Nursing Elites

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

• A. Saliva is supersaturated with calcium.
• B. Saliva is a source of calcium to mineralize an immature or demineralized enamel surface.
• C. Calcium and phosphate in saliva provide a buffering action.
• D. Calcium within saliva increases dental caries.

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 nutrient is critical for wound healing and immune function?

• A. Vitamin B12
• B. Vitamin C
• C. Vitamin D
• D. Vitamin K

Correct answer: B

Rationale: Vitamin C is essential for collagen formation and immune function.

3. During an initial visit with an older adult client living alone and having difficulty preparing meals, what should the home health nurse do first?

• A. Discuss nutritional requirements with the client.
• B. Refer the client to a senior citizen center.
• C. Arrange for a home-delivered meal program.
• D. Perform a nutrition screening.

Correct answer: D

Rationale: Performing a nutrition screening is the most appropriate action for the nurse to take first. This allows the nurse to assess the client's current nutritional status and identify any specific needs. Discussing nutritional requirements with the client (Choice A) may be important but should come after the initial assessment. Referring the client to a senior citizen center (Choice B) or arranging for a home-delivered meal program (Choice C) are actions that may be considered later based on the findings of the nutrition screening.

4. What is the most appropriate nutritional advice for a patient with hypertension?

• A. Increase salt intake
• B. Reduce fiber intake
• C. Increase potassium intake
• D. Increase sugar intake

Correct answer: C

Rationale: Increasing potassium intake can help manage blood pressure levels in patients with hypertension.

5. Major complications of diabetes include damage to the:

• A. stomach, liver, and pancreas
• B. eyes, nerves, and kidneys
• C. skin, blood vessels, and lungs
• D. brain, pituitary gland, and thyroid gland

Correct answer: B

Rationale: The correct answer is B: eyes, nerves, and kidneys. In diabetes, major complications result from damage to small blood vessels that supply these organs. Damage to the eyes can lead to retinopathy, to the nerves causing neuropathy, and to the kidneys causing nephropathy. Choices A, C, and D are incorrect as they do not represent the typical major complications associated with diabetes.

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