Question

1. which of the following is not true about capillaries?

a: they may be so small that
only one cell can pass through
b: they have sensitive nerve
endings
c: they link arterioles to
venules
d: they have walls permeable
to oxygen, glycose, and water

1. the roman numeral letter \l\ represents which of the following?

a: 100
b: 500
c: 25
d: 50

1. of the following medications, which would be contraindicated with

vitamin k therapy?
a: tylenol
b: coumadin
c: heparin
d: procardia

1. negative rh blood is found in:

a: 5% of the population
b: 10% of the population
c: 15% of the population
d: 20% of the population

1. which of the following medications would not be dispensed as a unit

dose?
a: compazine suppositories
b: verapamil capsules
c: cimetidine tablets
d: phenergan syrup

Explanation:

• Question 41: Capillaries are the smallest blood vessels. Red blood cells pass through them in single file. They connect arterioles to venules and have permeable walls for gas and nutrient exchange. However, they do not have sensitive nerve endings.
• Question 42: In Roman numerals, "L" represents 50. "C" represents 100, "D" represents 500, and there is no standard Roman numeral for 25 in the basic set.
• Question 43: Coumadin (warfarin) is an anticoagulant. Vitamin K is used to reverse the effects of warfarin. So, Coumadin is contraindicated with vitamin K therapy. Tylenol (acetaminophen) is a pain reliever, Heparin is an injectable anticoagulant (mechanism different from Coumadin - not directly contraindicated with vitamin K in the same way as Coumadin), and Procardia (nifedipine) is a calcium - channel blocker.
• Question 44: Approximately 15% of the population has negative Rh blood.
• Question 45: Unit - dose medications are individually packaged. Compazine suppositories, verapamil capsules, and cimetidine tablets can be dispensed as unit doses. Phenergan syrup is a liquid medication that is usually measured out (not typically in a pre - packaged unit - dose form like a single - use package for a specific dose).

Answer:

1. B: They have sensitive nerve endings
2. D: 50
3. B: Coumadin
4. C: 15% of the population
5. D: phenergan syrup