MedSurg III: Exam 3 Unit 5 PDF

Summary

This document appears to be lecture notes or study materials for a medical course, specifically focusing on complex perfusion problems. It covers hemodynamic monitoring techniques and procedures, including central venous pressure and pulmonary artery pressure measurements. It also addresses nursing alerts and considerations for these procedures.

Full Transcript

MedSurg III: Exam 3 Unit 5: Complex Perfusion Problems I CH: 21, 22, 23, 25 Book & PPT, KEY POINTS, Lecture, Hemodynamic Monitoring  Continuous assessment of the CV system to dx & manage complex conditions using direct pressure monitoring systems  Centr...

MedSurg III: Exam 3 Unit 5: Complex Perfusion Problems I CH: 21, 22, 23, 25 Book & PPT, KEY POINTS, Lecture, Hemodynamic Monitoring  Continuous assessment of the CV system to dx & manage complex conditions using direct pressure monitoring systems  Central Venous Pressure o Measurement of the vena cava or right atrium and reflects the filling pressure of the right ventricle (preload). o Normal CVP is 2-6 mm Hg. o CVP > 6 mm Hg = elevated right ventricular preload  = HYPERVOLEMIA or right sided HF o CVP < 2 mm Hg = reduced right ventricular preload  = HYPOVOLEMIA  Dehydration/excessive blood loss/vomiting/diarrhea/ over diuresis o Used for infusing IVF, administering IV medications, and drawing blood specimens. o Preferred site if the subclavian vein Femoral vein avoided  Pulmonary Artery Pressure o To assess left ventricular function, etiology of shock, and evaluate the pt’s response to medical intervention o Assess  left ventricular function, Right atrial pressure  Pulmonary artery pressure, Pulmonary artery wedge pressure o NURSING ALERT  Pulmonary wedge pressure Evaluate the return of the pulmonary artery systolic and diastolic waveform displayed on the bedside monitor. o Normal PAP 8-20 mmHg  Intra-arterial blood pressure o Used to obtain direct and continuous BP measurements who have severe HTN or HYPOotension o Used for Frequent ABG measurements and blood samples. o Site: radial artery  Obtaining pressure o Sterile procedure o A disposable flush system  Never put dextrose normal saline ONLY  Heparin only by orders o A pressure bag placed around the flush solution maintained at 300 mmHg of pressure o A transducer to convert the pressure set a 0 o Monitor  NI o Hand Hygiene o Dressing change  Gauze dressings Q2days; Transparent dressings Q7days  Or whenever dressings become damp, loosened, or visibly soiled. o Assess catheter site (tenderness, fever, s/s systemic infection If infected pull the line and send to lab o Replace transducers, tubing, continuous-flush device, and flush solution every 96 hours or per policy o Bathing  Do not submerge the catheter site in water- NO baths ONLY SHOWER  Showering is permitted if the catheter and related tubing are placed in an impermeable cover. o Patient education ask patient to report any new discomforts from the catheter site. o Keep patent and free of air bubbles o Checking the stopcock of the transducer is positioned at the level of the atrium before system is used to obtain pressures  Landmark is: phlebostatic axis. o Establish the zero-reference point to ensure fx HOB elevated to 60 degrees; reposition axis for accurate reading o Do not introduce anything else into but saline into pressure line (transparent dressing, no antimicrobial ointment)  Complications o Pneumothorax can occur during the insertion of the catheter o Infection – CLABSI if catheter is left in after 72-96 hrs = higher risk for infections take out ASAP if it’s not needed o Air embolis Cardiac Dysrhythmias Sinus Tach/Brady Sinus Tachycardia Sinus Bradycardia  Occurs when the Sinus node creates an impulse at a faster- than-normal rate.  