_______ are small V-shaped staples that close down and occlude a vessel or duct

A new EMT asks you why the elderly are at a higher risk for developing pneumonia, as compared to those of a younger age. You inform him that the elderly are more susceptible to respiratory infections because of a(n):

A) impaired swallowing of saliva. B) decreased alveolar gas exchange. C) decreased cough reflex. D) hardening of the major arteries.

After 2 minutes of continuous positive airway pressure (CPAP) at 4 cmH2O, you see no improvement in the respirations or SpO2 level. You would:

A) stop the CPAP and begin to provide positive pressure ventilation. B) place an oral airway and continue the continuous positive airway pressure. C) continue CPAP as is and monitor the patient for another 2 minutes. D) increase the continuous positive airway pressure to 20 cmH2O.