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3 Cards in this Set
- Front
- Back
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what is epistaxis? what are the predisposing factors?
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bleeding from the nose. predisposing factors: trauma, nose picking, sinus infection, allergic or atrophic rhinitis, blood dyscrasias, tumor, environmental extremes (hot, dry climats, winters)
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what is the usual cause of epistaxis?
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rupture of superficial mucosal blood vessels (kiesselbach's plexus if anterior, sphenopalatine artery if posterior)
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what is the most common type of epistaxis? what type is most serious?
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anterior (90% of all epistaxis) is most common, usually the result of trauma. posterior is more serious, usually occurs in the elderly or is assoc. w/a systemic d/o (HTN, tumor, arteriosclerosis)
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