Nursing Elites

1. The client asked about the role of leptin in the body. Which response should the nurse provide?

• A. It increases food intake in clients, thereby promoting obesity.
• B. It assists in the regulation of steroids.
• C. It increases the total fat mass of people who are obese.
• D. It might decrease the total fat mass in the bodies of people who are obese.

Correct answer: D

Rationale: Leptin is a protein hormone expressed in fat cells that regulates fat cell percentage in the body. It is associated with increased energy expenditure and decreased food intake through hypothalamic control. In obese individuals, there may be insensitivity or resistance to leptin's effects. Leptin influences other hormones like insulin and genetic factors related to fat regulation. Therefore, the correct response is that leptin might decrease total fat mass in obese individuals as it is involved in energy balance and fat regulation. Choices A, B, and C are incorrect because leptin does not increase food intake or promote obesity; it does not assist in the regulation of steroids, and it does not increase total fat mass in people who are obese.

2. A nurse is returning phone calls in a pediatric clinic. Which of the following reports most requires the nurse's immediate attention and phone call?

• A. An 8-year-old boy has been vomiting, appears to have slower movements, and has a history of an atrioventricular shunt placement.
• B. A 10-year-old girl feels a dull pain in her abdomen after doing sit-ups in gym class.
• C. A 7-year-old boy has been having a low fever and headache for the past 3 days and has a history of an anterior knee wound.
• D. A 7-year-old girl who had a cast on her right ankle is complaining of itching.

Correct answer: A

Rationale: The correct answer is the 8-year-old boy with vomiting, slower movements, and a history of an atrioventricular shunt placement. This report requires immediate attention because the symptoms could indicate a blocked shunt, which is a serious medical condition needing urgent evaluation and intervention. Slower movements in the context of an atrioventricular shunt history could suggest increased intracranial pressure. The other choices involve less urgent issues: choice B describes post-exercise pain, choice C presents with a low-grade fever and headache that could be due to a mild infection, and choice D reports itching associated with a cast, which is a common issue and less critical compared to a potentially blocked shunt.

3. The client is admitted to the hospital following a motor vehicle accident and has sustained a closed chest wound. Which assessment finding is consistent with a flail chest?

• A. Biot's respirations
• B. Sucking sounds during respirations
• C. Paradoxical chest wall movement
• D. Hypotension and bradycardia

Correct answer: C

Rationale: The correct assessment finding consistent with a flail chest is paradoxical chest wall movement. This occurs when a segment of the chest wall moves in the opposite direction to the rest of the chest during respiration. Biot's respirations (Choice A) are a pattern of breathing characterized by groups of quick, shallow inspirations followed by regular or irregular periods of apnea. Sucking sounds during respirations (Choice B) may indicate air entering or leaving the chest cavity through a wound. Hypotension and bradycardia (Choice D) may be present due to other factors such as shock, but they are not specific to a flail chest.

4. The charge nurse on a cardiac unit tells you a patient is exhibiting signs of right-sided heart failure. Which of the following would not indicate right-sided heart failure?

• A. Muscle tetany
• B. Syncope
• C. Numbness
• D. Anxiety

Correct answer: D

Rationale: The correct answer is 'Anxiety.' Anxiety is not a typical sign of right-sided heart failure. Right-sided heart failure usually presents with symptoms such as muscle tetany, syncope, and numbness. Muscle tetany can occur due to electrolyte imbalances seen in heart failure. Syncope can result from decreased cardiac output, leading to decreased perfusion to the brain. Numbness can occur due to poor circulation. While anxiety can be present in patients with various medical conditions, it is more commonly associated with respiratory acidosis or other psychological factors rather than right-sided heart failure.

5. What do the following ABG values indicate: pH 7.38, PO2 78 mmHg, PCO2 36mmHg, and HCO3 24 mEq/L?

• A. metabolic alkalosis
• B. homeostasis
• C. respiratory acidosis
• D. respiratory alkalosis

Correct answer: B

Rationale: The correct answer is 'homeostasis.' These ABG values fall within normal ranges, indicating a state of balance in the body's acid-base levels. Choices A, C, and D are incorrect as the ABG values provided do not point towards metabolic alkalosis, respiratory acidosis, or respiratory alkalosis. Instead, the values reflect a state of equilibrium where pH, PO2, PCO2, and HCO3 levels are within the normal range.

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