Recover

If an individual fails to recover within the expected maximum duration period, the reader may wish to consider the following questions to better understand the specifics of an individual's medical case.

Regarding diagnosis:

  • Has diagnosis of toxic effects of organophosphate and carbamate pesticides been confirmed?
  • Is there a history of organophosphate or carbamate exposure in the workplace?
  • Is the clinical illness, including history, physical examination, and laboratory findings, consistent with other case descriptions?
  • Are the whole blood and urine levels of the organophosphate or carbamate metabolites and cholinesterase at or near the normal value?
  • Is the timing between exposure and clinical onset compatible with the known biologic facts about the hazard?
  • Is the exposure dose within the range of doses believed to cause such effects?
  • Has individual experienced any complications related to the toxic effects of organophosphate and carbamate pesticides?
  • Is individual pregnant, or are there special attributes of the particular individual that make it more or less likely that he or she would be more affected by the toxins?

Regarding treatment:

  • Were diagnosis and treatment prompt and adequate?
  • Have symptoms resolved?

Regarding prognosis:

  • To what extent is function impaired?
  • Has individual recently worked in another organization where organophosphate or carbamate exposure is higher?
  • Could organophosphate or carbamate exposure be occurring outside the workplace; i.e., in the home, in the community, or in recreational activities?
  • Are there additional lifestyle or behavioral factors that may potentially contribute to this condition?

Source: Medical Disability Advisor






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