What pathology is demonstrated in the following image of a contrast study of a kidney?

You are performing a contrast enhanced ultrasound on a 2 year old using lumason.  What is the correct dosage for a child.  

What genre is “Dream of the Rood”?

To which author does the following quotation belong?   Dull sublunary lovers’ love (Whose soul is sense) cannot admit Absence, because it doth remove Those things which elemented it.

When did Shakespeare write Twelfth Night?

In Twelfth Night, who says, “And thus the whirligig of time brings in his revenges”?  

Consider the setting established in Swift’s opening paragraph.  In what “great town” does one see the “melancholy object” of mothers begging for bread for their children?

During cataract surgery, the surgeon requests a substance to maintain the anterior chamber and protect the corneal endothelium. Which should the CST anticipate?

During common bile duct exploration, the surgeon requests an instrument to extend the ductotomy. Which should the CST pass?

A Gram-stained bacterial specimen appears pink or red. How should the organism be classified?