Question

The lung's vital capacity of a 6 year old girl is 2 L and her lung's...

The lung's vital capacity of a 6 year old girl is 2 L and her lung's tidal volume is 7 mL / kg. Her breathing rate is 30 breaths per minute and her heart rate is 80 beats per minute. Her weight is 20 kg and height is 120 cm. What is her minute respiratory volume, in liters? (do not put units in your answer).

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Answer #1

Minute Respiratory Volume(MRV)=Tidal Volume(TV)*Breathing Rate(BR)

Tidal Volume =7mL*20kg=140mL and the Breathing Rate is 30

So,now,MRV=TV*BR

=140*30

=4200

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