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. What is tocopherol?

• A. Vitamin B1
• B. Vitamin B2
• C. Vitamin B3
• D. Vitamin E

Correct answer: D

Rationale: Tocopherol is another name for Vitamin E, a fat-soluble antioxidant that helps protect cell membranes from oxidative damage. Choices A, B, and C are incorrect as tocopherol is specifically related to Vitamin E and not Vitamin B1, B2, or B3.

3. Each statement is true of vitamin K, except one. Which is the exception?

• A. Vitamin K is produced in the gut.
• B. Vitamin K functions as a catalyst for the synthesis of blood-clotting factors.
• C. Vitamin K maintains prothrombin levels.
• D. Vitamin K absorption increases with high levels of vitamin E supplementation.

Correct answer: D

Rationale: The correct answer is D. Vitamin K absorption decreases with high levels of vitamin E supplementation because in larger amounts, vitamin E acts as an anticoagulant. Vitamin K is not produced in the gut but can be obtained from food sources or supplements. Vitamin K is essential for the synthesis of blood-clotting factors and is crucial in maintaining prothrombin levels, which is vital for proper blood clotting. The incorrect choice, D, is misleading as high levels of vitamin E supplementation hinder vitamin K absorption due to its anticoagulant properties. Dental hygienists should be aware of the importance of vitamin K in blood clotting, especially when treating patients who are on anticoagulant medications for conditions like stroke prevention.

4. The stages of grieving identified by Elizabeth Kubler-Ross are:

• A. Numbness, anger, resolution and reorganization
• B. Denial, anger, identification, depression and acceptance
• C. Anger, loneliness, depression and resolution
• D. Denial, anger, bargaining, depression and acceptance

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. A client newly diagnosed with hypertension is receiving teaching about the Mediterranean diet from a nurse. Which of the following statements by the client indicates a need for further teaching?

• A. I will limit my intake of red meat to twice weekly.
• B. I can have dairy in moderate portions daily.
• C. I can have fish two times a week.
• D. I can drink wine in moderation.

Correct answer: D

Rationale: The correct answer is D. Patients with hypertension should be advised to limit alcohol consumption, including wine, to help manage their blood pressure. Choices A, B, and C are all consistent with the Mediterranean diet and are appropriate for a client with hypertension. Reducing red meat intake, consuming dairy in moderate portions, and having fish regularly align with the principles of this heart-healthy eating pattern.

Similar Questions