Prep for USMLEPrep for USMLE Forum
   Forum    Step 1  Step 2 CK Step 2 CS Step 3  Match  IMGs Resources Search






Previous Topic | Next Topic  N V4 S1 Q 35 Cardiac Catheterizaion 




 
Kaplan Qbank USMLE



Author10 Posts
  #1

a 78 year old man with syncope feel heaviness in his chest with exertion and breathlenessness when lying down
a crecendo/decrecendo systolic murmur is heard best at the second right intercostal space with radiation to the carotid arteries
Which of the following measurements of the left ventricular
and aortic pressure is most likely to be found on cardiac catheterization ?

a.-100/10 left ventricular 150/90 aortic
b.-100/18 left ventricular 100/50
c.-150/10 left ventricular 150/80
d.-150/18left ventricula 100/50
e.-150/18 left ventri 150/80



Thanks for the help



  #2

CHF ?

Well I think the hemodianamic in this case is E
but don't know for sure

  #3

the presentaion i think is classical of Aortic stenosis

the murmur and its radiation suggest AS

the ans wud pble be D


___________________
If you yourself are at peace, then there is at least some peace in the world.

  #4

we have to figure out first what it is
the crescendo decrescendo murmur with radiation to carotids seems AS. AS is most often due to age related sclerosis .
hence we wud look for an answer in which the sytolic pressures in the ventricle are higher than in the aorta. D is the only matching option.

good lucksmiling face

___________________
If you yourself are at peace, then there is at least some peace in the world.

  #5

Maybe,maybe

Thanks

  #6

I mean I agree is aortic stenosis,and probable mitral regurgitation
so I see nummber and I get confused
but thanks for the follow up

  #7

not MR...MR has a pansystolic murmur with radiation to the axilla.

also second right intercostal space would point more towards athe aortic area


i hate murmurs. the numbers arent that bad

___________________
If you yourself are at peace, then there is at least some peace in the world.

  #8

Should be D

Why? One concept is important: LV systolic pressure= aortic systolic pressure at normal condition when AV is fully open.

In this patient, there is a AV stenosis. The above formula becomes LVSP=ASP+ pressure on AV. So, we are looking for a choice with higher LVSP than ASP. It's D.


  #9

one more thing, if it's MS, we would expect higher LASP than LVDP.

The key to cardiac catheter question is to look at LV. LVSP=aortic SP; LVDP=LASP


  #10

sorry xwyf. u got it wrong. explanation by studying is perfect.







You don't have permission to post.




Login or Register to post messages in this topic





















Contact | Leaders | Disclaimer | Privacy

Copyright @ Prep for USMLE. All rights reserved.