Nursing Elites

1. What dietary recommendation is essential for a child with phenylketonuria (PKU)?

• A. High-protein diet
• B. Low-fat diet
• C. Low-phenylalanine diet
• D. High-fiber diet

Correct answer: C

Rationale: The correct answer is C: 'Low-phenylalanine diet.' Children with phenylketonuria (PKU) need to follow a low-phenylalanine diet to manage the condition. Phenylalanine is an amino acid found in protein-containing foods, and individuals with PKU have difficulty metabolizing it, leading to neurological damage and other complications. Therefore, restricting phenylalanine intake is crucial. Choice A, 'High-protein diet,' is incorrect because high protein intake would increase phenylalanine levels, worsening the condition. Choice B, 'Low-fat diet,' and Choice D, 'High-fiber diet,' are not the primary focus for PKU patients. The key dietary intervention for PKU is controlling phenylalanine intake, which is best achieved through a low-phenylalanine diet.

2. What is the key to preventing recurrent respiratory infections in children with cystic fibrosis?

• A. Routine use of antibiotics
• B. Daily chest physiotherapy
• C. Increased fluid intake
• D. Dietary supplements

Correct answer: B

Rationale: The correct answer is B: Daily chest physiotherapy. Daily chest physiotherapy is essential in cystic fibrosis as it helps in clearing mucus from the lungs, reducing the frequency of respiratory infections. Antibiotics (Choice A) may treat infections but are not the key preventive measure. Increased fluid intake (Choice C) and dietary supplements (Choice D) can be beneficial for overall health but do not directly prevent recurrent respiratory infections in children with cystic fibrosis.

3. How should a child with a newly diagnosed seizure disorder be managed?

• A. Avoid all physical activity
• B. Monitor for triggers and ensure safety
• C. Increase dietary sodium intake
• D. Restrict all forms of social interaction

Correct answer: B

Rationale: When managing a child with a newly diagnosed seizure disorder, it is essential to monitor for triggers and ensure safety. By identifying triggers such as lack of sleep, stress, or specific foods, healthcare professionals can help prevent seizures. Ensuring safety involves creating a safe environment to prevent injuries during a seizure. Choices A, C, and D are incorrect. Avoiding all physical activity can be detrimental as appropriate exercise is essential for overall health. Increasing dietary sodium intake is not a standard recommendation for managing seizures. Restricting all forms of social interaction is unnecessary and can have negative effects on the child's emotional well-being.

4. What does a positive correlation between two variables indicate?

• A. One variable causes the other.
• B. Both variables move in the same direction.
• C. Both variables move in opposite directions.
• D. There is no relationship between the variables.

Correct answer: B

Rationale: A positive correlation between two variables indicates that they move in the same direction. This means that as one variable increases (or decreases), the other variable also increases (or decreases). Choice A is incorrect because correlation does not imply causation; it only shows a relationship between variables. Choice C is incorrect as it describes a negative correlation where variables move in opposite directions. Choice D is incorrect as a positive correlation implies a relationship between the variables.

5. How does a double-blind experiment work?

• A. Both subject groups take turns receiving each treatment.
• B. Neither subjects nor researchers know which subjects are in the control or experimental group.
• C. Neither group of subjects knows whether they are in the control or experimental group, but the researchers do not know.
• D. Both subject groups know whether they are in the control or experimental group, but the researchers do not know.

Correct answer: B

Rationale: The correct answer is B. In a double-blind experiment, neither the subjects nor the researchers know which subjects are in the control or experimental group. This helps to eliminate bias and ensure that the results are more objective. Choice A is incorrect as in a double-blind experiment, subjects do not take turns receiving each treatment; it is about masking the treatment allocation. Choice C is incorrect because it implies that the researchers are aware of the group allocation, which goes against the principle of blinding in a double-blind study. Choice D is incorrect as both subject groups should not know whether they are in the control or experimental group to maintain the blindness of the study.

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