05-13-2014, 02:56 AM
For this q, I remember the mnemonic RALS from FA and I tried to apply it and picked Right main stem. But it's not correct. 
( Why am I wrong?
-----------------------------------------------
A 5-year-old boy with asthma is brought to the physician because of a 3-month history of recurrent cough, intermittent wheezing, and difficulty breathing. He has been admitted to the hospital twice for pneumonia during the past 12 months. He is at the 60th percentile for height and the 50th percentile for weight. His respirations are 25/min. Wheezing and crackles are heard between only the fourth to the sixth intercostal spaces on the right side of the chest. Diminished tactile fremitus and dullness are present over the right anterior section of the chest between the 4th and 6th ribs. Results of a PPD test are negative. A lateral chest x-ray shows a wedge-shaped density extending anteriorly and inferiorly from the hilum. A CT scan of the chest is most likely to show obstruction of which of the following bronchi?
A
)
Left main-stem
B
)
Left upper lobe
C
)
Right lower lobe
D
)
Right main-stem
E
)
Right middle lobe
( Why am I wrong? -----------------------------------------------
A 5-year-old boy with asthma is brought to the physician because of a 3-month history of recurrent cough, intermittent wheezing, and difficulty breathing. He has been admitted to the hospital twice for pneumonia during the past 12 months. He is at the 60th percentile for height and the 50th percentile for weight. His respirations are 25/min. Wheezing and crackles are heard between only the fourth to the sixth intercostal spaces on the right side of the chest. Diminished tactile fremitus and dullness are present over the right anterior section of the chest between the 4th and 6th ribs. Results of a PPD test are negative. A lateral chest x-ray shows a wedge-shaped density extending anteriorly and inferiorly from the hilum. A CT scan of the chest is most likely to show obstruction of which of the following bronchi?
A
)
Left main-stem
B
)
Left upper lobe
C
)
Right lower lobe
D
)
Right main-stem
E
)
Right middle lobe