A postoperative patient complaining of dyspnea is found to have tachypnea and tachycardia, and is somewhat confused. Breath sounds reveal end inspiratory crackles in both lung bases. An arterial blood gas is drawn and reveals the following: pH 7.49; partial pressure of carbon dioxide (PaCO2) 33 mm Hg; partial pressure of oxygen (PaO2) 51 mm Hg; arterial oxygen saturation (SaO2) 87%; bicarbonate (HCO3-) 25 mEq/L while on a 30% air entrainment mask. The most appropriate respiratory therapy intervention includes which of the following?

What is the primary receptor used by HIV to enter host cells?

What is the primary receptor used by HIV to enter host cells?

Tachypnea in the newborn is defined as a respiratory rate greater than what level?

Patient’s RR is 12 breaths/min, PaCO2 is 60 mm Hg. If a PaCO2 of 40 were desired, the RR be set at what value?

Since blood pressure is significantly lower in the venous system, what two mechanisms return blood to the heart?

A status asthmaticus patient is receiving mechanical ventilation and the following ABGs have been recorded:pH             7.20PaCO2       67 torrPaO2          63 torrThe RT should recommend which of the following?

A patient is performing PEP therapy at 25 cmH2O for the past 30 minutes without and increase in sputum production and produces 30 mL of sputum a day without PEP therapy. What should the RT consider doing at this time?

All of the following are examples of a teratogin except:   

A major factor that determines the success of tissue and organ transplantation is the histocompatibility between donor and recipient. (a) What does it mean for the donor and recipient to be histocompatible? (b) Specifically, how is histocompatibility determined? (c) Why is histocompatibility important for the success of tissue and organ transplantation? Be specific!