This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S., Subject name: Medicine
Palpatory thud, audible slap is seen in - 
Select and explain. 
A. Tracheal foreign body, B. Bronchial foreign body, C. Laryngeal foreign body, D. None
A: Tracheal foreign body
Answer: A: Tracheal foreign body 
Explanation: Ans. is 'a' i.e., Tracheal foreign body o A foreign body in trachea may move up and down the trachea between the carina andd the undersurface of the vocal cords causing "audible slap" and "palpatory thud". o Symptoms and signs of foreign bodies at different levels :# Larynx# Trachea