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?

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?

An ideal heat-moisture exchanger (HME) should have an efficiency rating of at least which of the following?

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?

When a Hb molecule accumulates excessive amounts of HCO3, it is expelled from the cell in exchange for Cl. What is this called?

Calculate the approximate PAO2 given the following conditions (assume R = 0.8): FiO2 = 0.40; PB = 770 mmHg; PACO2 = 31 mmHg

According to the Bohr effect, when the pH drops, what happens?

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?

What is the rationale for the nurse using the Z-track method when administering an intramuscular (IM) corticosteroid injection?

A nursing student is caring for a newborn whose mother is breastfeeding. The mother asks, “How does breastfeeding help protect my baby from infections?” Which type of immunity will the nursing student describe?