1. The respiratory therapist is conducting an interview on a patient who has just entered the emergency department. The patient states that he has difficulty breathing when he is lying down and sleeps with three pillows at night. This is indicative of which of the following breathing conditions? A. tachypnea B. orthopnea C. euthopnea D. dyspnea 2. A 24-year-old comatose woman enters the emergency department with the following arterial blood gases: pH 7.21 PaCO2 23 torr PaO2 65 torr HCO3 8 mEq/L Which of the following breathing patterns is this patient most likely exhibiting? A. Cheyne-Stokes B. Biot’s C. Kussmaul’s D. hypopnea 3. A patient is coughing up purulent secretions. This is an indication of which of the following? A. pleural effusion B. pneumothorax C. bacterial pneumonia D. hemoptisis