Which term is used to describe medical practices that have been thoroughly evaluated using scientific methods?
- A. Meta-analysis
- B. Systematic reviews
- C. Evidence-based
- D. Observational studies
Correct Answer: C
Rationale: The correct answer is C, 'Evidence-based.' Evidence-based practices refer to medical practices that have been thoroughly evaluated and supported by scientific research. Meta-analysis (A) involves statistical analysis that combines the results of multiple studies. Systematic reviews (B) are comprehensive reviews that synthesize evidence from multiple studies. Observational studies (D) are research methods where researchers observe subjects in their natural environment.
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What is the best dietary advice for a patient with iron-deficiency anemia?
- A. Increase dairy consumption
- B. Increase vitamin C intake
- C. Reduce red meat consumption
- D. Increase fiber intake
Correct Answer: B
Rationale: The best dietary advice for a patient with iron-deficiency anemia is to increase vitamin C intake. Vitamin C enhances the absorption of non-heme iron, which can help improve iron-deficiency anemia. Choices A, C, and D are not the best options for this condition. Increasing dairy consumption (Choice A) may not directly address the iron deficiency. Reducing red meat consumption (Choice C) may limit heme iron intake, which is easily absorbed by the body. Increasing fiber intake (Choice D) is generally beneficial but is not specifically recommended as the top advice for iron-deficiency anemia.
What factor has been shown to contribute to poor nutritional health among adolescents?
- A. Most teens choose fruit juice and milk over soda
- B. Many teens consume energy drinks on a regular basis
- C. Teens have busy schedules and rarely drink fluids throughout the day
- D. Teens are more likely to consume low-fat milk
Correct Answer: B
Rationale: The correct answer is B because many teens regularly consume energy drinks, which can contribute to poor nutritional health due to their high sugar and caffeine content, leading to unhealthy dietary patterns. Choice A is incorrect because choosing fruit juice and milk over soda would generally be considered a healthier choice. Choice C is incorrect as busy schedules leading to inadequate fluid intake might impact hydration but not necessarily poor nutritional health. Choice D is also incorrect as consuming low-fat milk is not typically a significant factor contributing to poor nutritional health among adolescents.
The recommended daily fluid intake of patients maintained using hemodialysis is:
- A. 150 mL plus the volume of urinary output
- B. 500 mL plus the volume of urinary output
- C. 1000 mL plus the volume of urinary output
- D. 1500 mL plus the volume of urinary output
Correct Answer: C
Rationale: The correct answer is C: 1000 mL plus the volume of urinary output. Fluid intake is typically restricted in hemodialysis patients to prevent fluid overload. The recommended daily fluid intake for these patients is 1000 mL plus any urinary output. Choice A (150 mL plus the volume of urinary output) is too low and would not provide enough fluid for these patients. Choice B (500 mL plus the volume of urinary output) is also insufficient. Choice D (1500 mL plus the volume of urinary output) is too high and may lead to fluid overload in hemodialysis patients.
After reviewing the health and dental histories, the dental hygienist has adequate information to begin dietary counseling with the patient. Providing a standardized, low-carbohydrate menu is sufficient for most patients with a high caries rate.
- A. Both statements are true
- B. Both statements are false
- C. The first statement is true; the second is false
- D. The first statement is false; the second is true
Correct Answer: B
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Which of the following is a common sign of vitamin D deficiency?
- A. Brittle nails
- B. Muscle weakness
- C. Night blindness
- D. Hair loss
Correct Answer: B
Rationale: Muscle weakness is a common sign of vitamin D deficiency. Vitamin D is essential for calcium absorption and bone health, and its deficiency can lead to muscle weakness. Brittle nails (Choice A) are not typically associated with vitamin D deficiency. Night blindness (Choice C) is related to vitamin A deficiency, not vitamin D deficiency. Hair loss (Choice D) can be linked to various factors, but it is not a common sign of vitamin D deficiency.