A patient has been participating in Pulmonary Rehabilitation for the past 5 weeks. The patient has recorded the results of his 6 minute walk test each week. The results indicate a steady increase in distance over the 5 week period. These results are consistent with

The FRC measured by body plethysmography is 30% larger than that measured by helium dilution. This difference is best explained by

The respiratory therapist is in charge of transporting a patient with multiple trauma to a regional trauma center in a fixed wing aircraft. Which of the following should the therapist be most concerned about during the transport?

A 2-year-old child with croup has been intubated for 4 days with a 4 mm ID uncuffed endotracheal tube. Heated aerosol at an FIO2 of 0.30 has been delivered to the patient. The physician asks the respiratory therapist to evaluate the patient for possible extubation. Which of the following would most likely indicate that the patient is ready for extubation?

Which of the following formulas will determine the amount of physiologic deadspace for a patient?

What is the normal VD/VT ratio for a patient breathing room air?

A patient is being ventilated with a high frequency ventilator. The results of an arterial blood gas analysis are as follows: pH 7.29PaCO2 68 torrPaO2 73 torrHCO3- 25 mEq/LBE +1 mEq/L The respiratory therapist should increase the

A patient is receiving continuous mechanical ventilation through an oral endotracheal tube. The respiratory therapist notes that the high pressure alarm sounds continuously during inspiration and the patient appears to be biting down on the ET tube. Which of the following should the therapist recommend?

A 75 kg (165 lb) male is being mechanically ventilated at the following settings: Mode VC, SIMVSet Rate 12 br/minTotal Rate 32 br/minTidal Volume 600 mLPIP 35 cm H2OExhaled minute volume 9.2 LFIO2 0.45PEEP 8 cm H2O The following patient information is available: pH 7.36PaCO2 45 torrPaO2 89 torrHCO3- 22 mEq/L The respiratory therapist should

Following administration of oxygen, what additional therapy should the respiratory therapist recommend for a patient with decompression sickness?