Functional residual capacity (FRC)
(a)
measurement by the helium dilution technique gives a
higher
value than that given by body plethysmography
(b)
is equal to total lung capacity minus the reserve volume
(c)
is increased by changing from the erect to the supine posture
(d)
is reduced during pregnancy
(e)
is decreased in old age
(a) false (b)
false (c)
false (d)
true (e)
false
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