Nursing Elites

1. When an increase in exercise is accompanied by a decrease in body weight, it is an example of what?

• A. variable effect
• B. positive correlation
• C. negative correlation
• D. randomization effect

Correct answer: C

Rationale: When an increase in exercise is accompanied by a decrease in body weight, it demonstrates a negative correlation. This means that as one variable (exercise) increases, the other variable (body weight) decreases. Choice A, 'variable effect,' is vague and does not accurately describe the relationship between exercise and body weight. Choice B, 'positive correlation,' is incorrect because in a positive correlation, both variables would increase or decrease together. Choice D, 'randomization effect,' is unrelated to the scenario described.

2. What is a common complication of uncontrolled type 1 diabetes in children?

• A. Hyperactivity
• B. Ketoacidosis
• C. Hypertension
• D. Hypoglycemia

Correct answer: B

Rationale: Ketoacidosis is a prevalent complication of uncontrolled type 1 diabetes in children. It is a serious condition characterized by high levels of ketones in the blood, leading to acidosis. Prompt medical attention is necessary to manage this potentially life-threatening condition. Choice A, hyperactivity, is not a typical complication of uncontrolled type 1 diabetes. Choice C, hypertension, is not a direct complication of type 1 diabetes in children. Choice D, hypoglycemia, is more commonly associated with low blood sugar levels, which can occur due to excessive insulin administration or inadequate food intake in diabetic individuals, rather than uncontrolled type 1 diabetes.

3. What is the most effective therapy for maintaining remission of acute lymphoblastic leukemia?

• A. Surgery to remove enlarged lymph nodes
• B. Long-term chemotherapy
• C. Nutritional supplements to enhance blood cell production
• D. Blood transfusions to replace ineffective red cells

Correct answer: B

Rationale: The correct answer is B: Long-term chemotherapy. Long-term chemotherapy, specifically with methotrexate, is the most effective therapy for maintaining remission in acute lymphoblastic leukemia. Surgery to remove enlarged lymph nodes (Choice A) is not the primary treatment for leukemia. Nutritional supplements (Choice C) may support overall health but are not the mainstay therapy for maintaining leukemia remission. Blood transfusions (Choice D) are used to address anemia in some cases but are not the primary treatment for maintaining remission in acute lymphoblastic leukemia.

4. 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.

5. Approximately how many milliliters are contained in a half-cup of milk?

• A. 50
• B. 85
• C. 120
• D. 170

Correct answer: C

Rationale: A half-cup of milk is equivalent to approximately 120 milliliters. This conversion is standard and commonly used in cooking and baking. Choice A (50 milliliters) is too low for a half-cup measurement. Choice B (85 milliliters) is also lower than the standard half-cup measurement of 120 milliliters. Choice D (170 milliliters) is too high for a half-cup, making it an incorrect option.

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