Comprehensive Respiratory Therapy Exam Prep Questions Questions and Answers

Comprehensive Respiratory Therapy Exam Prep Questions Questions and Answers obstructive sleep apnea (OSA) cessation of airflow for at least 10 seconds during which there is continued effort to breathe. Central Apnea a lack of airflow for 10 seconds or more, but occurs w/o respiratory effort. hypopnea (high-poh-NEE-ah) a reduction of airflow of at least 30% from baseline lasting at least 10 seconds and associated w/ significant oxygen desaturation (3-4%). "a dull percussion note and bronchial breath sounds" after Dr. examines pts chest = pulmonary infiltrates, atelectasis or consolidation of the effected area of the chest examination. hyper-resonant percussion note is evidence of what? pneumothorax and/or emphysema (hyperinflation) When reviewing the chart of a pt who presents w/ evidence of acute pulmonary infection, which of the following laboratory studies would provide the most useful information? a) sputum culture and sensitivity b)blood culture c)sputum acid-fast stain d)sputum Gram stain Why will a sputum culture and sensitivity be used for evidence of acute pulmonary infection Sputum culture and sensitivity will provide not only what organism(s) is(are) growing in the lung, it will provide the drug(s) that are most effective in controlling the microbe. While reviewing the chart of a pt w/ lobar pneumonia, you note that the RR for the last 24 hrs has increased from 18 to 38/min. Which of the following is the most likely cause of the increased RR? A) Hypothermia B) Hyperkalemia C) Hypoxemia D) Metabolic Alkalosis C) Hypoxemia - both hypothermia and metabolic alkalosis depress respiratory drive, and would therefore tend to decrease the RR. Hypokalemia causes muscle weakness, which also could diminish respiratory effect. On the other hand, hypoxemia (commonly seen in pneumonia) stimulates breathing. Indeed, tachypnea is one of the signs associated w/ hypoxemia. Which of the following airway mngmt techniques can help decrease the incidence of VAP? A) aspirating subglottic secretions B) using the nasal route for intubation C) inflating the ET tube cuff to 35 cm H2o D) using an uncuffed endotracheal tube A) Aspirating subglottic secretions