Nursing Elites

1. 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.

2. Which vitamin deficiency is most likely to cause bleeding disorders?

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

Correct answer: C

Rationale: Vitamin K is essential for blood clotting as it plays a crucial role in the activation of clotting factors. Deficiency of Vitamin K can lead to impaired blood clotting, resulting in bleeding disorders. Vitamin A is more associated with vision and skin health, not blood clotting. Vitamin E is known for its antioxidant properties and role in immune function, not specifically related to bleeding disorders. Vitamin D plays a key role in calcium absorption and bone health, but it is not directly linked to blood clotting or bleeding disorders.

3. What is the term for the act of performing beneficial services rather than harmful ones?

• A. Beneficence
• B. Disclosure
• C. Maleficence
• D. Justice

Correct answer: A

Rationale: The term for the act of performing beneficial services rather than harmful ones is 'Beneficence'. Beneficence refers to actions that enhance the well-being of others. In the healthcare context, beneficence ensures that health services are advantageous and beneficial to patients. 'Disclosure' (choice B) is the act of revealing information, not directly related to whether actions are beneficial or harmful. 'Maleficence' (choice C) is the opposite of beneficence, involving actions that can cause damage or harm. 'Justice' (choice D) denotes fairness and equality, important in various contexts but not specifically related to performing beneficial services.

4. Uric acid kidney stones are most commonly associated with what condition?

• A. diabetes
• B. hypercalcemia
• C. gout
• D. diarrhea

Correct answer: C

Rationale: Gout is a condition characterized by high levels of uric acid, which can lead to the formation of uric acid kidney stones due to the crystallization of uric acid in the kidneys.

5. What characterizes Obsessive Compulsive Disorder?

• A. Uncontrollable impulse to perform an act or ritual repeatedly
• B. Persistent thoughts and behavior
• C. Recurring unwanted and disturbing thoughts
• D. Pathological persistence of unwilled thoughts

Correct answer: A

Rationale: Obsessive Compulsive Disorder (OCD) is characterized by the uncontrollable impulse to perform an act or ritual repeatedly (Choice A). This is driven by recurring unwanted and disturbing thoughts (Choice C), but the distinguishing factor is the compulsive behavior, making choice A the most accurate. While choice B can be seen as true, it lacks the specific detail of the compulsive behavior that makes A a better answer. Choice D is not incorrect, but it uses terminology that is less precise and less commonly used to describe OCD, making it a less accurate choice than A. The provided rationale is not relevant to the question.

Similar Questions