Data Tables Resting idal volume (TV)-(cc) Breath period (BrP) - (sec) Respirator

Question

Data Tables Resting idal volume (TV)-(cc) Breath period (BrP) - (sec) Respiratory rate (RR) - (breaths /min) Minute Air Flow Rate (Umin) After exercise Cs 3,4%reorn5 /min 23,233 L/min Table 22-1: Breathing at rest and after exercise-Tidal volume and respiratory rate Lung Volumes (liters) Resting After exercise Tidal volume (TV)-see Table 1 above Inspiratory Reserve Volume (IRV) Expiratory Reserve Volume (ERV) Forced Vital Capacity (FVC) Forced Exp. Vol. at 1 second (FEV1) FEV1/FVC ratio Forced Exp.Vol. at 3 seconds (FEV3) FEV3/FVC ratio , 240 62 6acC " 96 cc 679 C 3,08 633 2-293 L c -63313,08 121-2, 243 33074c 193 3 2974:31931 939 2,24 Table 22-2: Forced expiration volumes at rest and after exercise Normal volume (ml) Male / Female Respiratory Volume/capacityDescription, or formula for calculation Volume measured on inhalation or exhalation in quiet respiration 500/390 Tidal volume Volume remaining in lungs after maximum exhalation; cannot be measured in vivo 1200/930 Alveolar volume (residual vol) Volume of bronchial tree and trachea; volume in avg adult; not measured in vivo 150/120 Dead air space volume 3000/2300 Inspiratory reserve volume Expiratory reserve volume Vital capacity Total lung capacity 1200/930 4600/3600 6000/4700 Table 22-3: Normal lung volumes 15

Explanation / Answer

Hi,' The psychological stress can have adverse effects of physiology of the body. In this case, the stress has caused the hyperventilation. In hyperventilation the person will start excessive breathing. This results in rapid drop on CO2 in blood below physiological levels. The excessive breathing causes the person to feel less air intake ,though in reality they have 98% of their hemoglobin saturated with oxygen. The drop in pH in blood causes alkalosis. This alkalosis leads to changes in neuron firing, causing parethesia, dizziness..etc. Breathing into paper bad would help to rebreath the air and restore th CO2 levels.

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