Medical MCQ-A patient sustains a knife wound through the right fourth intercostals space, 2 cm to the right of the sternum. The area most likely penetrated by the knife is the

A patient sustains a knife wound through the right fourth intercostals space, 2 cm to the right of the sternum. The area most likely penetrated by the knife is the

Right upper lobe of the lung

Right middle lobe of the lung

Right lower lobe of the lung

Right atrium of the heart

Question Category:

Unknown

Correct Answer:

Right middle lobe of the lung

Description:

The right border of the heart is approximately 1 to 2 cm to the right of the right border of the sternum; therefore, the knife probably did not hit the heart. The middle lobe of the right lung extends from the level of the fourth costochondral junction to the level of the fifth intercostal space. The middle lobe is most likely at the level of the fourth intercostal space.

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