An intubated patient with chronic obstructive pulmonary disease (COPD) is breathing on pres-sure support ventilation (PSV) 13 cm H2O with positive end-expiratory pressure (PEEP) 5 cm H2O and a flow cycle setting of 25%
The pressure-time scalar shown in the figure is evaluated by the respiratory therapist. What action should the respiratory therapist take at this time?
a. The patient and ventilator are synchro-nized and no change should be made.
b. The inspiratory flow rate should be in-creased to match the patient's needs.
c. The flow cycle setting should be increased to allow more time for exhalation.
d. The pressure support setting should be in-creased to match the peak pressure.
ANS: C
The slight rise at the end of inspiration on the pressure-time scalar in the figure shows that the patient is actively exhaling before the flow-cycle criterion is being met. This problem can be avoided by using a higher flow-cycle criterion that will end inspiration sooner and allow for longer expiratory time to decrease air trapping.
You might also like to view...
A 26 year-old seasonal worker from South America came to the ER with a history of a dry, hacking blood-tinged cough, fever, chills, and loss of appetite. The chest x-ray showed cavitary lesion in the right upper lobe
After a week in the hospital, the sputum culture shows the present of acid-fast stained organisms. Which of the following medications would you recommend for this patient at this time? 1. Ceftizoxime 2. Isoniazid 3. Rifampin 4. Ethambutol a. 1 only b. 2 and 4 only c. 1, 2, and 3 only d. 2, 3, and 4 only
The heart sends returned blood to the lungs, where oxygen is exhaled and carbon dioxide is inhaled.
Answer the following statement true (T) or false (F)
What is the role of diphenhydramine in anaphylaxis?
A) Relaxes the smooth muscle in the lungs B) Causes constriction of peripheral blood vessels C) Reduces wheezes in the upper airways D) Prevents histamine from binding to histamine receptors
The interventricular foramina connects the third and fourth ventricle
a. True b. False