lets do some QQQQQ's???????? - wwjd

[ArchivalUser]

1. A patient with reduced VC, FRC, and RV is found to have a normal
pH. A tentative diagnosis of diffuse interstitial fibrosis is made. Which of
the following characteristics are consistent with this disease?
a. An increase in lung compliance
b. A decrease in respiratory rate
c. An increase in the V/Q ratio
d. A decrease in PaCO2
e. An increase in the FEV1/FVC ratio


2. A 45-year-man has decreased libido and decreased sexual function. A
large pituitary tumor is found. His prolactin is 20 (less than 15). Testing of
his pituitary-gonadal axis most likely will show
a. Normal testosterone and low LH
b. High testosterone and normal LH
c. Low testosterone and low LH
d. Normal testosterone and normal LH
e. Low testosterone and high LH

[ArchivalUser]

2.ee??

[ArchivalUser]

a and e

[ArchivalUser]

1. The answer is e. Interstitial lung disease is a
restrictive-type lung disease in which all the lung volumes, including VC,
FRC, and RV, are reduced. The decrease in lung volumes is caused by a
decrease in lung compliance. The low compliance produces a high recoil
force so that a higher than normal fraction of the forced vital capacity
(FEV1/FVC) can be exhaled during expiration. The normal pH is consistent
with a normal alveolar ventilation. Because lung compliance is reduced, the
normal alveolar ventilation is maintained with a breathing pattern consisting
of a high rate and a low volume.


2-2. The answer is c. The patient has a common
presentation for secondary hypogonadism. The large tumor is inhibiting
LH secretion with consequently low testosterone secretion. No other pattern
fits this clinical presentation.

[ArchivalUser]

e, c.