Occurs when the SA node creates an impulse at a  Abnormal fast HR > 100 beats per minute. slower- than-normal rate o Compensatory response to increased demand for cardiac output or reduced stroke volume.  Slowed impulse generation by the sinus node o Sympathetic activation o Decreased parasympathetic activity  Unstable and symptomatic bradycardia is  Etiology frequently due to hypoxemia. o Fever o Hyperthyroidism  Other possible causes: o Pain o Increased metabolism o Low BP o Acute AMS (e.g., delirium); Acute o Hypoxia decompensated HF o Stress  Etiology: o Increased parasympathetic activity o Meds that stimulate the sympathetic o Sleep, Drugs, Increased Stroke vol. response o HTN o Physically Trained Individuals  Characteristics (ATHLETES) o Rate: > 100 bpm but less than 120 bpm o Rhythm: Regular o Vagal stimulation (vomiting, suctioning, o QRS Shape: Normal severe pain) o P Wave: Normal and consistent shape, always in front of the QRS o PR Interval: 0.12-0.20 seconds o Low metabolic needs low HR may be  Dx normal for some ppl like athletes o EKG  NI  Sleep, athlete, hypothyroidism o Assess cause o Perform vagal maneuvers  Carotid sinus massage o Meds (Nifedipine, amiodarone, metoprolol)  Gagging  Characteristics o Rate: Less than 60 bpm  Bearing down against a closed glottis o Rhythm: Regular (as if having a bowel movement) o QRS Shape: Normal o P Wave: Normal and Consistent Shape,  Forceful and sustained coughing always in front of QRS o PR Interval: 0.12-0.20 seconds  Applying a cold stimulus to the face  NI (such as applying an ice- cold wet towel o Assess cause to the face) o Prevent vagal stimulation o Withhold Drugs that cause Bradycardia o Monitor for Hemodynamic Instability  Beta-blockers  Medical  Calcium-channel blockers o Determined by the severity of s/s and o Monitor for Hemodynamic Instability directed at identifying and abolishing its  Tx cause. o Depends on Cause o Synchronized Cardioversion  electrical o Emergency Transcutaneous Pacing current given to sync pts QRS complex to  Medications stop an arrhythmia o Epinephrine (Adrenergic Receptor) o Atropine (Anticholinergic)  If the tachycardia is persistent and causing hemodynamic instability (acute  If the bradycardia is unstable-- (acute AMS, chest discomfort, hypotension) AMS, chest discomfort, or hypotension)  MedIcations  Give 0.5 mg of atropine rapidly as an o Adenosine (Calcium Channel Blockers) i (IV) bolus and repeat Q3 to 5 min until a max dosage of 3 mg is given. o Sotalol, Propranolol (Beta- Adrenergic Blockers) o if the bradycardia is unresponsive to atropineemergency transcutaneous or meds [dopamine, isoproterenol, or epinephrine], are given A-FIB/Flutter Atrial Fibrillation Atrial Flutter “A-FIB” “A-FLUTTER”  Irregular  Regular o Saw tooth impulse coming from same  Atrial depolarizations are blocked at the AV place Node  a few are reaching the ventricles and initiating ventricular contractions.  Occurs because of a conduction defect in the o Causes atria to quiver instead of contract atrium and causes a rapid, regular atrial impulse. forcefully. o Completely disorganized/ irregular  The atrial rate is faster than the AV node can atrial rhythm accompanied by an irregular conduct not all atrial impulses are conducted into ventricular rhythm of variable rate  @ RISK for THROMBI/STROKE/BCLOT the ventricle  Characteristics o Rate: Atrial:300 -600 bpm; Ventricular: o causing a therapeutic block at the AV 120-200 bpm node. o Rhythm: Irregular o QRS: usually normal but may be abnormal  RF & s/s are the same as atrial fibrillation o P wave: No discernible P waves, cannot be measured, Irregular, and shape are referred as fibrillatory waves  Characteristics o PRI: cannot be measured o Rate: Atrial: 250-400 bpm; Ventricular: 75- o P:QRS ratio: Many:1 150 bpm  Etiology/ RF o Rhythm: Atrial: regular; Ventricular: BOTH o Increasing age (60-70) o QRS shape: Normal o