Which statement about stage I of the inflammatory process is true?
a. Vascular changes occur, including dilation of blood vessels and capillary leak.
b. White blood cells (WBCs) secrete chemicals that trigger resolution of pain and swelling.
c. The body prepares to replace scar tissue with healthy tissue to maintain function.
d. An exudate called pus is formed and white blood cell levels are four to five times above normal.
A
Stage I of the inflammatory process involves WBC and blood vessel changes. Injured tissues and WBCs release mediators. Each mediator affects tissues differently. Some act on blood vessels, causing changes that include dilation and capillary leak. Blood plasma leaking into the tissues causes swelling and pain. Formation of exudate occurs during stage II.
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