The ‘Y’ descent in JVP waveform represents:

(a) Atrial relaxation
(b) Atrial systole
(c) Atrial emptying
(d) Apical displacement of tricuspid valve

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ANS- (c) Atrial emptying

‘y’ descent presents passive emptying of blood from Right atrium into Right ventricle.

‘y’ descent is absent in cardiac tamponade.

In tricuspid regurgitation rapid ‘y’descent & slow in tricupsid stenosis.

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