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The direction indicated by “a” is:

During abdominal ultrasound, peritoneal effusion is noted and abdominocentesis performed to obtain a sample for cytologic evaluation.  Which of the following types of effusions could potentially be recovered from the peritoneal cavity?

You obtain this long axis ultrasound image of the kidney with the patient in dorsal recumbancy and the ultrasound probe on the patient’s ventrum.  Which direction with respect to the patient would you need to slide your ultrasound probe to obtain a mid sagittal image of this kidney?

This image is depicting M-mode of the right and left ventricle.

With the patient in dorsal recumbency and the ultrasound probe in contact with the ventral abdomen you obtain a sagittal view of the urinary bladder. When looking at the image on the screen of the ultrasound machine the apex of the urinary bladder will be located to the left and the bladder neck to the right of the screen. 

With the patient in dorsal recumbency and the ultrasound probe in contact with the ventral abdomen you obtain a sagittal view of the urinary bladder. When looking at the image on the screen of the ultrasound machine the apex of the urinary bladder will be located to the left and the bladder neck to the right of the screen. 

In this image of the liver, the arrow is pointing to a portal vessel.

In this image of the liver, the arrow is pointing to a portal vessel.

The thin hyperechoic region of this small intestinal loop indicated by “A” represents:

A banner ad from Toyota received 400,000 impressions, out of which 2,500 click-throughs to the website were generated. What is the click-through rate for the banner ad? (Formula: Click-through rate = Number of click-throughs/ad impressions).