You are first on the scene of a 61-year-old female in need of assistance with her respirations. you have a pocket mask with supplemental oxygen. how can you determine that your artificial ventilation is effective?
a. patient's skin color remains the same.
b. patient's pulse returns to normal.
c. you are assisting respirations at 10 breaths per minute.
d. you assure oxygen is being delivered at 15 liters per minute.

What are hormones? a. they are minerals needed for proper bone formation. b. they are the parts of the body targeted by endocrine glands. c. they are substances needed for muscle and nerve activity. d. they are substances released by endocrine glands.

Does the weight loss program have practical significance? a. no, the program is not practically significant because the results are likely to occur even if the weight loss program has no effect. b. yes, the program is practically significant because the results are too unlikely to occur by chance. c. yes, the program is practically significant because the amount of lost weight is large enough to be considered practically significant. d. no, the program is not practically significant because the amount of weight lost is trivial.

Me d: which system contains the heart, blood, and blood vessels? a. muscular b. circulatory c. respiratory d. digestive which system contains the pituitary, adrenal, and thyroid glands? a. respiratory b. circulatory c. endocrine d. reproductive