Nursing Elites

1. What is the most common genetic cause of intellectual disability?

• A. Down syndrome
• B. Fragile X syndrome
• C. Prader-Willi syndrome
• D. Turner syndrome

Correct answer: B

Rationale: The correct answer is Fragile X syndrome because it is the most common inherited cause of intellectual disability, resulting from a mutation in the FMR1 gene. Down syndrome, Prader-Willi syndrome, and Turner syndrome are not the most common genetic causes of intellectual disability. Down syndrome is caused by the presence of an extra chromosome 21, Prader-Willi syndrome results from specific genetic abnormalities on chromosome 15, and Turner syndrome is characterized by the absence of part or all of one of the X chromosomes.

2. Which electrolyte imbalance is most commonly associated with seizures?

• A. Hyponatremia
• B. Hypercalcemia
• C. Hyperkalemia
• D. Hypokalemia

Correct answer: A

Rationale: The correct answer is A: Hyponatremia. Hyponatremia, characterized by low sodium levels in the blood, can lead to cerebral edema and seizures due to water shifting into brain cells. Hypercalcemia (choice B) does not commonly cause seizures but can result in muscle weakness and cardiac arrhythmias. Hyperkalemia (choice C) may lead to muscle weakness and cardiac arrhythmias, but it is less frequently associated with seizures. Hypokalemia (choice D) is linked to muscle weakness and cardiac arrhythmias but is not typically related to seizures.

3. A 12-year-old child is receiving a blood transfusion via an infusion pump and begins to complain of 'itchy' skin 15 minutes after the unit of blood is started. The child appears flushed. What action should the nurse take first?

• A. Apply lotion to the skin
• B. Stop the transfusion
• C. Inspect the infusion site
• D. Obtain the vital signs

Correct answer: B

Rationale: Stopping the transfusion immediately is crucial when signs of a transfusion reaction, such as itching and flushing, occur. This action is taken to prevent further exposure to the potentially harmful transfused blood. Applying lotion to the skin, inspecting the infusion site, or obtaining vital signs can be important but are secondary to stopping the transfusion to ensure the safety of the child. Applying lotion may not address the underlying issue of a possible transfusion reaction. Inspecting the infusion site and obtaining vital signs can be done after stopping the transfusion, as patient safety is the top priority in this situation.

4. What is the most common sign of a localized infection?

• A. Fever
• B. Elevated white blood cell count
• C. Redness, warmth, and swelling at the site of infection
• D. Chills and shivering

Correct answer: C

Rationale: The correct answer is C: Redness, warmth, and swelling at the site of infection. These signs are typical indications of a localized infection, representing inflammation and the body's immune response to the pathogen. Fever (choice A) is a systemic response and not specific to a localized infection. Elevated white blood cell count (choice B) can be seen in both localized and systemic infections. Chills and shivering (choice D) are more related to the body's response to fever and not specifically indicative of a localized infection.

5. The PN identifies an electrolyte imbalance, exhibited by changes in mental status, and an elevated blood pressure for a client with progressive heart disease. Which intervention should the PN implement first?

• A. Record usual eating patterns
• B. Evaluate for muscle cramping
• C. Document abdominal girth
• D. Elevate both legs on pillows

Correct answer: B

Rationale: Evaluating for muscle cramping, which is a sign of electrolyte imbalance, is crucial in this scenario. Electrolyte imbalances, especially involving potassium or calcium, can lead to serious complications such as arrhythmias or seizures, which need immediate attention. Recording eating patterns (choice A) may be important for overall assessment but is not the priority in this situation. Documenting abdominal girth (choice C) and elevating legs on pillows (choice D) are not directly related to addressing the immediate concern of electrolyte imbalance and its potential complications.

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