All of the following are sources of natural fluoride except
a. tea.
b. seafood.
c. chicken.
d. oranges.
d. Fluoride is found naturally in tea, seafood, chicken, and in some water sources. Raw tea leaves can have up to 400 part per million (ppm) of fluoride while brewed tea would have 3 ppm. Often you will find fluoride added to water supplies, dentifrices, and school water systems.
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What explains the lack of an increased anion gap seen in metabolic acidosis caused by HCO3– loss?
a. For each HCO3– ion lost, a Cl– ion is reab-sorbed by the kidney. b. For each HCO3– ion lost, the body pro-duces another to replace it. c. HCO3– is not a measured anion, so its loss does not affect the anion gap. d. Replacement of HCO3– occurs by ammo-nia ions which are also anions.
In contrast to dementia, delirium is:
A) an acute change in mental status. B) characteristic of Alzheimer's disease. C) more common in the elderly population. D) a gradual deterioration in cognitive function.
Droplets from coughs or sneezes can carry up to ________ feet.
A. 3 B. 2 C. 1 D. 5 E. 4
The written notification that must be signed by the patient or legal representative that was established by HIPAA is the:
A. Notice of Practice. B. Notice of Patient Rights. C. Notice of Privacy Practices. D. Notice of Privacy.