HTN, DM, Obesity o P Wave: Saw toothed shape, referred as F o HF, Valvular heart disease waves o Obstructive sleep apnea o PR Interval: Difficult to determine o Alcohol consumption—  s/s o Chest pain,  moderate (1–3 drinks/day)  high (>3 drinks/day) o SOB o Hyperthyroidism o Low BP o Postoperative cardiac surgery o Smoking, Exercise  NI o Vagal Maneuvers o Cardiac ischemia, MI  Medical o Cardiac inflammatory disease o Antithrombotic Therapy similar to Atrial o Myocardial hypertrophy, fibrosis, or dilation Fibrillation o Atrial remodeling o Electrical Cardioversion  CM  Meds o Some patients are asymptomatic o Adenosine (Calcium Channel Blockers)  o Palpitations causes sympathetic block and slowing of o HF conduction through AV node o SOB  Given IV by rapid adm. and o Hypotension (low BP) immed. followed by a 20-mL o Dyspnea on Exertion saline flush and elevation of the o Fatigue arm with the IV line to promote o Pulse deficit—different between apical rapid circulation of the me. and peripheral o Irregular pulse (low cardiac output) pulse deficit  NI o History H&P o Stroke Risk Assessment o Monitor Lab (Coags and H/H)  Keep INR 2.0 and 3.0 o Electrical Cardioversion- Anticipate TEE performed to evaluate for atrial thrombi before cardioversion  Need consent  Tx o Prevent Emboli events o Electro-cardioversion  Indicated for pt with AFib that is hemodynamically unstable  Transthoracic echocardiogram (TEE) o Catheter Ablation  MEDS o Heparin @ hospital/ Coumadin @ HOME  Asystole  Also known as Sinus Arrest.  Results in zero CO  The absence of impulse initiation in the heart results in electrical asystole.  Etiology  NI o MI o High Quality CPR o Electrical Shock o Identifying underlying and contributing o Electrolyte Disturbances factors o Acidosis o IV initiation o Parasympathetic Activity o Prepare for intubation  S/S o Rapid cardiac rhythm analysis and o NO heartbeat, palpable pulse, Defibrillation as soon as it is available respirations  Medical o Intubation o DO NOT shock pt if there’s no electrical conduction no electricity for defibrillator to use  Meds o Epinephrine (Adrenergic agonist) o Push EPI then CPR to keep med pumping for p tbc their body can’t Premature Ventricular Contractions (PVC’s)  Impulse that starts in the ventricle and is conducted through the ventricles before the next normal sinus impulse  Ventricles do not activate the atria while the normal sinus rhythm is buried in the bizarre-looking QRS complex from the premature ventricular beat  The interval b/w the sinus beat preceding the premature beat and the sinus beat following the premature beat is twice the regular interval  Etiology  Characteristics o CAD cardiac ischemia or infarction o Rate: depends on underlying rhythm o Drug Overdose o Rhythm: irregular due to early QRS o Electrolyte imbalance- o QRS: duration is 0.12 seconds or longer,  Hypokalemia shorten narrow shape is bizarre and abnormal resting period then ventricular starts o P wave: visibility of P wave depends on taking over timing of PVC, may be absent  Hyperkalemia elongates resting o PRI: if P wave is in front of QRS PRI is less period than 0.12 seconds  Hypomagnesemia o 2 PVC – couplet o Caffeine, Nicotine, Alcohol o 3 PVC – triplet o HF, Tachycardia o 4 PVC—Quadruple  Quadrigeminy (every o Digitalis Toxicity fourth complex is a PVC o Hypoxia o NS PVC NS PVS – bigeminy o Acidosis o PV looks different – multifocal  CM o PVS looks the same – unifocal o May be asymptomatic or may feel heart “skipped a beat”  Medication o Amiodarone (Potassium Channel Blocker)  NI o Monitoring patient for frequent PVCs V-Tach/FIB Ventricular Tachycardia Ventricular Fibrillation “V-TACH” “DEFIB V-FIB”  REGULAR  Irregular  3 or more PVCs in a row  Most common in pts with cardiac arrest  3 or more consecutive ventricular  Rapid, uncoordinated cardiac rhythm that