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Why is FEV1 low in asthmatics?

Updated: 12/22/2022
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Q: Why is FEV1 low in asthmatics?
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Asthmatics tend to have their smaller sirways narrowed by smooth muscle constrrictionthickening of the walls and mucous secretion How would this affect vital capacity FEV1 and MVV?

Vital capacity may not be reduced in asthmatics although it will take a substantial amount of effort (work) for the same volumes of vital capacity because of the increased airway resistance. FEV1 and MVV will generally be lowered because of the increased airway resistance necessitating extra muscular effort.


How did changing the radius effect FEV1?

Decreased the FEV1 %


What other conditions do asthmatics suffer from?

Asthmatics suffer from asthma.


What was the FEV1 at a radius of 5.00 mm?

The FEV1 (%) at a radius of 5 mm is 73.9% (3541/4791 X 100%).


What is the difference between the FEV1 and peak expiratory flow?

FEV1 is the peak during the first second of exhalation only.


Can asthmatics have greyhounds?

no


What does FEV1 stand for?

Forced expiratory volume


How much of an increase in FEV1 do you think is required for it to be considered significantly improved by the medication?

FEV1 is an index that is used to determine how much restrictive or obstructive lung disease is present in a person's lungs. If the FEV1 level is 70% or less then it is standard practice for medication to be given.


What animals are suitable for asthmatics?

parakeets


How can asthmatics become champion athletes?

Yes :)


Can steroid -dependent asthmatics take barbiturates?

yes


FVC and FEV1 measure what function?

Forced vital capacity (FVC) measures the total volume of air exhaled forcefully after a maximal inhalation. Within this total volume exhaled, the forced expiratory volume (FEV1) is measured during the 1st second of this manoeuvre.