Step I Fixed vs. Wide splitting

[Transformers]

So FA has Wide and fixed splitting both not being affected by breath...what is the difference between the two, at the end of the day both etiologies (pulmonic stenosis, RBBB in wide; ASD in fixed) has the same notion that it takes longer time for the pulmonic valve to close due to a longer duration of Prv > Ppulmonary artery vs. Plv > Paorta...

 

[Wolverines83]

there should still be variation in wide splitting with inspiration. it's just "wider" because something is delaying closure of pulmonic valve.

 

[Transformers]

would they ever ask you splitting heart sounds on the step or are murmurs sufficient?

 

[stronghold]

There is a difference between but come on...who could distinguish between them using stethoscope? You are NOT required to distinguish between them even in residency boards!