QuestionSBA
QuestionChoice
This is the expiratory reserve volume
10026957
b
1L
QuestionChoice
Vital capacity is equal to inspiratory reserve volume + tidal volume + expiratory reserve volume. Expiratory reserve volume is equal to functional residual capacity - residual volume (2500ml-1500ml=1000ml). Therefore, inspiratory reserve volume is equal to 4.5L - 0.5L - 1l = 3L
10026956
a
3L
QuestionChoice
This is equal to vital capacity - tidal volume. To calculate inspiratory reserve volume, expiratory reserve volume must also be calculated and then subtracted from vital capacity
10026960
e
4L
QuestionChoice
This is equal to vital capacity - tidal volume - residual capacity. The residual volume must be added to this to make an inspiratory reserve volume of 3L
10026958
c
1.5L
QuestionChoice
This is equal to vital capacity - tidal volume - residual volume. To calculate inspiratory reserve volume, expiratory reserve volume must be calculated first which is equal to functional residual capacity - residual volume
10026959
d
2.5L
Concept
Chapter
2693
5940
Respiratory physiology
Topic
132
Respiratory
17789
A 35-year-old is undergoing some pulmonary function testing.

His tidal volume is 500ml, his vital capacity is 4.5L, his functional redidual capacity is 2.5L and his residual volume is 1.5L.

Please calculate his inspiratory reserve volume
a