Right atrial inversion
Contents
Right atrial inversion – (collapse)
Minimum ————- ml of pericardial fluid is enough to cause circumferential effusion
[A] 50
[B] 100
[C] 200
[D] 250
RA inversion time index of at least ——– is associated with clinically evident tamponade
[A] 0.11 [B] 0.22 [C] 0.33 [D] 0.44
RA inversion time index
RA inversion time index – readily calculated as number of frames during which the right atrium is inverted
divided by number of frames per cardiac cycle
RA inversion time index of at least 0.33 is associated with clinically evident
tamponade (100% specificity, 95% sensitivity)
