The clinical features of tension pneumothorax include
1. tracheal shift to contralateral side
2. absent breath sounds on the affected side
3. low output circulatory failure
4. peripheral cyanosis
Which of the statements given above is/are correct?
Tension Pneumothorax: Key Clinical Features
This section explains the critical clinical features characteristic of tension pneumothorax, based on the provided statements.
Analysis of Clinical Statements
Understanding the signs of tension pneumothorax is vital for prompt diagnosis and treatment. Let's examine the given statements:
- Tracheal shift to contralateral side: Increased air pressure in the affected chest cavity pushes the mediastinum, including the trachea, towards the unaffected (contralateral) side. This deviation is a key indicator of tension physiology.
- Absent breath sounds on the affected side: As the lung collapses due to trapped air, air entry into that lung is severely restricted or completely blocked, resulting in diminished or absent breath sounds upon auscultation.
- Low output circulatory failure: The high pressure within the chest compresses the major veins (vena cavae), hindering blood return to the heart. This reduction in preload leads to decreased cardiac output and can manifest as shock, a state of low output circulatory failure.
- Peripheral cyanosis: While cyanosis can occur secondary to severe hypoxia or systemic shock, it is often considered a less specific sign compared to the direct mechanical and hemodynamic consequences like tracheal shift and impaired venous return.
Statements 1, 2, and 3 represent the most direct and clinically significant features associated with tension pneumothorax.
Important Questions from Chest & Lung Surgery
- A 50 year old male presented with pain along the left arm and ptosis. His chest X-ray showed soft tissue opacity at the apex of the left lung along with the erosion of the adjacent rib. The probable diagnosis is:
- Which of the following are the Indications for lung transplantation?
1. Emphysema
2. Primary pulmonary hypertension
3. Obliterative bronchiolitis
Select the correct answer using the code given below: - A patient of road traffic accident presents to the emergency with increasing restlessness and difficulty in breathing. The respiratory rate is 26 breaths/minute; there are distended neck veins; trachea is deviated to the right side with hyper-resonant note and absence of breath sounds on the left side. Which of the following statements are correct?
1. The most probable clinical diagno-sis is left tension pneumothorax
2. Immediate chest decompression using wide bore cannula in left second intercostal space should be done
3. Immediate chest X-ray should be done to confirm the clinical diagnosis
4. Definitive chest tube insertion in left fifth intercostal space should be done
Select the correct answer using the code given below : Which of the following are correct for herniation via foramen of Morgagni?
1. It occurs posteriorly in chest.
2. Transverse colon is the commonest content.
3. Defect is between sternal and costal attachments.
4. It is a type of congenital hernia.
Select the answer using the code given below.
- Which of the following are correct with regard to lung cancer?
1. Surgical resection has a limited role in curative treatment of lung cancer.
2. Pattern of disease and prognosis of oat cell carcinoma are different to other varieties in the lungs.
3. Small cell lung cancer is a type of Neuroendocrine Tumour (NET).
4. Squamous cancer appears as a cavitating tumour in the lungs.
Select the correct answer using the code given below.
