Nursing Elites

1. During early tooth development, vitamin A deficiency leads to enamel hypoplasia and defective dentin formation. Because of its effect on soft tissues and bone, vitamin A contributes to normal spacing of teeth.

• 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: A

Rationale: Both statements are true. The effect of vitamin A on the growth of soft tissues and bones naturally extends to the teeth and surrounding structures. Enamel hypoplasia, involving defective enamel matrix and incomplete calcification of enamel and dentin, can be due to vitamin A deficiency. The effect of this vitamin upon surrounding bone directly affects spacing patterns of the teeth within the bone and dentition. Choice A is correct because both statements accurately describe the influence of vitamin A on tooth development. Choices B, C, and D are incorrect as they do not reflect the accuracy of the statements provided.

2. A nurse is providing teaching to a client who has type 1 diabetes mellitus. Which of the following statements by the client indicates an understanding of the teaching?

• A. Albumin in my urine is an indication of normal kidney function.
• B. I will keep my HbA1c at five percent.
• C. I will have ketones in my urine if my blood glucose is maintained at 190 milligrams per deciliter.
• D. I will keep my blood glucose levels between 200 and 212 milligrams per deciliter.

Correct answer: B

Rationale: The correct answer is B. Maintaining an HbA1c level of 5 percent indicates good long-term blood glucose control and understanding of diabetes management. Choice A is incorrect because the presence of albumin in the urine (albuminuria) is actually an indication of kidney damage in diabetes. Choice C is incorrect as ketones in the urine are a sign of inadequate insulin and can occur when blood glucose levels are high, not at a specific level like 190 mg/dL. Choice D is also incorrect as the client should aim to keep blood glucose levels within a tighter range for better control, typically between 80-130 mg/dL before meals and less than 180 mg/dL after meals.

3. A nurse is teaching a group of adults about nutrition. The nurse should include which of the following amounts as an appropriate daily intake of fiber for adult women?

• A. 5 to 10 g
• B. 10 to 15 g
• C. 20 to 35 g
• D. 40 to 50 g

Correct answer: C

Rationale: The correct answer is 20 to 35 g. This range is the recommended daily intake of fiber for adult women. Fiber is essential for maintaining a healthy digestive system and overall well-being. Option A (5 to 10 g) is too low and may not provide sufficient fiber intake. Option B (10 to 15 g) is also below the recommended range. Option D (40 to 50 g) is too high and can lead to gastrointestinal discomfort and other complications if consumed in excess.

4. What is considered an acceptable LDL cholesterol level for children and adolescents?

• A. Less than 70 mg/dL
• B. Less than 110 mg/dL
• C. Less than 129 mg/dL
• D. Less than 170 mg/dL

Correct answer: B

Rationale: An LDL cholesterol level of less than 110 mg/dL is considered acceptable and healthy for children and adolescents. This level helps reduce the risk of cardiovascular diseases. Choices A, C, and D are incorrect because an LDL cholesterol level below 110 mg/dL is the recommended target for children and adolescents to maintain good heart health.

5. Where in the body are microvilli located, facilitating the absorption of most nutrients?

• A. Stomach
• B. Pancreas
• C. Large Intestine
• D. Small Intestine

Correct answer: D

Rationale: The correct answer is D: Small Intestine. Microvilli are present in the small intestine, significantly increasing its surface area for efficient absorption of nutrients. The small intestine is the primary site for nutrient absorption in the body. The stomach (choice A) primarily functions to break down food with its acidic environment but is not where most nutrients are absorbed. The pancreas (choice B) produces enzymes to aid in digestion but does not directly absorb nutrients. The large intestine (choice C) mainly absorbs water and electrolytes from undigested food, rather than nutrients.

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