Which of the following units represents the addition of fluoride in drinking water?
a. milligrams (mg)
b. milliliters (ml)
c. parts per million (ppm)
d. liters (L)
c. Fluoride can be added to water (in ratios or parts per million [ppm]), dentifrices, mouthwashes, gels, or tablets as a supplement for ingestion.
Health Professions
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A 45-year-old patient with congestive heart failure is receiving O2 through a 35% air-entrainment mask. With an O2 input of 6 L/min, what is the total output gas flow?
a. 16 L/min b. 24 L/min c. 28 L/min d. 36 L/min
Health Professions
When using x-rays, a patient's ________ must be protected from x-ray exposure
A) heart B) reproductive organs C) kidneys D) brain
Health Professions