1/31/2011 OBJECTIVES
Transcription
1/31/2011 OBJECTIVES
OBJECTIVES IMMEDIATE RESPONSE: • Emergencies: Patient Approach 1/31/2011 Medley O’Keefe Gatewood, MD Assistant Professor Division of Emergency Medicine University of Washington Medical Center Harborview Medical Center • • • • • • • Airway Issues Oxygen Supplementation Shock Care Acute Coronary Syndromes Cardiac Arrest The Seizing Patient Questions & Answers “Traditional” Medical Approach • History (Medical Record) • Physical Exam • “Diagnostic” “Di ti ” St Studies di • Synthesis of the above • Differential Diagnosis • Working Diagnosis • Further Diagnostic & Treatment Plans EMERGENCY / CRITICAL CARE • Primary Survey & Resuscitation • C-Spine ? A-B-C-D-E… – C-A-B-D-E… pulse check • • • • • Airway & Spinal Stabilization Breathing & Ventilation Circulation & Hemorrhage Control Disability & DON’T Regimen Exposure & Environmental Control • Secondary Survey • Definitive Care Three PILLARS for Patients in TROUBLE “Safety N et” Vital Signs O xygen IV A ccess M onitors P BP RR T O 2 sat O thers Prim ary Survey A + Spine p B +V C + Hem cntrl D + “DO N ’T” E + Env 1 OBJECTIVES • Emergencies: Patient Approach • Airway Issues • • • • • • Oxygen Supplementation Shock Care Acute Coronary Syndromes Cardiac Arrest The Seizing Patient Questions & Answers Positioning THE HUMAN AIRWAY: AIRWAY: A CONTINUUM… • Awake & Alert: No Intervention • Inadequate? – Positioning – Head Tilt / Jaw Thrust – Nasopharyngeal Airway – Oropharyngeal Airway – Bag Valve Mask Ventilation – Supraglottic Airway (LMA, etc) – Endotracheal Intubation • “Impossible?” then one of the following… – Jet Insufflation – Surgical Airway: Cricothyroidotomy > 8-12 yo Bagging a Patient: Head--Tilt Chin Lift Head • Extend the patient’s head slightly (‘sniffing position’) • Do NOT do this with C-Spine precautions • Jaw Thrust • OK to do this with C-Spine precautions ‘Head-Tilt Jaw-Thrust’ Bagging a Patient: Jaw Thrust Sizing & Placing an Oral Airway: Angle of the mandible to corner of the lips Start upside down and rotate 180° 180° mid--insertion mid 2 Sizing & Placing an Oral Airway: Sizing Nasal Trumpet(s): Measure from nare to earlobe Start upside down and rotate 180° 180° mid--insertion mid Bagging a Patient: 1 or 2 hands Bagging a Patient: 1 hand Bagging a Patient: 1 hand Bagging a Patient: 2 hands 3 Bagging a Patient: 2 hands The Bag Valve Mask Bagging a Patient: Equipment • • • • • • BVM with reservoir Oxygen connector tubing Oxygen source (turn it all the way up) Suction (check it!) Nasal pharyngeal airway (NPA = ‘trumpet’) Oral pharyngeal airway (OPA) 4 King Systems Supraglottic Airway REVIEW Questions OBJECTIVES • A patient is seizing in the room, breathing is stertorous. – Size and place the correct airway (s). • Emergencies: Patient Approach • Airway Issues • Oxygen Supplementation • A patient presents with altered mentation. A, B, and C are fine. What do you do at the “D part” of the 1° survey? BASIC OXYGEN THERAPY • • • • • • Nasal cannula Simple face masks Venturi masks Non-rebreather masks Bag-valve-mask apparatus NIPPV • • • • • Shock Care Acute Coronary Syndromes Cardiac Arrest The Seizing Patient Questions & Answers OXYGEN SATURATION GOALS • Most patients ? • Pregnant (3rd trimester) ? • COPD patients & CO2 retention ? 