Lecture 1: Heart Sounds Flashcards
Where is the listening post for the mitral valve?
Left 5th ICS at MCL
Where is the listening post for the tricuspid valve?
Left 4th ICS at SB
Which grades of murmur are associated with a palpable thrill?
Grade 4-6
Which grade of murmur is moderately loud?
Grade 3
Which grade of murmur is loud with palpable thrill?
Grade 4
What does the S1 and S2 sound signify?
- S1 = closure of the TV and MV
- S2 = closure of the AV and PV
Which sound is dull, low pitch; and best heard with the bell?
S2
Which heart sound is a ventricular gallop and which is an atrial gallop?
- S3 = ventricular gallop
- S4 = atrial gallop
What is the cause of the S4 heart sound?
Forceful ATRIAL contraction against STIFFENED low compliant ventricle
What are the systolic murmurs?
MI AS TI PS
What are 4 causes of continous murmurs?
- PDA (machinery)
- AV fistula
- ASD with high LA pressure
- Coarctation
Most common causes of chronic mitral regurgitation?
- MVP = most common
- MAC (mitral annular calcification)
Which cause of systolic murmur is characterized as blowing, prominent at apex; radiates into left axilla?
MR
Rumbling, diastolic murmur - low pitched; best heard at apex w/ the bell
Mitral Stenosis
What are the hallmark signs/sx’s of aortic stenosis?
- Exertional dyspnea
- Angina
- Syncope
- HF