results in complexes > 100 bpm ventricular quivering and lack effective contraction o The rhythm is regular, and complexes have o Decreased CO = decrease blood supply to the same configuration other tissue  Characteristics  Pt with larger MIs and lower EF at higher risk of lethal VT. o Rate: ventricular >300 bpm  Emergency because the pt is unresponsive and o Rhythm: extremely irregular without a pulseless. pattern  Characteristics o QRS shape: irregular with changing o Rate: Ventricular: 100 to 200 bpm; Atrial: amplitudes depends o Rhythm: Regular  No recognizable QRS complexes o QRS Shape; 0.12 sec or more, bizarre,  Etiology abnormal shape o Premature heart beats, Accelerating V-Tach o P Wave: Difficult to detect (not in book o PR Interval: Difficult to detect o CAD  Etiology o Acute MI o Myocardial ischemia (MI) or infarction o Untreated VT o Damage to the myocardium alters o Cardiomyopathy conduction times and pathways o Acid-Base Imbalances/Electrolyte imbalances o High catecholamine levels o Electrical Shock o Abnormal Electrolytes  CM o Too much digoxin = toxic o Absence of audible HB, palpable pulse,  CM respirations o Decrease in CO = in loss of consciousness o Pulseless, Loss of Consciousness, Apnea o Unresponsive  NI o Pulseless or Pulse o Check pt FIRST CPR until defib is available  NI o Early defibrillation critical to survival o Monitor HR and rhythm o Assess hemodynamic stability o Education for ICD: Other people not going to get shocked  Medical o Amiodarone o EPI  Medical o Intubation w/ pulseless VT o Defibrillation o Cardioversion o Meds  Amiodarone (Potassium Channel Blocker)  Magnesium Sulfate o Unstable  compression and DEFIB VTach VFib  Stable with pulse cardioversion **KNOW  DEFIB Torsades – irregular defib (M- MEDS shaped) Give MAG  Unstable without pulse DEFIB know pt education care on internal defib Interventions (PT EDUCATION)  Pacemakers  ICD: External Defib (vest), Internal defib o Detects and determines life-threatening tachycardia or fibrillation through shock o May need temporary vest until implantation  Worn at all times except when showering  Change battery every day  Delivers shock within 1 minute after rhythm detected  Vest vibrates and alarm to warn shock imminent o Must continue with meds o NI  Same as pacemaker  If battery is weak in ICD you will see s/s prior to ICD Torsades de Pointe  M shaped  Patho o A polymorphic ventricular tachycardia preceded by a prolonged QT interval  Etiology o CNS disease o Med interactions  Ciprofloxacin  Erythromycin  Haloperidol  Lithium  Methadone o Electrolytes  Low potassium  Low calcium  Low magnesium o Congenital  CM o Rhythm likely to cause the patient to deteriorate and become pulseless  EMERGENCY o Polymorphic VT  Medical o Defibrillate o CPR o Correcting electrolyte imbalance o Meds  MAG SULFATE Heart Blocks  A disturbance in conduction between the sinus impulse and its associated ventricular response called atrioventricular (AV) block  Etiology o Functional or Pathologic Defect in the AV Node, Bundle of His, or Bundle Branches o Myocardial Ischemia o Congenital Heart Defects  CM o Vary with the ventricular rate and severity of any underlying disease o Decreased heart rate o Decreased perfusion to organs  1st degree heart block o Prolonged PR interval > 0.20 seconds o No Treatment o When all atrial impulses are conducted through the AV node into the ventricle at a slower rate  2nd degree heart block (Type I) o PRI gets longer and longer until QRS “drops” o NO TX o Progressively lengthening intervals until one P wave is not conducted (QRS dropped) o Occurs when there is a repeating pattern in which all but one of a series of atrial impulses are conducted through the AV node into the ventricles o Each atrial impulse takes a longer time for conduction than the one before until one impulse is fully