NR 601 Week 2 Test Your Knowledge

NR 601 WEEK 2 QUIZ Week 2: Test Your Knowledge Score for this quiz: 10 out of 10 Submitted Jan 11 at 1:17pm This attempt took 3 minutes. How many hours per day of supplemental oxygen therapy has been shown to reduce mortality associated with COPD? 15 hours 6 hours 23 hours 10 hours Home oxygen therapy has been shown to decrease mortality. 1-2 liters of oxygen/min for 15 hours/day will maintain SaO2 of 90% or greater. Dunphy p. 414. The nurse practitioner student is assessing a patient with chronic obstructive pulmonary disease (COPD). This patient would be most likely to demonstrate which of the following lung changes? permanently deflated alveoli increased surface volume for gas exchange decreased residual volume hyperinflation of the lungs Hyperinflation of the lungs is due to the increased total lung capacity present with obstruction. Week 2: Spirometry video- Kahn academy, Dunphy et al p. 399 Which of the following is total volume of air a patient is able to exhale in the first second, during maximal effort? FEV 1 FEV1/FVC ratio TLC FVC The FEV1 which is the forced exhalation volume in the first second of the forced exhale. The FEV1 measures how quickly full lungs can be emptied. The FVC is total volume of air expelled and is a measurement over time. The FEV1 to FVC ratio provides information on airflow limitation. It is a percentage of maximum inspiration expired in one second. TLC, total lung capacity is the total amount of air in the lungs after taking the deepest breath possible. ** Patients with chronic obstructive pulmonary disease (COPD) are often unable to fully exhale which can result in hyperinflation of the lungs and a greater total lung capacity. Week 2: Spirometry video - Khan Academy A 12% change from pre-bronchodilator to post-bronchodilator results indicate which of the following ? the obstruction is not reversible the patient has emphysema the patient has mild COPD the obstruction is