Question

Nala has a inspiratory capacity of 3600 mL. Their vital capacity is 5000 ml. What is their expiratory reserve volume? 1400 ml
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Answer #1

The right answer 1st option or " 1400 mL"

Explanation

According to the question

Inspiratory capacity or IC = 3600mL

Vital capacity or VC = 5000mL

We have to calculate the Expiratory reserve Volume or ERV .

according to the formulla

VC=TV+IRV+ERV ...... (1) and

IC= TV+IRV ...... (2)

From ..(2) formulla we can say that

TV=IC-IRV ..... (3)

We put the TV value in formulla ..(1)

VC= IC-IRV+IRV+ERV

VC=IC+ERV

So, ERV = VC-IC

ERV= ( 5000-3600)mL

or,ERV= 1400mL

here TV= Tidal volume

IRV= Inpiratory reserve Volume .

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