Assuming that pressure remains constant if the radius of a bronchial airway through which gas flows at a rate of 400 l/min is reduced to one half of its original size the flow through the bronchial airway would change to A.10L/min. B.25L/min. C.100L/min. D.200L/min.

Suppose a person has a total lung capacity of 5,800 mL,a residual volume of 1,200 mL, an inspiratory reservevolume of 2,400 mL, and an expiratory reserve volume of1,400 mL. Calculate his tidal volume.

WHich of the following finding at the apex best explains why ventilation-perfusion ratios are higher at the apex than base of a normal upright lungs? a. Alveolar Po2 is higher b. Alveoli contains more elastin and less collagen c. Alveoli have less surfacant d. Change in pleural pressure with each breathe is higher e. Perfusion is lower

A spontaneously breathing patient has a normal PaCO2 of 40 mm Hg, a minute ventilation (VE) of 6 L/min, and a VD/VT ratio of 35% (0.35). Then the patient develops a pulmonary embolus (PE), blocking blood flow to a significant number of ventilated avleoli. Consequently, the measured VD/VT increases to 65% (0.65). 1. Calculate the alveolar ventilation associated with teh original PaCO2 of 40 mm Hg. 2. To maintain the same PaCO2 of 40 after the embolus occurs, what change must occur in total minute ventilation (VE)?

Please use this formula Va=(Vt-Vd)×RR TV=Vt

Using the data from the table below, calculate Total Lung Capacity and Total Pulmonary Ventilation. Include the correct units. Tidal Volume 0.5 L Inspiratory Reserve Volume 3.0 L Expiratory Reserve Volume 1.1 L Residual Volume 1.2 L Ventilation Rate 13 breaths/min

What type of artificial tracheal airway should be used for the following clinical situations? If more than one option is indicated, include all appropriate choices with an explanation. A. Patient in cardiac arrest: B: Patient with a suspect C1 fracture: C. 3-year old patient with epiglottis: D. Patient with paralyzed vocal cords:

As lung compliance decreases, the plasma HCO3 in cells moving from the lungs to the heart will: a. increase b. decrease c. stay the same

Match the aif volumes with their definitions