Nursing Elites

1. Why is randomization important in a scientific experiment?

• A. To minimize the impact of confounding variables.
• B. To eliminate bias in the assignment of subjects to groups.
• C. To contribute to the accuracy and validity of the experiment's results.
• D. To prevent systematic differences between groups.

Correct answer: B

Rationale: Randomization is crucial in a scientific experiment to eliminate bias in the assignment of subjects to groups. By randomly assigning subjects, it helps ensure that any differences observed in the outcomes are due to the experimental treatment and not to preexisting differences between groups. Choice A is incorrect because randomization does not guarantee representativeness but rather minimizes the impact of confounding variables. Choice C is not entirely accurate; while randomization can contribute to accuracy and validity, its primary purpose is to reduce bias. Choice D is incorrect as the goal of randomization is not to balance the number of subjects but to prevent systematic differences between groups.

2. How should hydration status be assessed in a child with vomiting and diarrhea?

• A. Check skin turgor and mucous membranes
• B. Measure blood glucose levels
• C. Assess heart rate and blood pressure
• D. Evaluate bowel sounds

Correct answer: A

Rationale: Checking skin turgor and mucous membranes is the appropriate method to assess hydration status in a child with vomiting and diarrhea. Skin turgor is an indicator of skin elasticity, which decreases when an individual is dehydrated. Mucous membranes, such as the inside of the mouth, can also show signs of dehydration like dryness. Measuring blood glucose levels (choice B) is not relevant to assessing hydration status in this scenario. Assessing heart rate and blood pressure (choice C) is important in evaluating the overall condition of a child but may not directly indicate hydration status. Evaluating bowel sounds (choice D) is more related to assessing gastrointestinal function rather than hydration status.

3. What is the recommended treatment for a child with a first-degree burn?

• A. Immediate application of ice
• B. Administration of oral antibiotics
• C. Application of cool, moist compresses
• D. Application of hot packs

Correct answer: C

Rationale: The recommended treatment for a child with a first-degree burn is the application of cool, moist compresses. This helps in reducing pain and swelling without causing further damage to the skin. Applying ice directly to a burn can lead to frostbite and worsen the injury (Choice A). Oral antibiotics are not necessary for first-degree burns as they do not typically involve infection (Choice B). Hot packs should be avoided as they can further damage the skin and increase inflammation (Choice D).

4. What is a common sign of iron-deficiency anemia in children?

• A. Yellowing of the skin
• B. Pallor and fatigue
• C. Rapid weight gain
• D. Increased appetite

Correct answer: B

Rationale: Pallor and fatigue are common signs of iron-deficiency anemia in children. Iron-deficiency anemia is characterized by a decreased production of red blood cells, leading to a paler appearance (pallor) and increased fatigue due to reduced oxygen-carrying capacity. Yellowing of the skin (choice A) is more commonly associated with liver or bile duct issues. Rapid weight gain (choice C) and increased appetite (choice D) are not typical signs of iron-deficiency anemia.

5. What is the appropriate intervention for a child with an undescended testicle?

• A. Wait until puberty
• B. Perform an orchidopexy
• C. Administer hormone therapy
• D. Increase physical activity

Correct answer: B

Rationale: The appropriate intervention for a child with an undescended testicle is to perform an orchidopexy. This surgical procedure is recommended if the testicle has not descended naturally within the first year of life. Waiting until puberty is not advised as early intervention is crucial for optimal outcomes. Administering hormone therapy is not the first-line treatment for an undescended testicle and is typically not recommended. Increasing physical activity does not address the underlying issue of an undescended testicle and is not a suitable intervention.

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