blocked  2nd degree heart block (Type II) o P-P reg, R-R reg – will progress to 3 degrees without Tx Pacer Tx o Occurs when only some of the atrial impulses are conducted through the AV node into the ventricles o Non conducted P waves with a consistent PR interval o Every PR interval is the same o Tx depends on how frequent QRS drop happens  Pacemaker (either for SA or AV node)  3rd degree heart block o NO P-QRS relationship at all emergency intervention needed Pacer TX o NO impulses are conducted from atria to ventricles (through AV node)  Atrium and ventricle contraction but not in synch o ECG shows regularly occurring P waves that are independent of the ventricular rhythm o Lethal arrhythmia o More P waves than QRS complexes o Tx  Pacemaker  External pacer right now then implantable pacemaker  NI o Physical Assessment o Cardiac Monitoring o If patient does not have symptoms; no treatment or decreasing the cause  MEDICAL: o Transcutaneous pacing (emergent- need right now)  Dislodgement of pacing electrodes  Pacemaker malfunction o Meds  ATROPINE (Anticholinergic)(works in SA node)  1st degree & 2nd degree T1 Pacemaker  Used when a patient has a permanent or temporary slower than normal impulse o Paces the atrium and then ventricle when activity is not sensed for a period of time.  Types o On-Demand pacing o Fixed pacing o Transcutaneous Pacing  Emergency  Temporary until insertion of actual pacer device  Temporary—emergent  In conscious pt to tx symptomatic or unstable bradycardia  Complications o Dislodgement of pacing electrode o Pacemaker malfunction o Inhibition of permanent pacemakers or reversion can occur with exposure to strong electromagnetic fields  Allows patient to safely use most household electronic appliances and devices  Medications o Atropine (Anticholinergic)  NI o Physical Assessment  Look at incisionObserved for bleeding, hematoma, infection  Look for spike on ECG  Spike in front of P wave – atrial pacer  Spike in front of QRS – ventricular pacer  Did device migrate o Cardiac Monitoring o If patient does not have symptoms; no treatment or decreasing the cause (i.e. withhold medication or treatment)  Education o Will set off alarms at airport – take card from vendor o Avoid high magnetic system  Does not include TV, microwave o Avoid cellphone in shirt pocket o Pt with hiccups and a pacemaker is a priority pt o 2-4 wks takes tissues to heal o Electrodes can be dislodged o Do not raise arm above level of pacer o s/s of infx o no swimming until wound heals o chest pain  migration of the leads o when heart isn’t perfusion  can pass out o consistent wooziness CALL DR. Acute Coronary Syndromes  Coronary plaque rupture that develops into acute thrombus.  Prolonged or total disruption of blood flow to the myocardium o Clot formation begins with adherence of PLTs to the ruptured plaque, & attracts more PLTs and forms a plug. o Results in a thrombosis may partially or completely obstruct the artery and cause acute ischemia.  Ischemia of cardiac cells occurs when the oxygen supply is not sufficient to meet metabolic demands. o ACS occurs when sudden obstruction of coronary blood flood flow results in acute myocardial ischemia  ACS may present as unstable angina, MI, or sudden cardiac arrest  Unstable Angina o Occlusion is partial, or the clot is dissolved before the death of myocardial tissue.  REDUCED blood flow o Symptoms increase frequency and severity, not relived with rest or nitro o Reduced blood flow in a coronary artery due to rupture of an atherosclerotic plaque  MI—STEMI/NSTEMI o Complete blockage of vessel (tissue death)  Sudden cardiac death o A decrease in blood supple from CAD may cause the heart to abruptly stop beating  Etiology o Coronary Heart Disease (CHD) o Atherosclerosis  An abnormal accumulation of lipid, or fatty substances, and fibrous tissue in the lining of arterial blood vessel walls.  