When using a speaking valve in mechanically ventilated patients, an air leak may require careful and periodical adjustments of the ____, PEEP, and alarm settings.
A. expiratory reserve volume
B. inspiratory reserve volume
C. minute volume
D. tidal volume
Answer: D
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The formation of trigger points is due to all but:
a. Excessive acetylcholine release b. Sustained muscle relaxation c. Decreased energy production d. Ischemia
Need for prophylactic vaccination with diphtheria-tetanus-pertussis combined vaccine
A) V06.1 B) V06.2 C) V06.3 D) V06.4
The dimensions of the occlusal are the opposite of the maxillary molar because the mandibular first molar is wider from:
A. mesial to distal B. buccal to lingual C. mesial to lingual D. buccal to distal
A car strikes a tree causing the passenger to strike his forehead against the dashboard. After the impact, the brain bounces back and forth within the skull. Based on the anatomy and physiology of the skull, which one of the following is TRUE?
A) The frontal bone is the thinnest portion of the skull and most easily fractured. B) The brain will not be injured since the flexibility of the skull will absorb the force of the impact. C) The brain will not be injured unless an object on the dashboard penetrates the skull. D) The ridges of the basilar skull can injure the brain as it moves back and forth.