Choose the best answer for the following questions.

1			The clumping together of red blood cells is referred to as:
			A)	leukocytosis
			B)	erythremia
			C)	agglutination
			D)	anoxia
2			The RBC manual count is performed using which of the following?
			A)	Hemacytometer
			B)	Lancet
			C)	Centrifuge
			D)	Automated cell counter
3			An elevation of white blood cells is called:
			A)	polycythemia
			B)	leukocytosis
			C)	erythremia
			D)	anemia
4			The last immature stage of a red blood cell, which makes up approximately 1 percent of the circulating red blood cells, is the:
			A)	reticulocyte
			B)	leukocyte
			C)	erythrocyte
			D)	nucleated red blood cell
5			An abnormally low white blood cell count is common in patients with a potentially fatal form of anemia that could be caused by a deficiency of vitamin B12 called:
			A)	erythremia
			B)	polycythemia vera
			C)	aplastic anemia
			D)	pernicious anemia