These substances block and narrow the coronary artery, resulting in decreasing blood flow to the myocardium. o Nearly all infarcts are located in the left ventricular wall. o May occur at any age, but frequency rises with advancing age. o Females younger than 45 years have a six-fold lower risk of MI than men of the same age. o After menopause, the rate of MI in women becomes equal by age 80. o Pt wrist will hurt  Dx o EKG  Myocardial Injury and Ischemia are indicated by ST-segment changes (elevation) o Labs  Elevated serum levels of myoglobin (protein), troponin, (protein) and creatine kinase (CK-MB/Enzyme) o Cardiac Catheterization o Echocardiogram- used to evaluate ventricular function o Troponin  Cardiac protein  Found in the cardiac muscle If found in bloodstream – heart damage  Not the Goldstar anymore bc other heart damage can mimic protein  Increase in the level of troponin in the serum  detected within a few hours during acute MI  Remains elevated for long period often as long as 2 weeks o CKMB  Heart muscle enzymes Cardiac specific isoenzyme  Found mainly in cardiac cells and therefore increases when there has been damage to these cells  Elevated CKMB is an indicator of acute MI  The level begins to increase within a few hours and peaks within 24 hours of an infarct  CM oAngina Pectoris  Chest pain by ischemia o SOB o Indigestion to Choking choking sensation is never normal o N/V, anxiety o Cool, pale, and moist skin.  may indicate cardiogenic shock o HR & RR faster than normal o Heavy sensation in the upper chest o Feeling of impending death o Crushing, chest pain that may radiate to the arm, shoulder, jaw, or back. o Numbness in arms, wrists, and hands o Pallor, Diaphoresis o Dizziness or Light-headed  Prevention o Controlling Cholesterol- Assess labs (KNOW NORMALS)  Low-Density Lipoprotein (LDL) < 100mg/dl  Total Cholesterol 40 mg/dl  Triglyceride < 150 mg/dl o Dietary Measures  small frequent meals o Low Saturated Fats and High Fiber o Weight Loss and Physical Activity o Smoking Cessation o Managing HTN o Controlling Diabetes  NI o Oxygen, 12 Lead EKG, Labs, Medications o Educate small frequent meals throughout the day o MONA  Morphine  Reduce pain and anxiety decrease HR  Reduce preload and afterload  Oxygen  Nitroglycerin  Vasodilate  Aspirin  Blood thinner o Bedrest- Flat and keep affected leg straight until sheath is removed o Repositioning logrolling o Assess site and monitor for bleeding, hematoma, numbness, tingling o Post-op  VS, Labs  Continuous Cardiac Monitoring  Meds Analgesics  Urine Output Monitoring  Smoking Cessation Counseling  Nicotine replacement  Removal of sheath at the end of procedure (vascular closure device, sutures, direct manual pressure, or compression device)  Removed after activated clotting time (ACT) labs indicate that the heparin is no longer active and clotting time is acceptable o Cath  Risk for bleeding  pressure on site for 15-20 min  s/s: pale, cold, numbness, delayed cap refill use doppler  Medical o Goal is to minimize myocardial damage, preserve myocardial function, and prevent complications. o Meds  Statins Antihyperlipidemic (Atorvastatin, Simvastatin)  cholesterol meds  Nitrate (Nitroglycerin)  Cardiac Selective Beta Blocker (Metoprolol)  Calcium Channel Blocker (Diltiazem)  Antiplatelet (Clopidogrel)  Opioid (Morphine)  Anti-platelet (Aspirin)  ACE Inhibitor (Lisinopril)  Anti-coagulant (Heparin) low molecular weight heparin  Glycoprotein (Eptifibatide)  Oxygen o Reperfusion Therapies- aimed at opening the blocked coronary artery o PCI: Percutaneous Coronary Interventions  Used to open the occluded coronary artery and promote reperfusion to the area deprived of oxygen.  