Air consists of about how much oxygen?
A. 16 percent
B. 21 percent
C. 26 percent
D. 31 percent
B
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The human body can survive for several _______ without food
a. hours b. days c. weeks d. months
Axons that have myelin sheaths transmit action potentials:
a. Faster than unmyelinated axons b. Slower than unmyelinated axons
A patient arrives in the emergency department via ambulance following rescue from a house fire. The instrument that would be most appropriate to assist the respiratory therapist in assessing this patient's oxygenation status is which of the following?
a. Capnograph b. Pulse oximeter c. Calorimeter d. CO-oximeter
An asthma patient presents with symptoms of decreased breath sounds with no wheezing, and a PaCO2 of 54 mmHg. What is the likely diagnosis?
A) acute respiratory distress syndrome (ARDS) B) respiratory failure C) bronchiolitisD) cystic fibrosis