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Airway resistance (Raw) of 2.4 cmH2O/L/sec is measured for a patient receiving mechanical ventilation. The respiratory therapist should suspect that the patient may have

Ozone can be ‘good’ or ‘bad’, pending on its source. Tropospheric ozone, typically man-made and a component of photochemical smog, is considered ‘bad’, whereas stratospheric ozone, an essential component that screens out UV radiation in the upper atmosphere, is considered ‘good’.

A 65-year-old male with a history of long-standing hypertension presents to the emergency department with acute shortness of breath. Chest radiograph shows diffuse, fluffy bilateral infiltrates, and laboratory testing reveals a B-type natriuretic peptide (BNP) level of 980 pg/mL. Which condition is most likely?

Gases and particulates represent the major forms of air contaminants. 

A 72-year-old male (60 kg) is receiving assist/control volume-control ventilation with VT 500 mL, rate 14/min, PEEP 8 cmH₂O, and FiO₂ 0.60. Breath sounds are diminished at the lung bases. Arterial blood gases are: pH 7.41, PaCO₂ 39 mmHg, PaO₂ 80 mmHg, SaO₂ 96%. Which action should the respiratory therapist take?

Airway resistance (Raw) of 2.4 cmH2O/L/sec is measured for a patient receiving mechanical ventilation. The respiratory therapist should suspect that the patient may have

A chest radiograph shows a left-sided meniscus with blunting of the costophrenic angle. Physical examination reveals decreased breath sounds and dull percussion over the left lung. Which intervention should the respiratory therapist recommend?

An asthmatic patient  with increased RAW is on CMV. What I:E ratio is the most appropriate for this patient to prevent air trapping

A hematoma begins to form at the right radial artery site immediately after an arterial blood gas sample is drawn. What should the respiratory therapist do first?

A trauma patient is placed on a non-rebreather mask at 8 L/min after presenting with acute respiratory distress. During assessment, the respiratory therapist observes that the reservoir bag completely collapses during inspiration. What is the most likely cause of this issue?