Correct Answer: B

Rationale: Tuberculosis (TB) is prevalent in many parts of Asia, including Vietnam, and the incidence of TB is higher in immigrants from Vietnam compared to the general U.S. population. Conducting tuberculosis screening is crucial to identify and address any cases promptly, especially in a community with recent immigrants from Vietnam. While teaching about contraceptive use, providing colonoscopy information, and testing for hepatitis may be relevant for certain individuals in the community, they are not as universally important as tuberculosis screening due to the increased risk of TB among Vietnamese immigrants.

Correct Answer: A

Rationale: The correct answer is 'Respirations are 36 breaths/minute.' An increased respiratory rate is a crucial sign of respiratory distress in patients with COPD, necessitating immediate interventions like oxygen therapy or medications. The other options are common chronic changes seen in COPD patients. Option B, the 'Anterior-posterior chest ratio is 1:1,' is related to the barrel chest commonly seen in COPD due to hyperinflation. Option C, 'Lung expansion is decreased bilaterally,' is expected in COPD due to air trapping. Option D, 'Hyperresonance to percussion is present,' is typical in COPD patients with increased lung volume and air trapping.

Correct Answer: A

Rationale: Paradoxic chest movement is the most concerning finding as it indicates a potential flail chest, which can lead to severe compromise in gas exchange and rapid hypoxemia. This condition requires immediate attention to prevent respiratory distress. Complaint of chest wall pain, a slightly elevated heart rate, and a large bruised area on the chest are important assessment findings but may not immediately threaten gas exchange or respiratory function. Therefore, identifying paradoxic chest movement is critical for prompt intervention and management.

Correct Answer: C

Rationale: The normal WBC count indicates that the antibiotics have been effective. All the other data suggest that a change in treatment is needed.

Correct Answer: A

Rationale: Increased tactile fremitus over the area of pulmonary consolidation is expected with bacterial pneumonias, such as pneumococcal pneumonia. Dullness to percussion would be expected due to consolidation. Pneumococcal pneumonia typically presents with a loose, productive cough rather than a dry, nonproductive cough. Hyperresonance to percussion is not a typical finding in pneumonia and may suggest conditions like emphysema. Adventitious breath sounds such as crackles and wheezes are typical in pneumonia, but a grating sound on auscultation is more representative of a pleural friction rub rather than pneumonia.