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.

Heat Exhaustion


Related Terms

  • Heat Prostration

Differential Diagnosis

  • Drug-induced fluid loss
  • Fever from infection
  • Heatstroke
  • Hypothalamic infarct
  • Malignant hyperthermia

Specialists

  • Emergency Medicine Physician
  • Internal Medicine Physician

Comorbid Conditions

Factors Influencing Duration

The severity of the heat exhaustion, certain pre-existing medical conditions, work conditions (ambient temperature), and the individual's job requirements influence the length of disability.

Medical Codes

ICD-9-CM:
992.3 - Effects of Heat and Light, Heat Exhaustion, Anhydrotic; Heat Prostration Due to Water Depletion
992.4 - Effects of Heat and Light, Heat Exhaustion Due to Salt Depletion
992.5 - Effects of Heat and Light, Heat Exhaustion, Unspecified; Heat Prostration NOS

Treatment

Therapy consists of moving the individual to cooler surroundings and providing rest and rehydration with fluids containing sodium and potassium. Ideally, the individual should be treated at an emergency department or urgent care clinic. If such a facility is not available, administration of sports drinks and even soda drinks can help replace fluids. Fluid replacement should be given slowly and continued for at least 6 to 9 hours or until adequate hydration is achieved. Blood pressure, pulse, temperature, and urine output are monitored to assess the severity of illness and guide fluid replacement. In severe cases, hospitalization is required for administration of intravenous fluids. Cool washcloths or ice packs may be placed on the neck, groin, or armpits to hasten cooling. Rest and fluid replacement should continue for at least 24 hours.

Source: Medical Disability Advisor






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