Identify the disorder presented in X-ray:

Appeared in: Combined AIIMS - 2020 (Jodhpur, Bhopal, Patna, Raipur)

Explanation

The X-ray shows a dense, uniform opacity in the left lower lung field, which is characteristic of fluid accumulation.
A key finding is the blunting or obscuring of the left costophrenic angle, a classic sign of pleural effusion.
The concave upper border of the opacity, known as the meniscus sign, confirms the presence of fluid in the pleural space.
These combined features are the hallmark radiological presentation of a pleural effusion.

Option B: Right-sided pneumonia would present as a consolidation or infiltrate within the lung tissue on the right side, often with air bronchograms. The image shows a fluid collection outside the lung on the left side.
Option C: Pericarditis itself is not visible on a standard X-ray. If it leads to a significant pericardial effusion, the heart silhouette may appear enlarged and globular (like a 'water bottle'), which is not the case here. The abnormality is in the pleural space, not the pericardial sac.
Option D: Bronchiectasis involves the permanent dilation of airways. On an X-ray, this appears as thickened bronchial walls, seen as parallel 'tram tracks' or ring shadows. These findings are not present in the given image.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Radiological interpretation of common thoracic disorders, specifically pleural effusion as background academic context rather than a clinical decision trigger.
Recognizing pleural effusion on an X-ray is a critical skill for nurses to anticipate patient needs and potential interventions.
A nurse observing these signs should prioritize respiratory assessment, including oxygen saturation, work of breathing, and lung sounds (which would be diminished or absent over the effusion).
The nurse should prepare for potential diagnostic or therapeutic procedures, such as a thoracentesis (pleural tap), by ensuring informed consent is obtained and necessary equipment is available.

How to Approach the Question

First, systematically examine the chest X-ray. Check the airway, bones, cardiac silhouette, diaphragm, and lung fields (the 'ABCDE' approach).
Focus on the lung bases and costophrenic angles. Note that the right angle is sharp, while the left is obscured.
Identify the key abnormal finding: a dense opacity at the left lung base with a concave upper border.
Correlate this finding with the classic radiological signs of the conditions listed in the options.
Pleural effusion is defined by fluid blunting the costophrenic angle and forming a meniscus, which directly matches the image.
Rule out the other options by confirming their characteristic signs (e.g., consolidation for pneumonia, tram tracks for bronchiectasis) are absent.

Concept Tested & Keywords

Concept Tested: Radiological interpretation of common thoracic disorders, specifically pleural effusion.
Stem keywords: X-ray, disorder, chest
Lead-in keywords: Identify
Clinical cues: The image is a chest X-ray showing abnormal findings in the left lung base.

QKO5KbZ3ZEub_uqLfaq5Xe

E6 Medicine Davidson Principles Practice 24e p. 583-585

Practise the full Combined AIIMS - 2020 (Jodhpur, Bhopal, Patna, Raipur)

Attempt every question from this paper in a timed mock, then review the full solution for each one.