Which of the following findings on the chest radiograph is considered a secondary sign of em-physema?

a. Flattening of the diaphragm
b. Widening of the cardiac shadow
c. Narrowing of the space between the ribs
d. Blunting of the costophrenic angle

ANS: A
In patients with chronic obstructive pulmonary disease, there may also be an increase in the an-teroposterior diameter of the chest, with associated enlargement of the retrosternal and retrocar-diac airspaces and flattening of the hemidiaphragms.

Health Professions

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If the amount of the payments made by the plan is more than it should have paid under the COB, from where can the plan recover the excess?

a. Relatives of the insured b. Other insurers/plans c. Competitors d. Medicare

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Which of the following is a purified concentrate of human anti-D?

a. HBIg b. RhIg c. Rhmod d. Rhvariable

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