Murmers Flashcards
1
Q
What are signs of an innocent ejection murmer?
(4+3)
A
- Asymptomatic patient
- Soft blowing murmur
- Systolic murmer only, not diastolic
- Left sternal edge murmer
Also:
- Normal heart sounds with no added sounds
- No parasternal thrill
- No radiation
2
Q
Why are innocent or flow murmers often heard during febrile illness or anaemia?
A
- Because of increased cardiac output
- Therefore important to assess child once other illnesses have been treated
3
Q
Why do many newborn infants with potential shunt have neither symptoms or a murmer at birth?
When does the murmer become apparent?
A
- As pulmonary vascular resistance is still high at birth
- Conditions such as VSD or ductus arteriosus may only become apparent at several weeks of age when the pulmonary vascular resistance falls
4
Q
What is a venous hum?
Where is it heard?
A
- A common & harmless condition found in children
- Can be heard above the right clavicle and over the right jugular vein
5
Q
Why does the venous hum occur?
When will the sound disappear?
A
- The flow of blood in the right jugular vein causes the vein walls to vibrate and this creates a humming noise
- The hum is heard throughout the cardiac cycle and placing a finger on the jugular vein will abolish the sound
- The murmer may disappear if pt is supine or if pt turns their head to one side