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Chapter 2
Unit 1: Foundations of nursing care for adults
| Question | Answer |
|---|---|
| "Triage" | Client with the highest acuity needs recieves the quickest tx |
| Triage framework | Emergent, Urgent, Nonurgent |
| Emergent (part of triage) | Life- or limb-threatening situation |
| Urgent (part of triage) | Client should be treated soon, but that the risk posed is not life-threatening |
| Nonurgent (part of triage) | Generally can wait for an extended length of time without serious deterioration |
| Triage under mass casualty conditions | Military form that is implemented w a focus of achieving the greatest good for the greatest # of people |
| Emergent (class 1) | Red tag; immediate threat to life |
| Urgent (class 2) | Yellow tag; major injuries requiring immediate tx |
| Non urgent (class 3) | Green tag; minor injuries, no immediate tx |
| Expectant (class 4) | Black tag; expected/alllowed to die |
| Primary Survey | Rapid assessment of life-threatening conditions, no longer than 60 secs to perform |
| What guides the primary survey? | ABCDE |
| ABCDE stands for? | Airway/cervical spine, Breathing, Circulation, Disability. Exposure |
| Airway/cervical spine | If client is awake/responsive; airway is open. If loses airway; inspect mouth for foreign objects, blood, teeth, etc. If client is unresponsive w/o trauma suspicion; head-tilt, chin-lift maneuver |
| Head-tilt, chin-lift, why? | Most effective way to open client's airway. Do NOT perform if suspected cervical spine injury 1 hand on forehead, other on chin; tilt head while lifting chin This lifts the tongue out of the laryngopharynx= patent airway |
| If client unresponsive w trauma suspicion, how do you open airway? | Modified jaw thrust maneuver |
| How do you do the modified jaw thrust manuever? | Both hands on either side of client's head, find connection between maxilla and mandible, lift jaw superiorly while maintaining alignment of the cervical spine |
| How do you clear the airway of obstructions manually? | Finger-sweep method; vomit/teeth/blood/foreign object |
| Breathing | Assess once a patent airway is achieved -LS -Observe chest movement/effort -Rate/depth of respirations -Chest trauma? -Trachea position -JVD |
| If breathing is not present/ inadequate? | Bag valve mask.. or CPR until one is found |
| Circulation | HR, BP, perfusion -precursors to shock |
| Interventions to achieve circulation | -CPR -Assess for external bleeding; pressure to visible bleeding site, apply a tourniquet distal to a traumatic amputation -IV assess; large bore both AC's, isotonic fluids/blood |
| Inadequate circulation can cause | Shock; hypotension, tachycardia, eventual tissue ischemia + necrosis |
| Interventions for shock | O2, pressuring to bleeding, elevate feet, IV fluids/blood, VS, support. |
| Disability | Determines client's LOC |
| What is a good method to determine disability/LOC? | AVPU; alert, response to voice, response to pain, unresponsive |
| Glasgow coma scale | Eye opening, verbal response, motor response -3-15 (low is bad) |
| Exposure | Remove client's clothing, always removed for a resuscitation attempt -Hypothermia is a concern; vasoconstriction & impaired O2 |
| To prevent hypothermia | -Remove wet clothing -cover w/ blankets, heat lamp -^ room temp -warm IV fluids |
| Poisoning | Exposure to a toxic agent |
| Interventions to manage exposure to or ingestion of a toxic substance | -o2, ventilation, ect. -monitor circulation -IV fluids -VS -assess tissue edema q15-30 for snake bites/spider -opioids for pain -ABGs, BG, coagulation -Valium IV if seizures -Reverse heroin/toxicity w. narcan -dialysis |
| Rapid response team; pg. 13 | Respond to emergency situations; respiratory/cardiac arrest, stroke -SBAR |
| Cardiac emergency; 1. Cardiac arrest | Sudden cesation of cardiac function usually caused by ventricular fibrillation or asystole |
| What is ventricular fibrilation? (VF) | Fluttering of ventricles causing loss of consciousness, pulselessness, & no breathing -Need defibrillation |
| Pulseless ventricular tachycardia (VT) | Irritable firing of ectopic ventricular beats at a rate of 140-180/min -Will become unconscious overtime and deteriorate in VF |
| Ventricular Asystole | Complete absence of electrical activity & ventricular movement of the heart -Complete cardiac arrest |
| Pulseless electrical activity (PEA) | A rhythm that appears to have electrical activity but is not sufficient to stimulate effective cardiac contractions |
| What is BLS? (pg. 14) | Basic life support; involves hands on approach to assess/manage airway, breathing, circulation |
| What is ACLS? | Advanced cardiac life support; builds on BLS assessment/management -cardiac monitoring -invasive airway management -electrical (defib) -IV access, etc. |
| What is PALS? | Pediatric advanced life support; builds on BLS for neonatal & pediatric assessment/management |
| Administer IV antidysrhythmic meds according to ACLS guidelines; (pg.14) | Epi 1 mg IV push q3-5 min OR Vasopressin 40 units IV x1 only (switch to epi if no response) |
| Post resuscitation; pharmacological management (pg. 16) | IV meds that cause a catecholamine adrenergic agonist effect -cannot be taken by the oral route; can't cross the BBB, short duration of action |
| Examples of catecholamines | Epinephrine, dopamine, dobutamine |
| Receptors; Alpha 1 | Activation of receptors in arterioles of skin, viscera & mucous membranes, & veins lead to vasoconstriction |
| Beta 1 receptors | Heart stimulation -^ HR -^ myocardial contractility -^ rate of conduction through AV node -release of renin d/t activation of kidney receptors |
| Beta 2 receptors | Activate receptors in arterioles of the heart, lungs, skeletal muscles = vasodilation -bronchial stimulation = bronchodilation -uterine smooth muscle= relax uterus -liver= glycogenolysis -Skeletal muscle receptors; muscle contraction |
| Dopamine receptors | Activation of receptors in the kidney= renal blood vessels dilate |
| Epinephrine acts on which receptors? | Alpha 1, beta 1, beta 2; good for emergencies.. like cardiac arrest |
| Dopamine (Intropin) which receptors? | Dopamine, Beta1, Alpha 1 |
| Dobutamine (Dobutrex) which receptors? | Beta1 |
| Adverse effects of Epi (pg. 18) | -vasoconstriction can lead to htn crisis -beta 1 can cause dysrthythmias, possible angina |
| Adverse effects of Dopamine | -beta 1; dysrhythmias & angina -high doses = extravasation.. necrosis |
| Dobutamine adverse effects | Increased HR |
| Pregnancy risk category __ for dpi, dopa and dobutamine | C |
| How do tricyclic antidepressants effect EPI? | Block the uptake of epi = which prolongs and intensifies effects -might need lower dose |
| How do MAOIS effect EPI? | prolong and intensify epi; avoid use of MAOIs |
| Extravasation can be tx w/ ? | Local injection of an alpha-adrenergic blocking agent; phentolamine |