Exam 2: Cardiovascular Assessment part 1 Flashcards
What is the precordium?
The anterior chest wall overlying the heart
What is pectus excavatum?
Sternal depression
“Funnel chest”
Wha is pectus carinatum?
Sternal protrusion
Is pectus excavatum or pectus carinatum more common?
Pectus excavatum
What side of the stethoscope is used for high pitched sounds?
Diaphragm
What side of the stethoscope is used for low pitched sounds?
Bell
What are the 4 key areas for cardiac auscultation?
- Aortic: Second intercostal space, right sternal border
- Pulmonic: 2nd intercostal splice, left sternal border
- Tricupid: 4th and 5th intercostal space, left sternal border
- Mitral: 5th intercostal space, mid-clavicular line
What produces the S1 “Lub” sound?
Closure of the mitral and the tricuspid valves
What is systole?
Ventricular contraction
What can cause an accentuated S1?
Diseased AV valve or more forceful closure of AV valve
-tachycardia, fever, HTN, exercise, anemia, hyperthyroidism, or mitral stenosis
What can cause diminished S1?
Weak contraction of the heart or reduced sound transmission
-Thick chest wall or emphysematous lungs
Is S1 one S2 louder at the apex?
S1
What produces the S2 “Dub” sound?
Closure of the aortic and pulmonic valves
Is S1 or S2 louder at the base?
S2
What is diastole?
Relaxation of the heart
Is systole or diastole longer?
Diastole
What is physiological splitting on S2?
When the right sided pressures are lower than the left, the sounds occurs slightly later on the right.
-May hear A2 and P2 during inspiration
What is pathologic S2 splitting?
When there is delayed closure of the pulmonic valve or there is delayed contraction of the left ventricle
What is paradoxical splitting and when does it occur?
When P2 occurs before A2; occurs during expiration and gone during inspiration.
-Can be a result of LBBB
What is wide pathologic splitting?
An increase in usual splitting during inspiration that can be a result of pulmonic stenosis, mitral regurgitation, and RBBB
What is fixed pathologic splitting?
Splitting that does not vary with respiration and can be a result of atrial septal defect and right ventricular failure
What is S3?
Low pitched sound created in early diastole by filling of the ventricles with blood from the atria
Where is S3 best heard?
With bell at apex
What is a pathologic S3 and what is the cause?
- ventricular gallop
- caused by heart failure, anemia, volume overload of ventricle, and decreased myocardial contractility
When is S4 and what causes it?
S4 is in second phase of ventricular filling in diastole, as the atria contract and eject blood into the ventricles (atrial kick)
-Produced by the rush of blood causing vibration of valves, papillary muscle, and ventricular wall
Where is S4 best heard?
With bell at apex
Can S3 be normal?
Yes, it can be heard in children, healthy young adults, and pregnant women
What is pathologic S4?
- atrial gallop
- if over 40, usually pathologic
- Due to resistance to ventricular filling (deceased compliance) from HTN, CAD, cardiomyopathy
What causes a right sided S4?
Pulmonary HTN or pulmonary stensosis
What is a murmur?
A prolonged heart sound made by blood rushing though a narrowed valve, leaking valve, or a wall between chambers of the heart