The gauge on a G cylinder of O2 reads 800 psig. About how long would the contents of this cylinder last, until completely empty, at a flow rate of 4 1/2 Lpm?

During aerosol drug delivery using an SVN set at 6 Lpm input flow, a patient ask that the head of the bed be lowered to a semi-fowler’s position. Immediately after doing so, you observe a significant drop in SVN aerosol output, despite there being at least 3 mL of medication left in the medication cup. What theory best describes the reason for the significant drop in aerosol output?

Which of the following statements is FALSE about a bourdon gauge?

After administering 12 puffs of MDI albuterol to an acutely ill adult asthmatic patient in the emergency department, there is no significant improvement in symptoms. Which of the following would you now recommend?

A 4.0-kg mass, initially at rest on a horizontal, frictionless surface, is struck by a 2.0-kg mass moving along the x axis with a speed of 8.0 m/s. After the collision, the 2.0-kg mass has a speed of 4.0 m/s at an angle of 37° from the positive x axis. What is the speed of the 4.0-kg mass after the collision?

What receptors cause a rapid shallow breathing pattern when stimulated by pulmonary disease?

All of the following increases the affinity of Hb for O2 EXCEPT:

In a healthy individual stimulation to increase ventilation des not occur until the PaO2 falls below what level?

An average 150-Lb man is breathing at a rate of 17 with a tidal volume of 45mL. By estimation, what is his approximate alveolar ventilation?

If a patient has a Vt of 370mL and a respiratory rate of 20 breaths/min, what is the minute ventilation?