Nursing Elites

1. Which hormone is primarily responsible for the regulation of calcium and phosphate in the blood?

• A. Parathyroid hormone
• B. Insulin
• C. Cortisol
• D. Thyroxine

Correct answer: A

Rationale: Parathyroid hormone is the correct answer. It regulates calcium and phosphate levels in the blood by increasing calcium reabsorption in the kidneys and releasing calcium from bones. Insulin is involved in glucose metabolism, not calcium and phosphate regulation. Cortisol is a stress hormone and is not primarily responsible for regulating calcium and phosphate levels. Thyroxine is a thyroid hormone that primarily regulates metabolism, not calcium and phosphate in the blood.

2. Which type of cell is responsible for producing antibodies in the immune system?

• A. B lymphocytes
• B. T lymphocytes
• C. Macrophages
• D. Neutrophils

Correct answer: A

Rationale: The correct answer is A: B lymphocytes. B lymphocytes (B cells) are a crucial part of the adaptive immune system. They produce antibodies, which are proteins that specifically target and neutralize pathogens such as bacteria and viruses. T lymphocytes (choice B) are involved in cell-mediated immunity rather than antibody production. Macrophages (choice C) are phagocytic cells that engulf and digest pathogens but do not produce antibodies. Neutrophils (choice D) are a type of white blood cell that primarily function in the innate immune response by phagocytosing pathogens.

3. During the immediate postoperative period following a total hip replacement, which intervention is most important for the nurse to implement?

• A. Encourage the client to use a walker or cane when ambulating
• B. Keep the client's hip aligned with knees abducted
• C. Teach the client to sit on the side of the bed before standing
• D. Monitor urinary flow via an indwelling catheter

Correct answer: B

Rationale: Keeping the client's hip aligned with the knees abducted is crucial to prevent dislocation of the prosthesis, which is a priority immediately after total hip replacement surgery. This position helps maintain the stability of the new hip joint. Encouraging the client to use a walker or cane (Choice A) is important but not as critical as ensuring proper hip alignment. Teaching the client to sit on the side of the bed before standing (Choice C) is a good practice but not as essential as maintaining hip alignment. Monitoring urinary flow via an indwelling catheter (Choice D) is not directly related to preventing complications immediately after a total hip replacement.

4. The single mother of a child with a head injury is sitting at the child's bedside crying when the PN enters the room. The mother states, 'Why did this happen to my child? I just can't cope with this.' How should the PN respond?

• A. Ask her to share how the injury occurred to her child.
• B. Recommend that she remain calm and positive for her child.
• C. Express that the present situation must be overwhelming.
• D. Determine if someone else can help her cope with this tragedy.

Correct answer: C

Rationale: Expressing empathy and acknowledging the mother's feelings helps in providing emotional support during a difficult time. This response validates her emotions and offers a comforting presence. Choice A is not appropriate as it focuses on gathering information rather than addressing the mother's emotional distress. Choice B may come off as dismissive of the mother's feelings and oversimplifies the complexity of the situation. Choice D shifts the responsibility to someone else instead of offering immediate support and comfort.

5. Thirty minutes after receiving IV morphine, a postoperative client continues to rate pain as 7 on a 10-point scale. Which action should the PN implement first?

• A. Call healthcare provider to request a different analgesic
• B. Determine when morphine can be given again
• C. Implement complementary pain relief methods
• D. Observe dressing to determine the presence of bleeding

Correct answer: C

Rationale: The most appropriate action for the PN to implement first is to implement complementary pain relief methods. This includes repositioning the client, applying heat or cold packs, or using relaxation techniques. These strategies can provide additional pain relief before the next dose of medication is due or before seeking further instructions from the healthcare provider. Calling the healthcare provider immediately to request a different analgesic (Choice A) may not be necessary at this moment since other non-pharmacological methods can be attempted first. Determining when morphine can be given again (Choice B) is important but addressing the client's immediate pain relief takes precedence. Observing the dressing for bleeding (Choice D) is important but not the first priority when the client is experiencing unrelieved pain.

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