what length PR interval indicates heart block?
Ans- >200ms
how many beats should you measure for a patient in afib?
Ans- 5 consecutive beats
what congenital heart disease is associated with wolff parkinson white
syndrome?
Ans- ebstein's anomaly
mitral valve prolapse will cause what timin...
ARDMS echo exam Questions and Answers what length PR interval indicates heart block? Ans- >200ms how many beats should you measure for a patient in afib? Ans- 5 consecutive bea ts what congenital heart disease is associated with wolff parkinson white syndrome? Ans- ebstein's anomaly mitral valve prolapse will cause what timing of MR? Ans- mid-late systolic MR pulmonary acceleration time/pulmonic valve acceleration time Ans- PW Doppler PSAX at PV annulus interval between onset of pulmonary flow and peak velocity decreased acceleration time (<130 msec) is assoc. with increased pulmonary resistance/PHTN what indicates severely elevated pulmonary artery pressure? Ans- PVAT/PAT <80 msec, systolic notching what is the formula for mean pulmonary artery pressure (mpap)? Ans- 80-0.5XPVAT Qp/Qs Ans- ratio of pulmonary to systemic blood flow CSA(RVOT)XVTI(RVOT)/CSA(LVOT)XVTI(LVOT) >1.5:1= hemodynamically significant shunt what s/p repair may have severe PI? Ans- tetralogy of fallot what view is best to identify cleft MV? Ans- PSAX MV what view is best to identify flail MV leaflet? Ans- PLAX or A4C what is parachute MV? Ans- a single or fused papillary muscle th at all chordae connect to what view is best to diagnose parachute MV? Ans- psax pap level shows one pap muscle apical shows funnel appearance of MV what does parachute MV cause? Ans- MS what causes parachute MV? Ans- abnormal LV compaction what is the mechanical index? Ans- a measure of acoustic power what is the max mechanical index for contrast echo? Ans- 0.3 what is the normal mechanical index for regular echo? Ans- 1.3 what is the maximum FDA approved mechanical index? Ans- 1.9
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