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. Why must the nurse be careful not to cut through or disrupt any tears, holes, bloodstains, or dirt present on the clothing of a client who has experienced trauma?

• A. The clothing is the property of another and must be treated with care.
• B. Such care facilitates repair and salvage of the clothing.
• C. The clothing of a trauma victim is potential evidence with legal implications.
• D. Such care decreases trauma to the family members receiving the clothing.

Correct answer: C

Rationale: The correct answer is C. Trauma in any client, living or dead, has potential legal and/or forensic implications. Clothing, patterns of stains, and debris are sources of potential evidence and must be preserved. Nurses must be aware of state and local regulations that require mandatory reporting of cases of suspected child and elder abuse, accidental death, and suicide. Each Emergency Department has written policies and procedures to assist nurses and other health care providers in making appropriate reports. Physical evidence is real, tangible, or latent matter that can be visualized, measured, or analyzed. Emergency Department nurses can be called on to collect evidence. Health care facilities have policies governing the collection of forensic evidence. The chain of evidence custody must be followed to ensure the integrity and credibility of the evidence. The chain of evidence custody is the pathway that evidence follows from the time it is collected until it has served its purpose in the legal investigation of an incident. Choices A, B, and D are incorrect because they do not address the crucial aspect of preserving potential evidence with legal implications that may be present on the clothing of a trauma victim.

3. Which of the following injuries, presented by a client entering the Emergency Department, is the highest priority?

• A. open leg fracture
• B. open head injury
• C. stab wound to the chest
• D. traumatic amputation of a thumb

Correct answer: C

Rationale: A stab wound to the chest is the highest priority injury. This type of injury can lead to lung collapse and mediastinal shift, potentially resulting in death if left untreated. Treating an obstructed airway or a chest wound takes precedence over addressing hemorrhage. The principle of ABC (airway, breathing, and circulation) guides care decisions in prioritizing life-threatening situations. An open leg fracture, open head injury, and traumatic amputation of a thumb, while serious, do not pose an immediate threat to life compared to a stab wound to the chest. An open leg fracture may lead to significant blood loss but is not immediately life-threatening. An open head injury requires assessment and intervention but does not impact airway, breathing, or circulation directly. Traumatic amputation of a thumb is a serious injury but can be managed after addressing more life-threatening conditions.

4. A child presents to the school nurse with left knee pain after suffering a fall on the playground. Which action should the nurse do first?

• A. Instruct the child to extend the affected knee
• B. Perform range of motion exercises on both knees
• C. Compare the appearance of the left knee to the right knee
• D. Have the child soak the affected knee in warm water

Correct answer: C

Rationale: Comparing the appearance of the left knee to the right knee is the most appropriate initial action as it provides a baseline for assessing any visible differences such as swelling, bruising, or deformities. This comparison helps the nurse identify any acute changes in the affected knee's appearance after the fall. Instructing the child to extend the affected knee (Choice A) may worsen the pain or cause further injury. Performing range of motion exercises on both knees (Choice B) could exacerbate the pain and should be avoided until a proper assessment is done. Having the child soak the affected knee in warm water (Choice D) is not the priority at this stage as assessing for any physical changes is more crucial.

5. Teaching about the need to avoid foods high in potassium is most important for which client?

• A. a client receiving diuretic therapy
• B. a client with an ileostomy
• C. a client with metabolic alkalosis
• D. a client with renal disease

Correct answer: D

Rationale: Clients with renal disease are predisposed to hyperkalemia and should avoid foods high in potassium. High potassium levels can further burden the kidneys and worsen the condition. Choices A, B, and C are incorrect because clients receiving diuretic therapy, with an ileostomy, or with metabolic alkalosis are at risk for hypokalemia, which is low potassium levels. Therefore, these clients should actually be encouraged to eat foods high in potassium to maintain adequate levels and prevent complications associated with hypokalemia.

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