3. The following pulsed Doppler tracings were recorded (Fig. 10.31). The upper portion of the figure is the Doppler flow across the mitral valve, and the bottom portion of the figure is Doppler flow across the tricuspid valve. The most likely diagnosis for this patient is: a. Chronic obstructive pulmonary disease b. Normal respiratory variation c. pericardial tamponade d. Positive pressure ventilation .

1. 3. The following pulsed Doppler tracings were recorded (Fig. 10.31). The upper portion of the
figure is the Doppler flow across the mitral valve, and the bottom portion of the figure is Doppler
flow across the tricuspid valve. The most likely diagnosis for this patient is:
a. Chronic obstructive pulmonary disease
b. Normal respiratory variation
c. pericardial tamponade
d. Positive pressure ventilation