30 year old male comes with h/o acute breathleuitess. JVP sed Inspiratory fall of B.P. by 14 mmHg true about this condit ion-

Low-voltage ECG is usually defined as a QRS amplitude of 5 mm (0.5 mV) or less in all of the frontal plane leads and 10 mm (1.0 mV) or less in all of the precordial leads. Low voltage often occurs in the frontal plane without low voltage in the precordial leads (voltage discordance). Ref Harrison 20th edition pg 1534