Two ultrasound systems have near zone lengths of 8 cm. At the focus, System G’s lateral resolution is 3.0 mm, while System P’s is 5.0 mm. Which system will produce higher quality pictures at the foci?

Gain is a ratio of

The number of pixels and the resolution is preserved in

The ratio of the largest power to the smallest power the receiver can handle is the

For proper echo placement on the frame

When using standard ultrasonic imaging instrumentation, lateral resolution has a higher numerical value than the axial resolution.

What causes bleeding during a thoracentesis?  

The main drawback to nitrogen washout is _________. A. No special gas mixture is needed B. Specialized breathing pattern is required C. Inaccurate results for air trap diseased patients

To prove that the medication is effective, the patient must have at least a ____ % improvement in either FVC or FEV1.

A significant prebronchodilator increase shows reversible small-airway obstruction.