Which of the following viral structures is used to diagnose infection with hepatitis B?

Which of the following statements is false regarding the use of the chest x-ray to detect a pneu-mothorax?

a. An expiratory film may be best for a small pneumothorax. b. The standard chest film is of limited use in detecting a pneumothorax. c. The film will show a lack of vascular markings in the affected region. d. The lung margin is often visible with a pneumothorax.

The attending physician is the

A. physician who saw the patient in the Emergency Room (or Emergency Department). B. clinician whose advice was requested by another physician during the patient's hospital stay. C. stand-by surgeon during procedures that may require two surgeons. D. clinician primarily responsible for a patient's care during a hospital stay.