AANP Family Nurse Practitioner (FNP) Certification ExamAssessmentHard
A 22-year-old female presents with a 3-month history of a persistent, productive cough with thick, purulent sputum, recurrent respiratory infections, and occasional hemoptysis. She has a history of childhood pneumonia. On examination, crackles and rhonchi are heard bilaterally. Which diagnostic test is considered the gold standard for confirming the suspected diagnosis?
- AHigh-Resolution Computed Tomography (HRCT) of the chest
- BSpirometry
- CChest X-ray
- DSputum culture and sensitivity
Show answer & explanationAnswer & explanation
Correct answer: A. High-Resolution Computed Tomography (HRCT) of the chest
The patient's chronic productive cough with purulent sputum, recurrent infections, and hemoptysis are highly suggestive of bronchiectasis. While other tests may provide supportive evidence, HRCT of the chest is considered the gold standard for diagnosing bronchiectasis by directly visualizing the characteristic bronchial dilation and wall thickening.
Why the other options are wrong
- B. Spirometry can show obstructive or restrictive patterns but is not diagnostic of the structural changes of bronchiectasis.
- C. A chest X-ray may show non-specific findings (e.g., crowded bronchial markings) but is often normal or insufficient for definitive diagnosis of bronchiectasis.
- D. Sputum culture identifies pathogens causing infections but does not diagnose the underlying structural lung disease of bronchiectasis itself.
Bronchiectasis Diagnosis
Bronchiectasis is a chronic lung condition characterized by permanent, abnormal dilation of the bronchi. The gold standard for diagnosis is High-Resolution Computed Tomography (HRCT) of the chest, which directly visualizes the dilated airways.
- Symptoms: chronic productive cough, purulent sputum, recurrent infections, hemoptysis.
- Caused by recurrent inflammation and infection leading to airway damage.
- HRCT visualizes bronchial dilation, wall thickening, and lack of tapering.
Memory trick: Bronchiectasis's Best Bet: Bronchial CT Scan.