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.

Laryngitis


Related Terms

  • Acute Laryngitis
  • Chronic Laryngitis
  • Edematous Laryngitis
  • Septic Laryngitis
  • Suppurative Laryngitis

Differential Diagnosis

  • Allergy
  • Epiglottitis
  • Exposure to inhaled environmental toxins or irritants
  • Malignant or benign tumor of larynx or neck
  • Paralysis of vocal cord(s)
  • Trauma
  • Vocal cord polyps

Specialists

  • Otolaryngologist

Comorbid Conditions

Factors Influencing Duration

Situations resulting in persistent overuse or misuse of the voice may aggravate and prolong symptoms. Smoking may increase the duration of laryngitis.

Medical Codes

ICD-9-CM:
464.00 - Acute Laryngitis without Mention of Obstruction
464.01 - Acute Laryngitis with Obstruction

Overview

Laryngitis is an inflammation or infection of the voice box (larynx) that causes swelling of the vocal cords. Laryngitis is characterized by hoarseness and a loss of voice and may also cause pain in the laryngeal area during swallowing or speaking. Laryngitis may last only a few days (acute) or persist over a long period (chronic).

Acute laryngitis is most often caused by viral or bacterial infections in the upper tract. It may occur along with a common cold, bronchitis, flu, or pneumonia. Chronic laryngitis is most commonly caused by overuse or misuse of the voice (singing, screaming); chronic irritation by smoke, dust, or other airborne substances; excessive alcohol consumption; postnasal drainage; or the reflux of acid from the stomach. Less commonly, laryngitis may result from direct trauma, or more serious conditions such as laryngeal polyps, a benign or malignant tumor, or laryngeal paralysis.

Incidence and Prevalence: Laryngitis is equally prevalent in men and women and can affect individuals of any age.

Source: Medical Disability Advisor



Diagnosis

History: Individuals may report hoarseness or loss of voice, soreness when clearing the throat or swallowing, and a dry, irritated cough. Fever may or may not be present.

Physical exam: The physician visually inspects the larynx using a mirror held against the back of the roof of the mouth. A viewing instrument (laryngoscope) may be passed down the throat in order to view the larynx directly (laryngoscopy) or to take a biopsy.

Tests: Tests are not required for the diagnosis of laryngitis. However, a throat culture may be taken to identify organisms responsible for a bacterial infection.

Source: Medical Disability Advisor



Treatment

Laryngitis is most often treated by resting the voice as much as possible, increasing fluid intake, using a humidifier, and avoiding common irritants (e.g., cigarette smoke and alcohol). Over-the-counter analgesics or throat lozenges may be used if soreness or throat pain is present. Antibiotics are prescribed only if a bacterial infection is present. Chronic laryngitis is treated differently depending on the cause. Symptoms persisting for longer than 2 weeks without relief from common treatment methods or hoarseness accompanied by a lump in the neck or blood-tinged sputum require further diagnostic evaluation.

Source: Medical Disability Advisor



Prognosis

Full recovery is expected.

Source: Medical Disability Advisor



Complications

Rarely, severe respiratory distress develops that requires immediate medical intervention. Persistent laryngitis (more than 2 weeks) may be a symptom of a more serious underlying condition, such as a tumor or cancer in the neck, larynx, or vocal cords.

Source: Medical Disability Advisor



Ability to Work (Return to Work Considerations)

The voice should be rested as much as possible. Inhaled irritants (such as smoke, dust, or pollution) and extremely cold air should be avoided.

Source: Medical Disability Advisor



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:

  • Was diagnosis of underlying condition, such as common cold, influenza, pneumonia, bronchitis, malignant tumor or polyps on the vocal cords, paralysis of the vocal cords, allergies, or trauma, confirmed?
  • Has a throat culture been performed to identify the causative agent?
  • In the case of persistent laryngitis (more than 2 weeks), was laryngoscopy and / or biopsy performed to rule out benign or malignant tumors?

Regarding treatment:

  • Is individual receiving appropriate treatment for an underlying viral or bacterial infection? Has individual complied with prescribed treatment?
  • Have symptoms persisted longer than 2 weeks?
  • Has a laryngoscopy and / or biopsy been performed to rule out benign or malignant tumors?
  • Once identified, is underlying condition receiving appropriate treatment?

Regarding prognosis:

  • How long has laryngitis been present?
  • Has a laryngoscopy and / or biopsy been performed to rule out benign or malignant tumors?
  • Is the underlying condition responding to treatment?

Source: Medical Disability Advisor



References

General

Mayo Clinic Staff. "Laryngitis." MayoClinic.com. 25 Oct. 2004. Mayo Foundation for Medical Education and Research. 20 May 2005 <http://www.mayoclinic.com/invoke.cfm?id=DS00366>.

Source: Medical Disability Advisor






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