Natural radiation accounts for ______ of the average annual effective dose per person in the US.

The heart should not exceed _____ of the size of the lung fields on a chest x-ray.

Match Brand or generic from the left side with generic or Brand from the right side. 

Below is a system of linear equations. (A) Write the coefficient matrix corresponding to the system. (B) Write the augmented matrix corresponding to the system.

Identify at least two signs/symptoms of hyponatremia.

The standard is to take the chest x-ray on  _______________ to allow complete visualization of the lungs. a. inspiration b. a full stomach c. an empty stomach d. expiration

A _____________ may help diagnose small areas such as a pneumothorax. a. PA projection b. AP projection c. Apical lordotic projection d. Lateral decubitus projection

Calcium levels below 8.6 mg/dL or 2.15 mg/dL results in what condition?

A healthy lung will appear white on an x-ray.

If fluid invades the pleural space/diaphragm, the space will appear _________________ in shape.