Alterations in Blood Flow-patho

And organization of the circulatory and lymphatic

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Unformatted text preview: ing Returns blood proteins per day. blood Located primarily in subcutaneous tissues Located and submucosa. and Organization of the Circulatory and Lymphatic Systems and Lymphatic Structure Thin walled and resemble veins. Range in size from capillaries to vessels of Range increased diameter. increased Intermittent valves that extend into lumen. Capillary walls contain contractile fibers Capillary that propel lymph along the vessel. that Lymphatic Network Lymphatic Lymphatic Vessels Lymphatic Changes in capillary or interstitial oncotic Changes pressure increase filtration into tissues resulting in edema. in Lymphedema- changes in the oncotic pressure (holds Lymphedemafluid in vascular compartments) fluid Lymphedema results from impairment in the Lymphedema circulation of lymph---may be associated with family history of abnormal swelling, surgery, radiation therapy, tumor growth, crush injuries, immobility, or obesity. immobility, Alterations in Lymphatic Flow Alterations Lymphedema Lymphatic vessels contain valves similar to those in veins. Lymphatic Lymphedema is an abnormal buildup of lymphatic fluid in Lymphedema the dermal and subcutaneous tissues. the Lymphatic flow is altered due to impairment in the circulation of lymph. in Changes in capillary oncotic pressures increase filtration Changes overwhelmed the lymphatic circulatory system. overwhelmed Lymphedema may be primary or secondary in etiology. Lymphedema Primary lymphedema is congenital (people can be born without some lymph nodes). Secondary lymphedema is more common caused by trauma, recurrent infections, obstructive mass, infiltrative processes, and radiation can cause lymphatic vessel damage. Upper extremity lymphedema may occur after radical or Upper modified radical mastectomy. Manifestations include regional edema and thickened Manifestations Lymphedema Example Test Questions Questions Elevation of an extremity suffering from arterial insufficiency will: insufficiency a. increase perfusion to the extremity. b. promote circulation distal to the obstruction. c. decrease perfusion to the extremity. d. relieve ischemic pain. A women who has had radiation therapy to the axillary lymph nodes may experience: experience: A. Lymphedema A. Lymphedema B. Lymphangitis C. Infection D. fever Risk factors for atherosclerosis include: include: a. female gender. b. hyperlipidemia. c. high-protein diet. d. low-fiber diet. Which of the following factors is NOT a NOT predisposing factor for arteriosclerosis? predisposing A. Diabetes B. Heredity C. Hypertension D. Anemia D. Anemia A postoperative patient develops redness and edema in the calf. There symptoms may indicate: may A. Arterial embolism B. Varicose vein C. Thrombophlebitis C. Thrombophlebitis D. Lymphedema Clinical manifestations of chronic arterial obstruction include: arterial a. edema. b. intermittent claudication. c. decreased pressure proximal to the obstruction. d. distal hyperemia. The etiology of Buerger’s disease is unknown. The ’s However, to limit blood vessel destruction in a patient with this disorder, the nurse should instruct the patient to: instruct A. Limit fluid intake B. Exercise regularly C. Elevate extremities D. Stop smoking...
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This document was uploaded on 03/25/2014.

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