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.

Tetany


Related Terms

  • Carpopedal Spasm
  • Muscle Cramps
  • Muscle Spasm
  • Parathyroid Tetany

Differential Diagnosis

Specialists

  • Emergency Medicine Physician
  • Endocrinologist
  • Internal Medicine Physician
  • Neurologist

Comorbid Conditions

Factors Influencing Duration

Treatment of this condition in conjunction with pregnancy, metabolic diseases, alcoholism, or malignancy will lengthen the disability period. Emotional components, impaired mobility, and circulatory or respiratory problems will also extend the diagnosis and treatment phases.

Medical Codes

ICD-9-CM:
781.7 - Symptoms Involving Nervous and Musculoskeletal Systems; Tetany; Carpopedal Spasm

Treatment

The goal of treatment is to restore the calcium and associated mineral balance within the body. Since tetany is a manifestation of low calcium levels, treatment consists of replacing calcium. Intravenous calcium is given initially to promptly restore the calcium levels. The underlying cause of the calcium deficiency must be determined to guide the ongoing treatment. Administration of oral calcium plus vitamin D, which is necessary for absorption of calcium into the bones, may be needed for long-term control of this condition.

Surgical removal of the parathyroid tumors (parathyroidectomy) to treat hyperparathyroidism can infrequently result in acute dysfunction of the remaining parathyroid glands, causing acute hypoparathyroidism and sudden, severe hypocalcemia. The sudden, extreme hypocalcemia can cause life-threatening tetany and possibly airway obstruction. In these (infrequent) cases, immediate treatment with intravenous calcium and careful monitoring of heart function and airway status are required.

Source: Medical Disability Advisor






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