Nursing Elites

1. What is the most significant dietary influence on the development of dental caries?

• A. Carbohydrates
• B. Vitamins
• C. Minerals
• D. Fats

Correct answer: A

Rationale: The correct answer is A: Carbohydrates. Carbohydrates, especially fermentable sugars, are the most significant dietary factor in the development of dental caries. When these sugars are consumed, they can be fermented by bacteria in the mouth, leading to the production of acids. These acids lower the pH in the mouth, creating an acidic environment that promotes demineralization of the tooth enamel, ultimately causing dental caries. Choices B, C, and D are incorrect because while vitamins and minerals are important for overall health, they do not have the same direct impact on the development of dental caries as fermentable carbohydrates do. Fats, on the other hand, do not play a significant role in the development of dental caries.

2. While a team effort is necessary in the operating room (OR) for efficient and quality patient care delivery, the number of people in the room should be limited for infection control purposes. Which roles comprise this team?

• A. Surgeon, anesthesiologist, scrub nurse, radiologist, orderly
• B. Surgeon, assistants, scrub nurse, circulating nurse, anesthesiologist
• C. Surgeon, assistant surgeon, anesthesiologist, scrub nurse, pathologist
• D. Surgeon, assistant surgeon, anesthesiologist, intern, scrub nurse

Correct answer: B

Rationale: The roles typically present in an operating room team include the surgeon, assistants (which may include an assistant surgeon), scrub nurse, circulating nurse, and anesthesiologist. These roles are directly involved in the operation and patient care. Choice B is correct. Choice A includes a radiologist and an orderly, who are not typically part of the immediate surgical team in the OR. Choice C includes a pathologist, who usually works in a laboratory outside of the OR. Choice D includes an intern, who may or may not be part of the team, depending on the specific circumstances and hospital policy. These explanations make choices A, C, and D incorrect.

3. During which phase of the therapeutic relationship should the nurse inform the patient about the termination of therapy?

• A. Pre-orientation
• B. Orientation
• C. Working
• D. Termination

Correct answer: D

Rationale: The correct answer is 'Termination'. This phase of the therapeutic relationship is when the nurse informs the patient about the conclusion of therapy. It is during this phase that the nurse and the patient review the goals and progress made and also discuss the upcoming termination. The other phases are not the appropriate times for discussing termination. 'Pre-orientation' is the phase before the nurse-patient relationship is established; 'Orientation' is when the nurse and patient get to know each other and set goals; and 'Working' is when these goals are pursued. Therefore, choices A, B, and C are incorrect.

4. In the US, low iron intake is often associated with?

• A. low intake of fruits and vegetables
• B. pregnancy
• C. high sugar and fat intakes
• D. high protein intake

Correct answer: C

Rationale: Diets high in sugar and fat often lack essential nutrients like iron, leading to a risk of iron deficiency anemia, especially when iron-rich foods are not consumed adequately.

5. How many calories are contained in a food that has 15 grams of carbohydrates, 4 grams of protein, and 10 grams of fat?

• A. 106
• B. 124
• C. 166
• D. 202

Correct answer: C

Rationale: To calculate the total calories in a food item, you can use the following conversions: every 1 gram of carbohydrate provides 4 calories, 1 gram of protein provides 4 calories, and 1 gram of fat provides 9 calories. Therefore, for this food item, multiply 15 grams of carbohydrates by 4 calories/gram, 4 grams of protein by 4 calories/gram, and 10 grams of fat by 9 calories/gram. The calculation would be (15 * 4) + (4 * 4) + (10 * 9) = 60 + 16 + 90 = 166 calories. Choice A (106) is incorrect because it does not consider the calories from fat. Choice B (124) is incorrect as it underestimates the calories by not including all macronutrients. Choice D (202) is incorrect as it overestimates the calories by adding up the values incorrectly.

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