Cardiac Disorders Chp 3 Flashcards
Nursing intervention for CAD
- ) Enhancing myocardial oxygenation is always the 1st priority when a client exhibits signs or symptoms of cardiac compromise. Without adequate oxygen the myocardium suffers damage
- ) sublingual nitroglycerin is administered to treat acute angina
Atherosclerosis
Atherosclerosis or plaque formation is the leading cause of CAD.
Diabetes mellitus Is a risk for CAD but it isn’t the most common cause
MI is commonly a result of CAD
Atherosclerosis is a direct result of plaque formation in the arteries. Arteries not veins supply the coronary arteries with oxygen and other nutrients.
Harden vessels can’t dilate properly and therefore constrict blood flow and oxygen causing angina
Which is the most common symptom of myocardial infarction
- )Chest pain-resulting from deprivation of oxygen to the heart
- ) Dyspnea-related to an increase in the metabolic needs of the body during a MI
Edema is a later sign if heart failure commonly seen after an MI
Palpitations may result from reduce cardio output producing arrhythmias.
The correct landmark for obtaining an apical pulse is the
Left fifth intercostal space in th midaxillary line . This is the point of maximal impulse and the location of the left ventricular apex
Pulmonary pain
A knife like chest pain that increases in intensity with inspiration
Abnormalities of the pulmonic valve are auscultated at
The second left in intercostal space along the left sternal border
Aortic valve abnormalities are heard at the
Second intercostal space to the right of the sternum
Mitral valve abnormalities are heard at the
Fifth intercostal space in the midclavicular line
Tricuspid valve abnormalities are heard at the
Third and fourth intercostal spaces along the sternal border
S3 aka 3rd heart sound
Rapid filling of the ventricle causes vasodilation
Systemic hypertension or
Can result in a a 4th heart sound
Aortic valve malfunction
Is heard as a murmur
ECG
Is the quickest most accurate and most widely used tool to determine the location of MI
Cardiac enzyme
Use to diagnose MI
Echocardiogram
Is used most widely to view myocardial wall function after an MI has been diagnosed