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.

Renovascular Hypertension


Related Terms

  • Chronic Renal Artery Stenosis
  • Renal High Blood Pressure
  • Renal Vascular Hypertension

Differential Diagnosis

Specialists

  • Cardiovascular Internist
  • Nephrologist

Comorbid Conditions

Factors Influencing Duration

Factors include the individual's age, lifestyle modifications, the extent of renovascular damage and systemic vascular disease, presence of bilateral disease, the specific treatments instituted (medical or surgical), the individual's response to treatment, and the development of complications.

Medical Codes

ICD-9-CM:
405.01 - Renovascular Hypertension, Secondary, Malignant
405.11 - Renovascular Hypertension, Secondary, Benign
405.91 - Hypertension, Renovascular, Secondary, Unspecified

Treatment

Renovascular hypertension is treated with drugs, surgical revascularization, or angioplasty. In both surgical revascularization and angioplasty, adequate blood supply to the affected kidney is restored. The type of treatment selected depends on the cause of the hypertension and the individual's risk factors regarding surgery. Generally, however, returning adequate blood supply by revascularization or angioplasty is preferred to medication.

Surgical revascularization involves removing the narrowed portion of artery and replacing it with a healthy section of a blood vessel removed from another body site. Angioplasty involves the insertion of a catheter into the affected renal artery. On the end of the catheter is a deflated balloon. When the catheter reaches the narrowed portion of the artery, the balloon is inflated. This action opens up the artery. A hollow tube called a stent is usually inserted into the widened artery to help keep it open.

Advanced kidney disease due to low oxygen supply (ischemic nephropathy) is treated either with surgical revascularization or angioplasty.

Renovascular hypertension caused by atherosclerosis is less effectively treated by surgical revascularization or angioplasty, because such individuals may have hypertension unrelated to renovascular disease (essential hypertension). In such cases, atherosclerosis present in other vessels may likely return to the renal arteries. Similarly, clumps (emboli) of cholesterol may be released during the surgery and may subsequently block a vessel.

Individuals with atherosclerosis and those who are poor candidates for revascularization or angioplasty receive ongoing drug therapy using angiotensin-converting enzyme (ACE) inhibitors and calcium channel blockers. Smokers are advised to quit.

Long-term drug therapy is used for individuals who are not good candidates for surgery or angioplasty. Renovascular hypertension, however, is difficult to control with drug therapy. In some individuals, kidney function continues to decline in spite of drug therapy. ACE inhibitors also may cause a deterioration in kidney function. Individuals taking an ACE inhibitor should be monitored closely.

Source: Medical Disability Advisor






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