Cardiovascular Sounds with Both Systolic and Diastolic Components

Question 1

o Timing: continuous murmur without silent interval; loudest in diastole
o Location: above medial third of clavicle and louder on right side
o Radiation: 1st and 2nd intercostal spaces
o Intensity: soft to moderate
o Best heard with bell; humming, roaring

Answer 1

Venous Hum

Question 2

o Timing: three short components
o Location: variable; best heard in 3rd intercostal space left of sternum
o Radiation: little
o Intensity: variable; increases when PT leans forward, exhales and holds breath
o Best heard with diaphragm; scratchy, scraping

Answer 2

Pericardial Friction Rub

Question 3

o Timing: continuous murmur in both systole and diastole often with silent interval in late diastole
o Location: left 2nd intercostal space
o Radiation: towards left clavicle
o Intensity: usually loud, sometimes associated with thrill
o Loudest in late systole; obscures S2 and fades in diastole
o Harsh, medium pitch

Answer 3

Patent Ductus Arteriosus