Leukemia is a form of cancer in which lymphocytes divide uncontrollably, often crowding out red blood cells in the blood vessels. Which of the following correctly describes where cancerous lymphocytes could develop and how they would enter the bloodstream?

1. They develop in the lymph nodes and are deposited in the heart.
2.They develop in the lymph nodes and are deposited in the subclavian veins.
3.They develop in the lymph and are deposited in the capillary beds.
4.They develop in the lymph and are deposited in the subclavian artery.

Aclient with pernicious anemia asks why she must take vitamin b12 injections for the rest of her life. what is the nurse's best response? a. "the reason for your vitamin deficiency is an inability to absorb the vitamin because the stomach is not producing sutficient acid." b. "the reason for your vitamin deficiency is an inability to absorb the vitamin because the stomach is not producing sufficient intrinsic factor." c. "the reason for your vitamin deficiency is an excessive excretion of the vitamin because of kidney dysfunction." d. "the reason for your vitamin deficiency is an increased requirement for the vitamin because of rapid red blood cell production."