Aprovider order states, “meperidine (demerol®) 45 mg, atropine sulfate (atropine®) 0.3 mg im now.” the meperidine (demerol®) comes in a pre-filled syringe containing 50 mg/ml, and the atropine sulfate (atropine®) comes in a vial containing 400 mcg/ml. what is the total volume that the nurse will be injecting?

To find the volume, just divide the mass by the dosage in mass per volume. Then, add both volumes to find the total volume. The solution is as follows:

45 mg ÷ 50 mg/mL = 0.9 mL

For the second unit, mcg is micrograms. For every 1 mcg, there is 0.001 mg. Thus,

400 mcg/ml * 0.001 mg/1 mcg = 0.4 mg/mL
0.3 mg ÷ 0.4 mg/mL = 0.75  mL

Total Volume = 0.9 mL + 0. 75 mL = 1.65 mL

4- c, because all matter stays the same no matter what. it is still there. 5- b, because matter is known as mass. 6-c because, flammability is a chemical property. malleability is changing the shape of an object.

Ans. : frostbite is when exposure to cold temperatures causes freezing to the skin or other tissues. it most commonly affects the hands, feet, and face. the longer areas are exposed to cold, typically the worse the frostbite. the water temperature used for rewarming a frostbitten part should be : (102 -105) f degrees.