The presence of bright red blood in the stool is known as _____.?
A) ?melena
B) ?hematochezia
C) ?steatorrhea
D) ?hematemesis
B
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A client turns on their call light and reports his IV site is painful and seems to be leaking. Which action by the nurse is best?
A. Assess the site for any local tissue damage and remove the IV. B. Attempt to flush the IV site with 3 ml of NS. C. Elevate the client's arm on a pillow and re-secure the dressing. D. Place a tourniquet above the insertion site and cleanse the area with alcohol prep.
REM sleep is prompted by which structure of the brain?
A) the brain stem B) the hypothalamus C) the pons D) the pineal gland
In a frequency distribution table, the sum of the frequencies should equal ____.
A. half the total number of data values in the data set B. the sum of the first and last data value C. the total number of data values in the data set D. the average data value
C3 is cleaved to form C3a and C3b by C3 convertase. C3b is involved in all of the following EXCEPT:
a. altering vascular permeability b. promoting phagocytosis c. forming alternative-pathway C3 convertase d. C5 convertase formation