HESI LPN
LPN Nutrition Practice Test
1. 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.
2. What is an important nursing intervention for a child with a newly inserted central venous catheter?
- A. Regularly monitor for signs of infection
- B. Administer intravenous fluids only as ordered
- C. Restrict the child's movement
- D. Perform daily dressing changes only
Correct answer: A
Rationale: Regularly monitoring for signs of infection is a critical nursing intervention for a child with a newly inserted central venous catheter. This intervention is essential to detect any early signs of infection, such as redness, swelling, or drainage at the catheter site, which can lead to serious complications like sepsis. Administering intravenous fluids as ordered is important but not the most crucial intervention for a newly inserted central venous catheter. Restricting the child's movement is unnecessary unless specified by the healthcare provider. Performing daily dressing changes alone is not sufficient to ensure the catheter's integrity and the child's safety; monitoring for signs of infection is key.
3. How should a healthcare professional handle a child with a new diagnosis of type 2 diabetes?
- A. Focus on increasing physical activity and dietary management
- B. Initiate insulin therapy immediately
- C. Limit all carbohydrate intake
- D. Recommend frequent fasting
Correct answer: A
Rationale: In managing type 2 diabetes in a child, focusing on increasing physical activity and dietary management is crucial, especially in the initial treatment phase. This approach helps improve insulin sensitivity and overall glycemic control. Initiating insulin therapy immediately is not the first-line treatment for type 2 diabetes in children. Limiting all carbohydrate intake is not advisable as carbohydrates are essential for providing energy and nutrients. Recommending frequent fasting can be harmful and is not a recommended strategy for managing type 2 diabetes in children.
4. What is a common treatment for a child with a urinary tract infection (UTI)?
- A. Intravenous antibiotics
- B. Oral antibiotics
- C. Increased fluid intake only
- D. Topical antibiotics
Correct answer: B
Rationale: Oral antibiotics are the correct choice for treating a child with a urinary tract infection (UTI). They are often prescribed to effectively address the infection and alleviate symptoms. Intravenous antibiotics (Choice A) are usually reserved for severe cases where oral antibiotics are not feasible or effective. Increased fluid intake (Choice C) can help in flushing out bacteria but is not a standalone treatment for UTIs. Topical antibiotics (Choice D) are not typically used to treat UTIs as they are more suited for skin infections.
5. Approximately how many grams does a normal half-cup vegetable portion weigh?
- A. 5 grams
- B. 50 grams
- C. 100 grams
- D. 150 grams
Correct answer: C
Rationale: A normal half-cup vegetable portion usually weighs around 100 grams. This weight is a standard measurement for a half-cup serving of vegetables, making choice C the correct answer. Choices A, B, and D are incorrect as they do not align with the typical weight of a half-cup vegetable portion.
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