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.

Transient Ischemic Attack


Related Terms

  • Intermittent Cerebral Ischemia
  • Mini-stroke
  • TIA
  • Transient Cerebral Ischemia

Differential Diagnosis

Specialists

  • Cardiovascular Internist
  • Neurologist
  • Radiologist
  • Vascular Surgeon

Factors Influencing Duration

Factors that may influence the length of disability include the underlying chronic disease processes, the age of the individual at diagnosis, effectiveness of treatment, and whether surgery is indicated.

Medical Codes

ICD-9-CM:
435.0 - Basilar Artery Syndrome
435.1 - Vertebral Artery Syndrome
435.2 - Subclavian Steal Syndrome
435.3 - Vertebrobasilar Artery Syndrome
435.9 - Unspecified Transient Cerebral Ischemia; Impending Cerebrovascular Accident; Intermittent Cerebral Ischemia; Transient Ischemic Attack [TIA]

Causation and Known Risk Factors

A family history of stroke and certain lifestyle choices, (e.g., smoking, heavy alcohol use) increase risk of TIA. The age at onset varies, but incidence increases with age. TIAs are significantly more common in men (101 per 100,000) than women (70 per 100,000); incidence among blacks is 98 per 100,000 and among whites is 81 per 100,000 (Kleindorfer). Risk is greater for individuals with diabetes, heart disease, coronary artery disease, hypertension, migraine headaches, sedentarism, dyslipidemia, and obesity (von Sarnowski).

TIAs typically are associated with high blood pressure (hypertension) and atherosclerosis, a disease in which fatty deposits (atheromatous plaque) build up along the interior walls of arteries. Plaque deposits may become large enough to temporarily block blood flow, or may promote the formation of blood clots (thrombi) that may then occlude that artery or may become dislodged (embolism), occluding an artery downstream. Less common causes of TIA include blood disorders (e.g., sickle cell disease, polycythemia, hyperviscosity syndromes), spasms of small arteries in the brain, blood vessel abnormalities (e.g., fibromuscular dysplasia), inflammation of the arteries, systemic lupus erythematosus (SLE), and syphilis.

Source: Medical Disability Advisor






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