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CARDIOVASCULAR ASSESSMENT AND PHYSICAL EXAMINATION 1. 2. 3. 4. Review anatomy & physiology of the cardiovascular system. Discuss relevant aspects of the patient history. Describe physical assessment of cardiovascular status. Review diagnostic procedures, tests and medications relative to the cardiovascular system. Anatomy & Physiology Functions of the heart & CV system Pumps blood to tissues to supply O2 & nutrients Remove CO2 & metabolic wastes Anatomy & Physiology PERICARDIUM / PERICARDIAL SAC Protects heart from trauma Serous fluid lubricates and prevents friction Prevents heart from over filling CORONARY ARTERIES Right & Left arteries encircle the heart and supply blood to the myocardium during ventricular relaxation( diastole) LEFT MAIN CORONARY ARTERY L ANTERIOR DESCENDING (LAD) L CIRCUMFLEX (LCX) RIGHT CORONARY ARTERY POSTERIOR MARGINAL CORONARY ARTERIES (L) ARTERY CIRCUMFLEX (R) ARTERY LAD CARDIAC LOAD Preload = degree of myocardial fiber stretch at the end of diastole and just before contraction Afterload = pressure against which ventricles must eject blood. This pressure is affected by systemic vascular resistance (SVR) 8 OTHER ELEMENTS OF CARDIAC ASSESSMENT Previous cardiac hx Other medical conditions that may affect heart function Chest injury Previous heart surgery Past medical hx Medications: prescribed, OTC, herbals Activity tolerance Health habits Family hx CARDIOVASCULAR EXAMINATION HISTORY PHYSICAL EXAM LAB TEST ECG CARDIAC IMAGING CARDIOVASCULAR SYMPTOM CHEST PAIN SHORTNESS OF BREATH DOE ( DYSPNEA ON EXERTION) PND ( PAROXYSMAL NOCTURNAL DYSPNEA) WHEEZING CONTINUED DIZZINESS SYNCOPE PALPITATION FATIGUE EDEMA INTERMITTENT CALAUDICATION CYANOSIS CONTINUED AGGRAVATING FACTORS ALLEVIATING FACTORS PREVIOUS LABORATORY TESTS RISK FACTORS EXAMINATION Inspection Palpation Percussion Auscultation GENERAL APPEARANCE VITAL SIGNS JUGULAR VEINS HEART PRIPHERAL PULSES VITAL SIGNS BP HEART RATE RHYTHM RESPIRATORY RATE TEMPERATURE INSPECTION 17 JUGULAR VEINS/ JUGULAR VENOUS PRESSURE RIGHT SIDE , HEAD TILTED TO L ADJUST ANGLE OF BED TO SEE PULSATION AT MIDNECK RECORD DISTANCE FROM R ATRIUM TO TOP OF PULSATION 18 INSPECTION (continued) • Lips, nail beds • Heart: apical impulse point of maximal impulse • Extremities: (edema, venous or arterial insufficiency) 22 IMPULSES – FINGER PADS THRILLS ( vibration palpated secondrary to a murmur – turbulant blood flow through a heart valve) APICAL IMPULSE ( normally 5th ICS and medial to mid- clavicular line) Point of max impulse Left lateral decubitus : position apical impulse more easily palpable AUSCULTATION • Diaphragm – medium and high frequency sounds • Bell – low frequency sounds • Normally hear closure of valve • Sounds from left side of heart louder than equivalent sounds from right side of heart AUSCULTATION • S1 – closure of mitral and tricuspid valves • S2 – closure of aortic and pulmonic valves • S1 systole S2 diastole S1 • Simultaneous palpation of carotid pulse can help in differentiating S1 and S2 FIRST AND SECOND HEART SOUNDS • Aortic component (A2) normally louder than pulmonic component (P2) • Mitral component (M1) normally louder than tricuspid component (T1) 28 DIAPHRAGM • Right 2nd intercostal space Aortic Area • Left 2nd intercostal space Pulmonic Area • Third intercostal space Erb’s point • Left lower sternal border Tricuspid area • Apex – over apical impulse Mitral area BELL • Left lower sternal border • Apex • Apex with patient in left lateral decubitus position • Light pressure only! Abnormal heart sound and murmur S3,s4 ,click …… Systolic murmur: AS,MR,PS ,TR,VSD Diastolic murmur: AR,MS,PR,TS 31