A patient with a history of asthma presents to the ED in severe respiratory distress and increased accessory muscle use. Vital signs are heart rate 110/min, respiratory rate 32/min and SpO2 of 88% on room air. Bilateral expiratory wheezes are heard on auscultation. The respiratory therapist should recommend initiating

When auscultating breath sounds, the EMT should recognize rhonchi when he hears which of the following sounds?

A) Rattling-like noises that decrease when the patient coughs B) Crowing-like sounds that are accompanied by a high-pitched cough C) High-pitched whistling-like noises heard more on expiration D) Crackling-like noises that are heard in the upper portion of the lung

Which of the following are true about air-entrainment systems?

1. Their FiO2 values are directly proportional to their total flow. 2. They can provide variable FiO2 values under some clinical conditions. 3. They always deliver O2 concentrations less than 100%. 4. They yield a set FiO2 only if their flow exceeds the patient's. a. 1 and 3 only b. 1, 2, and 3 only c. 3 and 4 only d. 2, 3, and 4 only