10. Which of the following is a primary function of the cardiovascular system? A. To deliver oxygen within the blood to body tissues.
B. To circulate blood carrying waste to organs that excrete that waste.
C. To deliver hormones within the blood to body tissues.
D. All of the above

Which of the following substances would you expect to find in the blood, and not in the lymph? selected answers: calcium glucose calcium glucose estrogen oxygen fatty acids water answers:

What can friends provide to affect mental health positively? a)peer pressureb)challengesc)conflictd)companionship

You are assessing an 86-year-old postoperative patient who has an unexpressive, stoic demeanor. when you enter the room, the patient is curled into the fetal position and your assessment reveals that his vital signs are elevated and he is diaphoretic. you ask the patient what his pain level is on a 0-to-10 scale that you explained to the patient prior to surgery. the patient indicates a pain level of “three or so.” you review your pain-management orders and find that all medications are ordered prn. how would you treat this patient's pain?