each is true of calcium within saliva except one which is the exception
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Nursing Elites

ATI RN

ATI Nutrition Proctored Exam

1. Each statement is true of calcium within saliva, except one. Which is the exception?

Correct answer: D

Rationale: The correct answer is D. Calcium within saliva does not increase dental caries; in fact, the buffering action provided by calcium and phosphate in saliva inhibits caries formation by preventing the dissolution of enamel by plaque biofilm. Choice A is correct as saliva is indeed supersaturated with calcium. Choice B is correct as saliva serves as a source of calcium to mineralize an immature or demineralized enamel surface. Choice C is correct as calcium and phosphate in saliva do provide a buffering action to protect teeth from acids.

2. Which of the following are the primary bacteria involved in the initiation of dental caries?

Correct answer: A

Rationale: The correct answer is A: Streptococcus mutans and Lactobacillus species. These bacteria are primarily responsible for initiating dental caries by fermenting carbohydrates and producing acids that demineralize enamel. Choice B, Salmonella and Listeria species, are not the primary bacteria involved in dental caries. Choice C includes Salmonella which is not a primary culprit in dental caries. Choice D lists Listeria, Botulinum species, and Escherichia coli, none of which are the primary bacteria associated with initiating dental caries.

3. A nurse provides discharge instructions to a client about the food items that interact with warfarin effectiveness. Which food item indicates that the teaching was effective?

Correct answer: A

Rationale: Cauliflower is high in vitamin K, which can interact with warfarin.

4. Who among the following can work as a practicing nurse in the Philippines without taking the Licensure examination?

Correct answer: C

Rationale: Effective nursing care involves comprehensive assessments that address all aspects of a patient's condition, ensuring that interventions are appropriately targeted and outcomes are optimized.

5. Why is bleeding in the leg of a pregnant woman considered as an emergency?

Correct answer: B

Rationale: Nursing interventions should be grounded in a deep understanding of the physiological processes involved, ensuring that care provided is both effective and efficient.

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