NCMB312 DECK 1 Flashcards
Care of Clients with Problems in Oxygenation, Fluid & Electrolytes, Infectious, Inflammatory & Immunologic Response, Cellular Aberrations (Acute & Chronic)
COMPONENTS INVOLVED IN OXYGENATION
Heart
Lungs
Red Blood Cells
Blood Vessels
cone-shaped hollow muscular organ
Heart
Heart located in the -between the lungs
mediastinum
Heart pumps about ml/beat
60ml/beat
Heart pumps about L/min
5L/min
protective covering of the heart
Pericardium
Innermost layer of cardiac muscle tissue
Endocardium
Middle layer of cardiac muscle tissue, responsible for the pumping action
Myocardium
outermost layer of cardiac muscle tissue
Epicardium
3 LAYERS OF CARDIAC MUSCLE TISSUE
Endocardium, Myocardium, Epicardium
4 CHAMBERS OF THE HEART
Right atrium
Right Ventricle
Left atrium
Left ventricle
Right atrium/atrial pressure
0-5 mmHg
Right ventricle pressure
25 mmHg
Valves of the Heart
Atrioventricular valves, Semilunar valves
Superior Vena Cava, Inferior VenaCava, Coronary sinus
Right atrium
blood enters the right atrium via three veins
superior venacava, inferior venacava, coronary sinus
Left Ventricle, Ventricular septum, chordae tendinae, papillary muscle, RV (lesser extent)
Left anterior descending
Left Atria, lateral & posterior surfaces of LV, portion of interventricular septum, SA node, AV node
Circumflex coronary artery
Inflammation of the pericardium
PERICARDITIS
Associated w/ the following:
– Malignant neoplasms
– Post-MI syndrome (Dressler’s syndrome)
– Postpericardiotomy syndrome
– Systemic connective tissue disease
– Renal failure
PERICARDITIS
Chronic Pericardial Inflammation causes fibrous thickening of the pericardium
PERICARDITIS
Assessment found
– PAIN radiating to the neck, shoulder & back
aggravated by inspiration, coughing & swallowing
worst in supine position (relieved by sitting up & leaning forward)
– Pericardial friction rub (scratchy high pitch sound)
PERICARDITIS
INTERVENTION for uremic pericarditis
Hemodialysis
INTERVENTION for chronic constrictive pericarditis
Pericardiectomy
in PERICARDITIS, the complication to monitor is
pericardial effusion
A build-up of blood or other fluid in the pericardial sac puts pressure on the heart, which may prevent it from pumping effectively.
CARDIAC TAMPONADE
Findings:
– Jugular distention
– decrease cardiac output
– Muffled heart sounds
– Circulatory collapse
CARDIAC TAMPONADE
In CARDIAC TAMPONADE, the Paradoxical pulse is systolic BP - or more on expiration than on inspiration
10mmHg
emergency care for CARDIAC TAMPONADE
pericardiocentesis
CAUSE
– Viral, bacteral, fungal & parasitic infection
– Chronic alcohol & cocaine abuse
– Due to ischemia: tachycardia, dysrhythmias
MYOCARDITIS