For the following questions, use an ICD-9-CM code book and select the appropriate code(s) for the diagnostic statements given

Which of the following does NOT make up Beck's triad?

a. hypotension b. muffled heart tones c. diminished lung sounds d. jugular vein distention

Which of the following can cause decreased breath sounds? 1. Air or fluid in the pleural space 2. Hyperinflation of lung tissue 3. Mucus plugging of the airways 4. Shallow or slow breathing

a. 2 and 4 only b. 1, 2, and 3 only c. 1, 2, 3, and 4 d. 2, 3, and 4 only