PMED 130- FISDAP TRAUMA UNIT STUDY GUIDE

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PMED 130- FISDAP TRAUMA UNIT STUDY GUIDE TOBY ● Physiologic compensation for hemorrhage (p. 1585) Hemorrhage means bleeding Arterial bleeding is bright red (high oxygen content) ■ More diffi... cult to control bleeding Venous bleeding is dark red (low oxygen content) ■ Tends to clot spontaneously Significant vital sign changes occur after an adult loses 1L of blood or more ■ Increased heart rate, respiratory rate, and decreased BP HEMOSTASIS: Platelets aggregate to the site, plugging the hole and sealing the injured portions of the vessel; 3 steps ■ Step 1: vasoconstriction ■ Step 2: platelet aggregation ■ Step 3: fibrinogen weaving into the clot and forming fibrin to hold the clot together ● Occlusive dressings (p. 1622) Neck dressing: prevents pulmonary emboli Truncal (chest) dressing: cover open wounds with an occlusive dressing and tape on 3 sides ■ GSW, stabbing ■ hemo/pneumo-thorax CONTINUED.................. [Show More]

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