________ is the therapeutic use of high-frequency current that induces an electrical field within a portion of the body.

Which of the following statements regarding primary blast injuries is correct?

A) Primary blast injuries are typically the most obvious injuries. B) Primary blast injuries are the most easily overlooked. C) Primary blast injuries are the result of flying glass or shrapnel. D) Primary blast injuries are due entirely to intense heat.

Which of the following is an example of a contrast medium used during radiological procedures?

A) Barium sulfate B) Barium sodium C) Barium cobalt D) Barium citrate