Performed within 60 minutes from arrival to ED- Door to Balloon Time  Why is time so important  tissue/cardiac damage o Thrombolysis  Enzymatic digestion of thrombus to open lumen using streptokinase and tissue plasminogen activator (tPA)  Use when PCI is not available.  Should not be used in patients who are bleeding or bleeding disorders  Given within 30 minutes of presentation to the hospital- Door to Needle Time  KNOW CONTRAINDICATIONS***  Active bleeding  Bleeding disorder  Hx of hemorrhagic stroke  Hx of intracranial vessel malformation  Recent surgery/ trauma  Uncontrolled hypertension  Pregnancy o PTCA: Percutaneous Transluminal Coronary Angioplasty  Physical disruption of plaque to open lumen,  Catheter (sheath) inserted in the femoral or radial artery, up through the aorta, and into the coronary arteries.  Dye is injected (angiography) to identify location and extent of blockage.  assess allergies  Complications o Invasive Coronary Artery Procedures  Percutaneous Coronary Interventions (PCI)  Thrombolysis  Percutaneous Transluminal Coronary Angioplasty (PTCA)  CABG: Coronary Artery Bypass Graft (CABG) o The greater saphenous vein is removed from the leg and grafted to the ascending aorta to the coronary artery distal to the lesion. o Surgical placement of a new conduit to bypass the occluded area of the artery. o Indications  Angina uncontrolled with medication of PCI  Treat Left main coronary artery stenosis or multivessel CAD  Prevention and Treatment of MI, Dysrhythmias, or Heart Failure  Unsuccessful PCI  Bypassed arteries must have 70%+ occlusion  50% occlusion in the Left main coronary artery o Complications  Hypovolemia  MI  Hemorrhage  Stroke  Cardiac Tamponade  Acute Kidney Injury  Fluid Overload  Electrolyte Imbalances  Hypothermia  Hepatic Failure  Hypertension  Infection  Cardiac Failure o NI  o Geriatric Considerations  May not present with pain  Dyspnea  Weakness  Give Medications cautiously stay in body longer and don’t metabolize as fast Myocardial infarction  Complete occlusion  STEMI – o significant damage to myocardium (Necrosis) (complete blockage)  NSTEMI – o may be less damage to the myocardium (Ischemic process) (partial blockage)  less damage  If occlusion is complete, and if the thrombus persists long enoughirreversible damage to myocardial cells occurs= necrosis o  Tx o Use rapid transit to the hospital o Obtain 12-lead ECG to be read within 10 minutes o Obtain laboratory blood specimens of cardiac biomarkers troponin Begin routine medical Evaluate for indications for Continue therapy as interventions: reperfusion therapy: indicated:  Supplemental oxygen  Percutaneous coronary  IV heparin, low–molecular-  Nitroglycerin intervention weight heparin, bivalirudin,  Morphine  Thrombolytic (fibrinolytic) or  Aspirin therapy  Fondaparinux  Beta-blocker  Clopidogrel (Plavix)  Angiotensin-converting  Glycoprotein IIb/IIIa enzyme inhibitor within 36 inhibitor hours  Bed rest for a minimum of  Anticoagulation with 12–24 hours heparin and platelet  Statin prescribed at inhibitors discharge.  Statin. Sudden Cardiac Arrest  Unexpected death from cardiac causes within 1 hour of the onset of symptoms  In cardiac arrest the heart is unable to pump and circulate blood to the body’s organs and tissues  Etiology o CHD or Atherosclerosis o Hereditary o Structural or Electrical Abnormalities o Ventricular Fibrillation- most common o Bradycardia leading to Asystole  CM o Consciousness, pulse, and blood pressure are lost immediately o Ineffective breathing or gasping o Pupil dilation o Seizures may occur bc they’re not getting o2 o Pallor or Cyanosis o Brain damage irreversible  NI o CPR  check for responsiveness and breathing code blue/call 911  Chest compression if there’s no carotid pulse and no defibrillator is yet available DEFIB once available o AED o Maintaining Airway and Breathing o ACLS

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