1. The percentage of Vital capacity that can be expired in one second is decreased in...

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Medical Sciences

1. The percentage of Vital capacity that can be expiredin one second is decreased in someone with which of thefollowing?
A. Someone with an increased comliance
B. Someone with bronhoconstriction
C. Someone with an incease in VO2 max
2. Which of the following does NOT influence the loadingreaction at the lungs?
A. Blood pH
B. The amount of hemoglobin in the blood
C. The p02 graident across the respiratory membrane
D. Pulmonary edema
3. Elevated body temperature, acidosis and/or anemiawill?
A. Increase the unloading reaction
B. Cause a left shift in the oxygen-hemoglobin dissoaciationcurve
C. Decrease Respiratory rate

Answer & Explanation Solved by verified expert

3.9 Ratings (438 Votes)

1ans option B someone with bronchoconstriction Explanation vital capacity that can be expired in the one second is known as forced expiratory volume in 1 secondFEV 1 FEV 1 is volume of forced vital capacity expired in 1st second of expiration It is decreased in obstructive lung diseases like bronchial asthma In bronchial asthma inspiration is normal but expiration is obstructedtherefore FEV1 decreases Bronchial asthma is characterized by bronchoconstriction and diameter of airways decreases causing increased resistance to the air flow eventually producing difficulty in breathing However inspiration is possible as See Answer

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