5 The DON’T Regimen in ALTERED MENTATION • D = Dextrose • O = Oxygen • N = Naloxone • T = Thiamine CLINICAL CASE You are working in the ED. A car drives up, unloads a woman onto the ambulance bay, y and then drives off You and your staff run out to find a woman in her early 30’s, comatose, with facial abrasions, breathing poorly, slightly cyanotic, and with a weak femoral pulse. CARE for HER Now! CLINICAL CASE: Emergency Care (continued) • IV, Labs, normal saline wide open • D = disability (comatose, pupils, symmetry) & DON’T regimen • E = expose, Temperature check, rewarm, safety • “AMPLE” History • Secondary Survey: OG Tube, Foley catheter, Head CT, ADMIT ICU CLINICAL CASE: Emergency Care • HELP! • Jaw Thrust -- Logroll--Backboard— Inside ED • “Safety “S f t Net,” N t ” Vital Vit l Si Signs • Hard collar, strapped to board, cut clothes off, warm blanket • OP Airway, Bag-Valve-Mask, ET tube, Confirm Tube, Ventilator Differential Diagnosis of ALTERED MENTAL STATUS • T = trauma, temp. • I = infection • P = psychiatric • A = alcohol, ammonia (liver failure) • E = electrolytes, y , endocrine causes • S = space occupying lesions, stroke, seizure, SAH, subdural hematoma • I = insulin • O = opioids, oxygen • (lack of) U = uremia 6 SHOCK Worksheet OBJECTIVES • Emergencies: Patient Approach • Define Shock • Airway Issues • Identify at the Bedside – CC/Hx – Vital Signs – Skin – Capillary refill – Neck veins – Urine Output – Mental Status • Oxygen Supplementation • Shock Care • • • • Acute Coronary Syndromes Cardiac Arrest The Seizing Patient Questions & Answers SHOCK Worksheet • Other Adjuncts… • EKG • pCXR • Bedside B d id ultrasound lt d – Cardiac – Pneumothorax – IVC – Free blood (in abdomen) Clinical Case: HEMORRHAGE Mr. AJ, 59-year-old. History alcohol & cigarette use. Vomiting blood, melena, postural symptoms. t Looks ill. VITAL SIGNS: P 125 bpm, BP 88/55, RR 26, T 36.0 C CARE FOR THIS MAN NOW! THE CARDIOVASCULAR TRIAD • Rate / Rhythm Problem (e.g., Afib with • rapid ventricular response, VTACH) Pump Problem – Primary Pump Problem (e (e.g., g MI MI, CHF) – Secondary Pump Problem (e.g., tension pneumothorax, tamponade, PE) • TANK PROBLEM – Pure Volume Problem (e.g., GI bleed, abdominal trauma, gastroenteritis) – Volume/Resistance problem Teaching Questions SHOCK 1. Normal saline or lactated 2. 3. 4. 5. 6. Ringer’s? When to avoid lactated Ringer s? Ringer’s? Hematocrit drop by dilution? Universal donor? Platelet counts? Coagulopathy? 7 VOLUME Resuscitation • Normal Saline • Lactated Ringer’s – Na 154 mEq/L – Cl 154 mEq/L q – Na 130 mEq/L – Cl 109 mEq/L q –K 4 mEq/L – Ca 2.7 mEq/L – Lactate 28 mEq/L 3:1 crystalloid to blood… Common PRESSORS • DOPAMINE – dopamine-receptors, beta-, alpha– Dose: 2-5 ug/kg/min, 5-10 ug/kg/min, > 10 ug/kg/min /k / i IV • NOREPINEPHRINE – alpha-, beta– Dose: 2-20 ug/min IV • Epi, Dobutamine, Neosynephrine… OBJECTIVES • Emergencies: Patient Approach Clinical Question • Airway Issues What are the RISK FACTORS for Coronary Artery Disease? • Oxygen Supplementation • Shock Care • Acute Coronary Syndromes • Cardiac Arrest • The Seizing Patient • Questions & Answers The Symptoms of Acute Myocardial Ischemia • Chest Pain / Pressure / Heaviness • Associated Symptoms • Dyspnea • Atypical Symptoms (or, how will you be “fooled?”) Question List as many LifeThreatening causes of Chest Pain as you can. 8 Life-Threatening Chest Pain • Acute coronary • • • • • • syndromes Aortic dissection Aortic stenosis (critical) Cancer Empyema Esophageal injury Tamponade • • • • • • • Mediastinitis Myocarditis Pancreatitis Pneumonia Pneumothorax Pulmonary Embolism Pulmonary hypertension The SPECTRUM of Coronary Artery Disease • Asymptomatic Atherosclerosis g • Stable Angina • Unstable Angina • Non-ST-Elevation MI • ST-Elevation MI or New LBBB MI Clinical Case Ms. HD: 60-year-old female with 3-hr of 6/10 chest pain + jaw pain + diaphoresis. Risks: age, Fam Hx, HTN. MEDS: HCTZ; ALL: NKDA EXAM: uncomfortable older woman VS: P 90, BP 160/100, RR 20, T 37.2 C Lungs: clear Heart: regular, ? S4 CARE FOR HER NOW! 9 Initial Acute CORONARY