The central ray (CR) for an anteroposterior (AP) supine, adult chest projection should be centered: 

Situation: An ambulatory patient comes to radiology with a clinical history of possible pneumonia. The patient complains of pain in the center of her chest. What positioning routine should be performed on this patient?

Situation: A PA chest radiograph reveals that the left sternoclavicular joint is closer to the spine than the right joint. What specific positioning error has been committed?

Situation: A patient comes to radiology for a routine chest study. On the PA projection, the radiologist sees a possible calcification near a rib, but she cannot tell whether the calcification is in the lung or on the rib. What additional projections would assist with the diagnosis?

Pleurisy may be domonstrated radiographically by associated: 

A chemical reaction is separated by a yield sign.

Which of the following is not a prokaryotic domain of life

What is the primary goal of the Rogerian method as described in Lecture 4.3?

What does the Rogerian method suggest about the use of personal voice or stance?

During caloric irrigations, the cool irrigation causes: