Question
Type of stridor seen in obstruction of site as marked by a box shown in photograph below is ?
A. Inspiratory stridor.
B. Biphasic stridor.
C. Expiratory stridor.
D. None of the above.
Show Answer
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Correct Answer » C
Explanation
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Ans;C. Expiratory Stridor.
Tracheobronchial obstruction is seen in the image.
Stridor
It is an abnormal, high-pitched sound produced by turbulent airflow through a partially obstructed airway .
- Inspiratory stridor – obstructive lesions of supraglottis or pharynx
- Expiratory stridor – obstructive lesions of thoracic trachea, primary and secondary bronchi
- Biphasic stridor – lesions of glottis, subglottis and cervical trachea
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