What mode of mechanical ventilation is designed to optimize ventilation by reducing alveolar collapse while using small tidal volumes in patients with ARDS?
a. Inverse ratio ventilation
b. High-frequency ventilation (HFV)
c. Intermittent mandatory ventilation
d. Airway pressure-release ventilation
ANS: B
HFV was designed to simultaneously maintain adequate ventilation and reduce alveolar collapse through ventilation with high expiratory lung volumes and rapid (up to 300 breaths/min), small tidal volumes (3 to −5 ml/kg).
You might also like to view...
In some cases, the ST changes are transitory but not evolutionary, and in those cases, the Paramedic merely notes that the 12-lead ECG has ____.
A. prolonged QT intervals B. ST segment elevations C. ST segment depression D. nonspecific ST changes
Density is the ____ of a substance under specified conditions of pressure and temperature.
A. volume per unit mass B. mass per unit volume C. mass D. volume
Amy is a 9-year-old patient who has a high fever, headache, and an itchy rash. Although Amy usually has a good appetite, her mother says she has not been hungry for the last few days. The rash is starting to blister. Which of the following diseases might you suspect?
A. Cholera B. Chickenpox C. Hepatitis D. Rubella E. Diphtheria
When you introduce yourself to your patient and ask why 9-1-1 was called, the patient looks at you, shakes your hand, and answers your questions appropriately. From these findings, you can gather that the patient:
A) has not experienced a traumatic injury. B) has a Glasgow Coma Scale score of 15. C) will likely not require medication therapy. D) does not have a life-threatening condition.