Lymphedema exam with complete solutions

Lymphedema exam with complete solutions What is the #1 worldwide cause of lymphedema? - ANS ️️ filariasis (mosquito- born parasite found in tropical regions of the world) In the United States, what is the primary cause of lymphedema? - ANS ️️ Cancer Treatment: Lymphadenectomy/Radiation List and describe the 2 main types of lymphedema. - ANS ️️ Primary - Result of lymphatic dysplasia Congenital: onset birth to 2 years Precox: Onset under age of 35 Tarda: Onset after age 35 Secondary - The result of a known cause: cancer treatment, surgery etc... More common than Primary At what ABl is compression therapy not appropriate? - ANS ️️ ABI <0.5 compression therapy is not recommended. No compression over peripheral stents. List and describe the 4 types of lymphatic vessels. - ANS ️️ Capillary: larger & more permeable than blood capillaries structurally designed to absorb large molecules (proteins) End blindly in the tissue space (versus blood capillary that has a venous end and an arterial end) Has an extensive network throughout the body Wall made up of flat endothelial cells, overlap Overlapping ends open & close as needed for absorption "Swinging flaps" Design permits easy flow in, but inhibits flow out Anchoring filaments: attach endothelial cells to surrounding tissue Increase of interstitial fluid= a pull on anchoring filaments & opens swinging flaps allowing for & influx of lymph fluid Doesn't contain one-way valves Precollector: channels the absorbed lymph into larger transporting vessels a transitional vessel: Absorbs Transports Contains smooth muscle & valves= inconsistent Collectors: primary function is transportation cell wall = continuous, not able to absorb Has valves, fluid flow is now unidirectional (every .6-2cm) Vessel has 3 layers Tunica intima: inner, endothelial cells & basal membrane Tunica media: middle layer smooth muscle Tunica externa: outer layer, soft collagenous connective tissue Superficial collectors In subcutaneous fat Drain the skin & subcutis Deep collecto