Cardiovascular Flashcards
(35 cards)
S1
- Lub
- Closure of AV (mitral, tricuspid) valves
- Loudest at APEX of heart
- Marks end of diastole, beginning of systole
S2
- Dub
- Caused by closure of semilunar valves (aortic, pulmonic)
- Loudest at base
- End of systole, beginning of diastole
- Splits on inspiration
- Wide fixed split caused by RBBB
- S2 louder with PE
Aortic Value Ascultation Point
2nd Intercostal space, R sternal boarder
Pulmonic Valve Auscultation Point
2nd Intercostal Space, L Sternal Border
Tricuspid Auscultation Area
Fifth intercostal space, L sternal boarder
Mitral/Apical Auscultation point
5th intercostal space, midclavicular
S3
- Rapid rush of blood into dilated ventricle
- occurs early in diastole
- Apex, using bell
- HF, heard before crackles
- Ventricular gallop, “kentucky”
S3 - Additional Causes
- Pulm HTN
- Cor pulmonale
- Mitral, aortic, tricuspid insufficiency
S4
- Atrial contraction of blood into noncompliant ventricle
- Occurs before S1
- Apex with bell
- Atrial gallop “tennessee”
S4 Causes
- MI
- Infarction
- HTN
- Ventricular hypertrophy
- Aortic Stenosis
Pericardial Friction Rub
- Pericarditis
- Deep pain on inspiration
- May be positional
Pulse Pressure
=Systolic-diastolic
Normal Pulse Pressure
40-60 mmHg
Narrow Pulse Pressure
- Drop in Cardiac Output
- Severe Hypovolemia
Widened Pulse Pressure
- Decrease in SVR (systemic vascular resistance)
- Vasodilation
- Sepsis
When do coronary arteries perfuse?
Diastole
Two Types of Valvular Disease
- Insufficiency
- Stenosis
Is Systole or Diastole longer?
Diastole is 1/3 longer
Causes of valvular Heart Disease
- Coronary Artery Disease
- Ischemia
- MI
- Dilated Cardiomyopathy
- Degeneration
- Rheumatic Fever
- Infection
- Connective Tissue Disease
This type of murmur occurs when valve is closed…
Insufficiency, acute or chronic
This type of murmur occurs when valve is open…
Stenosis, chronic only
Systolic Murmur Sound
Lub - shhhh - dub
Systolic Murmurs
Semilunar Stenosis -Aortic stenosis -Pulmonic Stenosis AV Insufficiency -Mitral Insufficiency -Tricuspid Insufficiency
Diastolic Murmur Sound
Lub - Dub - Shhhh