CT Imaging of the Thorax Identification

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What is the main purpose of high-resolution CT (HRCT) imaging of the lungs?

To detect foreign objects lodged in the airways

To evaluate diffuse lung parenchymal diseases like sarcoidosis and interstitial pulmonary fibrosis (correct)

To diagnose lung cancer and assess tumor invasion

To visualize the heart and major blood vessels in the thoracic cavity

In the provided CT image (C), what does the black arrow indicate?

A pleural effusion

Bronchiectasis in the right upper lobe

Prominent mediastinal lymph nodes

A right upper lobe carcinoma invading the mediastinum (correct)

Which of the following conditions can cause bronchial casts or plugs?

Pulmonary embolism

Allergic bronchopulmonary aspergillosis (correct)

Lung cancer

Pneumonia

What is the most common location for a foreign body aspiration in children?

Right main bronchus (A) Signup and view all the answers

Which imaging modality is recommended for assessing pleural effusion?

Ultrasound (D) Signup and view all the answers

According to the provided information, which of the following conditions can lead to retained secretions in the airways?

Postoperative state or debilitated patients (C) Signup and view all the answers

Which of the following is NOT a common method used to investigate respiratory disease?

Lung biopsy (B) Signup and view all the answers

What is the typical direction of lung collapse in a pneumothorax?

Inward and downward (C) Signup and view all the answers

Which of the following is the LEAST common cause of lung collapse?

Bronchial rupture (A) Signup and view all the answers

Which of the following imaging modalities is LEAST useful for evaluating thoracic trauma?

Mediastinoscopy (D) Signup and view all the answers

Which of the following lung lobes is LEAST likely to collapse in a pneumothorax?

Lingula (D) Signup and view all the answers

Which of the following is the MOST sensitive test for detecting a pneumothorax?

Ultrasound (FAST) (A) Signup and view all the answers

Which of the following is the LEAST common radiological sign of a tension pneumothorax?

Pleural effusion (A) Signup and view all the answers

Which of the following imaging modalities is LEAST useful for evaluating a suspected diaphragmatic injury?

Bronchoscopy (D) Signup and view all the answers

Which of the following is the LEAST common radiological sign of a traumatic lung contusion?

Mediastinal widening (C) Signup and view all the answers

Which of the following imaging modalities is LEAST useful for evaluating a suspected esophageal rupture?

Bronchoscopy (C) Signup and view all the answers

What is the main cause of all hypoxia problems at high altitudes?

Decreased barometric pressure (B) Signup and view all the answers

Which of the following is a characteristic direction of lung lobe collapse?

The lower lobes collapse upwards and inwards (A) Signup and view all the answers

What is the purpose of an anteroposterior (AP) chest X-ray?

To image patients who are unable to stand or cannot be taken to the radiology department (C) Signup and view all the answers

What is the characteristic appearance of the right upper lobe collapse on a chest X-ray?

The lobe collapses upwards and inwards, creating an arch over the remaining lung (B) Signup and view all the answers

What is the effect of chronic mountain sickness on the cardiovascular system?

Increased pulmonary arterial pressure and right ventricular hypertrophy (B) Signup and view all the answers

Which of the following is a common cause of lung collapse?

Enlarged tracheobronchial lymph nodes (B) Signup and view all the answers

What is the purpose of a postero-anterior (PA) chest X-ray?

To obtain routine images with the X-ray source behind the patient (A) Signup and view all the answers

What is the characteristic direction of collapse for the left upper lobe?

Forwards against the anterior chest wall (C) Signup and view all the answers

What is the primary mechanism of acute pulmonary edema at high altitudes?

Increased capillary pressure due to pulmonary arteriole constriction (A) Signup and view all the answers

How does the acclimatized person respond to high-altitude hypoxia compared to the unacclimatized person?

The acclimatized person has a greater increase in red blood cell production (A) Signup and view all the answers