A Subject Has Her DLCOsb Measured as 10

Multiple Choice

A subject has her DLCOsb measured as 10.1 ml CO/min/mm Hg (STPD) ;her diffusing capacity measured by the DLCOrb is 9.1 ml CO/min/mm Hg (STPD) .These findings are consistent with:

A) Normal lung function
B) Normal difference in a subject with restriction
C) An improperly calibrated He analyzer
D) The inability to breath hold near TLC