Exam 2: Ventilation

Which of the following would shift the volume-pressure curve to the right? I.Acute asthma episode II.Pneumothorax III.Pleural effusion IV.Pulmonary edema

What is the average respiratory rate for an adult at rest?

What is derived when the pressure difference between the mouth and alveoli is divided by the flowrate?

In the upright position,which portion of the lungs has the most negative pleural pressure?

What is the general term for a pressure difference between two points in a system?

At what point in the respiratory cycle is the equilibrium point reached? I.Inspiration II.End-inspiration III.Expiration IV.End-expiration

Which of the following are periods of no gas flow during negative pressure ventilation? I.Inspiration II.End inspiration III.Expiration IV.End expiration

What is the term for the difference between the alveolar pressure and the body surface pressure?

In the presence of restrictive lung disorders,how do patients typically offset the decreased time constants?

When Poiseuille's law is rearranged for pressure,what adjustment must be made in driving pressure to maintain the same flowrate when the radius of the tube is reduced by 50% ?

Which gas law states that at constant temperature,a volume of gas varies inversely proportional to its pressure?

What would the minute alveolar ventilation equal if a 6 ft tall,170 lb male has a VT of 550 mL and a respiratory rate of 11 breaths/min?

In a flail chest,which pressure gradients are responsible for the inward movement on inspiration of the section of unattached ribs? I.Transpulmonary II.Transmural III.Transthoracic IV.Transrespiratory

At what point in the ventilatory cycle would the intra-alveolar pressure be higher than the atmospheric pressure?

Who is credited with the following equation : P = (2ST)/r ?

What is the term for alteration of the ventilatory pattern to minimize dead space ventilation?

How does the normal adult's respiratory pattern change when lung compliance decreases?

If a patient who generates an intrapleural pressure of -4 mmHg to inhale 450 mL experiences inflammation and bronchospasm that reduce the radius of the bronchial airways to one-half of their original size,what pressure must the patient generate to inhale the same tidal volume?

What instrument is used to measure Pₐtm ?

A 5 ft tall female who weighs 300 lb requires mechanical ventilation.If the prescribed tidal volume for this patient's condition is 6 mL/kg IBW,where should the set tidal volume be set?