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.

Syncope


Related Terms

  • Blackout
  • Fainting
  • Transient Loss of Consciousness

Differential Diagnosis

Comorbid Conditions

Factors Influencing Duration

If syncope is due to an underlying cause, the specific diagnosis may influence the length of disability. An individual's job requirements may also determine the length or degree of disability. Age and mental health of the individual may also influence the length of disability.

Medical Codes

ICD-9-CM:
780.2 - Syncope and Collapse; Blackout, Fainting; (Near) (Pre)syncope; Vasovagal Attack

Overview

Syncope, or fainting, is a temporary loss of consciousness due to inadequate blood flow to the brain.

There are many causes for syncope, including fatigue, pain, dehydration, prolonged or excessive heat exposure (heat exhaustion), low blood sugar (hypoglycemia), diabetes, Parkinson's disease, anemia, emotional disturbances, hyperventilation, exertion, or being in a poorly ventilated room without adequate oxygen. Syncope can be caused by standing still for a long time or by standing up suddenly after sitting or lying down for a long time (postural or orthostatic syncope). This happens because the blood has pooled in the leg veins, reducing the amount available for the heart to pump to the brain. The resultant drop in blood pressure (postural hypotension) is common in the elderly, in diabetics, and in individuals who take certain cardiac medication (antihypertensive or vasodilator).

Feeling faint, or fainting, is a common occurrence during pregnancy, when muscles surrounding the blood vessels relax, often lowering the blood pressure.

Another common cause of syncope is overstimulation of the vagus nerve (vasovagal attack). The vagus nerve helps to control breathing and blood circulation. Overstimulation may occur because of severe pain, stress, fear, prolonged coughing, straining to urinate or defecate, or blowing into a wind instrument.

Serious heart disease, such as blood clots in the valves or a heart tumor, can obstruct blood flow in the heart, causing syncope. Another cause of syncope is irregular heartbeat (arrhythmia).

Vertebrobasilar insufficiency is a disorder that can temporarily obstruct the blood flowing through the neck to the brain, causing a transient ischemic attack. Syncope can also be caused by a blocked or burst blood vessel (stroke). Pressure on blood vessels caused by osteoarthritis of the bones in the neck can cause a feeling of faintness when the head is suddenly turned.

Syncope can be a symptom of Stokes-Adams syndrome. In this disorder, blood flow to the brain becomes temporarily inadequate due to an irregular heartbeat (arrhythmia). Interruption of the electrical impulses in the heart (heart block) usually causes the irregular heartbeat.

Syncope is a major cause of morbidity and mortality in older individuals.

Incidence and Prevalence: Syncope is a common condition, accounting for 3% of emergency department visits and up to 6% of admissions each year in the US. The Framingham study showed that over a 26-year period, approximately 3% of the US population had one syncopal episode. Thirty percent of these patients will experience another syncopal episode (Morag).

Source: Medical Disability Advisor






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