SYNDROME CARE • “Three Pillars”: • • • • • – Safety Net – Vital Signs –(C) A B C Ds ECG & Chest Radiograph (portable) Vital Sign Support (? Fluids; ? Dopamine) Differential & Working Diagnosis M O N A (B) P + Heparin (or LMWH) ? ST-Elevation MI: then PTCA or Thrombolysis WARNING: Unstable Angina! Initial Care: MEDS • M = Morphine (2-4 mg IV; repeat prn) • O = Oxygen (O2 sat > 95%) • N = Nitroglycerin (0.4 mg SL) • A = Aspirin (325 mg bite & swallow) • B = Beta Blocker (metoprolol 5 mg X3) • P = Plavix (600/300 mg po) • H = Heparin Objectives • Emergencies: Patient Approach • Airway Issues • • • • Definition ___________ Death: 5-10% Non-Fatal MI: 10-20% Most of the above within days to weeks of symptom onset • Curr Prblm Cardiol 1999;24:681-744. • Oxygen Supplementation • Shock Care • Acute Coronary Syndromes • Cardiac Arrest • The Seizing Patient • Questions & Answers Clinical Case Your 60-year-old female patient previously presented now suddenly y “rolls up” p her eyes y and loses consciousness. She is completely unresponsive. CARE FOR HER NOW! 10 The ACLS “Surveys” Primary • • • • • • • • A-B-C C-A-B!!! Call for help; get AED If alone alone, call 911 911, get AED follow prompts No AED CPR x 30 compressions Airway: assess & open (head-tilt, jaw thrust) Breathing: provide x2 Repeat 30/2 Defibrillate: when AED or Life-Pak arrives The ACLS “Surveys” Other ACLS Changes… • No cricoid pressure for lay or healthcare BLS • No more ‘look-listen-feel’ ‘hands-only CPR’ • Even for healthcare providers, empahsis is on early quality CPR – Airway has been un-throwned!!! – But not forgotten… The ACLS “Surveys” Secondary • • • • Airway: advanced intervention Breathing: confirm & secure tube Circulation: IV access & Meds Differential Diagnosis Review Question In an adult patient, what are the answers to the following as they relate to CPR? • Compression Rate • Depth of Compressions • Ventilation to Compression Ratio • UN-Intubated • Intubated • Ribs Cracking? Case (continued) Your patient is unresponsive. A “Code” is called & CPR is ongoing. You attach your unresponsive patient to the cardiac monitor and see the following: 11 VFib or Pulseless VTach • • • • SHOCK (200 J vs. 360 J) y resume CPR Immediately Perform 5 cycles of CPR Then, ASSESS response VFib or Pulseless VTach • Shock • Everybody E b d – Shock Sh k E = Epinephrine (1 mg IV q 3-5 min) • Anybody – Shock A = Amiodarone (300 mg IV) Review: “C-A-C” and then . . . Secondary Primary • C-A-B-C • Pulse check: CPR • • • • ( (AED/Defib) ) Airway: assess & open Breathing: provide Circulation: CPR Defibrillate: • Airway: advanced intervention • Breathing: g confirm & secure tube • Circulation: IV access & Meds • Differential Diagnosis OBJECTIVES • Emergencies: Patient Approach • Airway Issues • Oxygen Supplementation • Shock Care • Acute Coronary Syndromes • Cardiac Arrest • The Seizing Patient • Questions & Answers Clinical Case This 58-year-old male presents for routine follow-up after recent hospitalization for a left brain stroke. stroke The patient lays down on the examination table – and begins to suffer a grand mal seizure. CARE FOR HIM NOW! 12 The SEIZING Patient • Protect from HARM! The SEIZING Patient (cont’d) • Benzodiazepine: LORAZEPAM 2 mg IV (may repeat every min up to 8 mg) • Trendelenberg – suction – airway (NP) • DILANTIN: 15-18 mg/kg IV load at 50 • Oxygen – IV access • Fingerstick glucose – give DEXTROSE if low mg per min • Others: MAGNESIUM, more DILANTIN, PHENOBARBITAL, PROPOFOL, etc. OBJECTIVES • Emergencies: Patient Approach • Airway Issues • Oxygen Supplementation • Shock Care • Acute Coronary Syndromes • Cardiac Arrest • The Seizing Patient • Questions & Answers 13