Respiratory Tract Cytology Quiz

What is the first approach for diagnosing central pulmonary nodules?

• Transbronchial fine needle aspiration

• Sputum cytology

• Transesophageal fine needle aspiration

• Bronchoscopic method

What is the preferred method for collecting sputum samples?

• Early morning, deep cough specimens

• Single sputum sample

• Sputum from healthy individuals

• Late evening samples

What technique is used to prepare sputum for staining?

• Direct smear technique

• Centrifugation technique

• Pick and smear technique

• Liquid-based cytology

What is the sensitivity range of sputum cytology for central lung cancers?

• 85% to 90%

• 46% to 77%

• 70% to 80%

• 31% to 47%

Which method is used for bronchial washings?

• Sputum collection

• Direct brushing

• Instilling saline and aspirating

• Transbronchial aspiration

What is the purpose of transbronchial fine needle aspiration (FNA)?

• To collect sputum samples

• To diagnose primary lung lesions

• To perform bronchial washings

• To visualize the tracheobronchial tree

What is the diagnostic accuracy of endoscopic transesophageal FNA?

• 80% to 90%

• 70% to 80%

• 60% to 70%

• 50% to 60%

Which dye is used to stain nuclei blue in the Papanicolaou stain?

• Bismarck brown

• Eosin Azure

• Orange Green 6

• Hematoxylin

What is a common misdiagnosis in pulmonary hamartoma cytology?

• Chronic bronchitis

• Benign neoplasm

• Lung infection

• Lung adenocarcinoma

What is the most common type of lung cancer?

• Squamous cell carcinoma

• Adenocarcinoma

• Small cell lung cancer

• Non-small cell lung cancer