osce prefinal exam
I have tried to answer some of the questions regarding case discussion of our patient 1. How to clinically differentiate between coarse and fine crepitations ? Ans- well, crepitations or crackles are adventitious respiratory sounds which occur when an obstructed airway due to accumulated secretions opens in inspiratory phase. The sudden opening of an obstructed airway causes an immediate re-equilibration of the pressures on both sides creating vibrations in the airway walls. Fine crackles -- A). having a short duration and a higher pitch, Often, fine crackles are repetitive, originate in the basal part of the lung, and not altered by coughing. B) Coarse crackles appear to be a longer duration and a lower pitch. There is no specific location from where coarse crackles primarily originate. They are often altered by coughing. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5834319/#:~:text=Bronchial%20b
