A patient has a bacterial pneumonia. What kills the invading bacteria?
a. Macrophages
b. Red blood cells
c. Polymorphonuclear leukocytes
d. Serum fluid
C
Polymorphonuclear leukocytes enter the alveoli to engulf and kill the invading bacteria. Serum fluid and red blood cells will be found in the alveoli but do not kill the bacteria. Macrophages will be found in the alveoli and remove any cellular and bacterial debris.
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A thickening and loss of elasticity of the arterial walls is known as:
a. arteriosclerosis. b. high blood pressure. c. angina pectoris. d. atherosclerosis.
When a helicopter must land on a grade (uneven ground), you should:
A. approach the aircraft from the uphill side. B. approach the aircraft from the downhill side. C. attempt to approach the aircraft from behind. D. move the patient to the aircraft as soon as it lands.