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.

Pregnancy, Normal


Related Terms

  • Conception
  • Gestation
  • Parturition

Specialists

  • Family Physician
  • Obstetrician/Gynecologist

Comorbid Conditions

Factors Influencing Duration

Factors influencing length of duration include mother's age at delivery, pre-existing conditions, and the presence of complications during delivery.

Medical Codes

ICD-9-CM:
650 - Pregnancy, Normal Delivery in a Completely Normal Case
V22.0 - Supervision of Normal First Pregnancy
V22.1 - Supervision of Other Normal Pregnancy

References

Cited

ACOG. "Group B Streptococcus and Pregnancy." American Congress of Obstetricians and Gynecologists (ACOG). 2003. 23 Dec. 2008 <http://www.acog.org/publications/patient_education/bp105.cfm>.

Artal, R. , M. O'Toole, and S. White. "Guidelines of the American College of Obstetricians and Gynecologists for Exercise During Pregnancy and the Postpartum Period." British Journal of Sports Medicine 37 1 (2003): 6-12.

Bonzini, M. , D. Coggon, and K. T. Palmer. "Risk of Prematurity, Low Birthweight and Pre-Eclampsia In Relation to Working Hours and Physical Activities: A Systematic Review." Occupational and Environmental Medicine 228-243.

Davies, G. A. , et al. "Exercise in Pregnancy and the Postpartum Period." Journal of Obstetrics and Gynaecology Canada (JOGC) 25 6 (2003): 516-529.

Duff, Patrick. "Maternal and Perinatal Infection - Bacterial." Obstetrics: Normal and Problem Pregnancies. Eds. Steven G. Gabbe, Jennifer R. Niebyl, and Joe L. Simpson. 5th ed. New York: Churchill Livingstone Elsevier, 2007.

Gabbe, Steven G., et al., eds. Obstetrics - Normal and Problem Pregnancies. 5th ed. New York: Churchill Livingstone, Inc., 2007.

Mozurkewich, Ellen L. , et al. "Working Conditions and Adverse Pregnancy Outcome: A Meta-Analysis." Obstetrics and Gynecology 95 4 (2000): 623-635.

Sibai, Baha M. "Hypertension." Obstetrics: Normal and Problem Pregnancies. Eds. Steven G. Gabbe, Jennifer R. Niebyl, and Joe L. Simpson. 5th ed. New York: Churchill Livingstone Elsevier, 2007.

General

Haywood, Brown L. "Normal Pregnancy." The Merck Manual of Home Health Care. Ed. Robert S. Porter. Online ed. Whitehouse Station: Merck Research Laboratories, 2007.

Porter, Robert S., ed. "Prenatal Diagnostic Testing." The Merck Manual of Home Health Care. Online ed. Whitehouse Station: Merck Research Laboratories, 2007.

Simpson, Joe L., and Lucas Otano. "Prenatal Genetic Diagnosis." Obstetrics: Normal and Problem Pregnancies. Eds. Steven G. Gabbe, Jennifer R. Niebyl, and Joe L. Simpson. 5th ed. New York: Churchill Livingstone Elsevier, 2007.

Trupin, Suzanne R. "Common Pregnancy Complaints and Questions." eMedicine. Eds. Andrea Witlin, et al. 27 Oct. 2004. Medscape. 3 Nov. 2008 <http://emedicine.com/med/topic3238.htm>.

Source: Medical Disability Advisor


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