Nursing Elites

1. Which type of cells secrete insulin?

• A. alpha cells
• B. beta cells
• C. CD4 cells
• D. helper cells

Correct answer: B

Rationale: Beta cells are responsible for secreting insulin. Insulin is produced by beta cells in the pancreas and plays a crucial role in regulating blood sugar levels. Alpha cells secrete glucagon, not insulin (Choice A). CD4 cells are a type of immune cell that helps coordinate the immune response (Choice C). Helper cells are a type of immune cell that aids in activating other immune cells (Choice D). Therefore, the correct answer is beta cells.

2. A nurse has been ordered to set up Buck's traction on a patient's lower extremity due to a femur fracture. Which of the following applies to Buck's traction?

• A. A weight greater than 10 lbs. should be used.
• B. The line of pull is upward at an angle.
• C. The line of pull is straight
• D. A weight greater than 20 lbs. should be used.

Correct answer: C

Rationale: The correct answer is that the line of pull is straight for Buck's traction. This type of traction is applied to maintain alignment and immobilization of fractures, typically involving the lower extremities. A straight line of pull helps to provide the necessary countertraction to keep the fractured bone in proper alignment. Choices A and D are incorrect because Buck's traction commonly uses a weight range between 5-10 lbs, and using a weight greater than 10 or 20 lbs would not be appropriate or safe. Choice B is incorrect as well since the line of pull for Buck's traction is straight, not upward at an angle.

3. The LPN is preparing to ambulate a client post total knee replacement. Which of the following actions should the nurse perform prior to ambulating the client?

• A. Assist the client to a sitting position at the edge of the bed
• B. Have the client march in place for 30 seconds
• C. Have the client raise his arms above his head
• D. Ask the client the last time he fell

Correct answer: A

Rationale: The correct action to perform before ambulating a client post total knee replacement is to assist the client to a sitting position at the edge of the bed. This step is crucial to prevent orthostatic hypotension and ensure the client is ready to stand and walk safely. Having the client march in place or raise his arms above his head are not necessary preparations for ambulation. While knowing about the client's fall history is important for safety reasons, it is not the priority action immediately before ambulating the client.

4. A 21-year-old college student has just learned that she contracted genital herpes from her sexual partner. After completing the initial history and assessment, the nurse has data concerning areas pertinent to the disease. The data is likely to include all but which of the following?

• A. voiding patterns
• B. characteristics of lesions
• C. vaginal discharge
• D. prior history of varicella

Correct answer: D

Rationale: The correct answer is 'prior history of varicella.' When assessing a client with genital herpes, it is important to gather data on voiding patterns, characteristics of lesions, and vaginal discharge as these are pertinent to the disease. However, the prior history of varicella is not directly related to the current diagnosis of genital herpes. Varicella, which refers to chickenpox, is caused by the varicella-zoster virus, a different virus from the herpes simplex virus causing genital herpes.

5. The nurse observes a nursing assistant performing AM care for a client with a new leg cast. Which action by the assistant will the nurse intervene?

• A. Lifting the affected leg with the palms of the hands
• B. Covering the affected leg with a blanket to avoid chills
• C. Placing plastic over the groin prior to bathing
• D. Elevating the casted leg on two pillows

Correct answer: B

Rationale: The correct answer is to intervene when the assistant covers the affected leg with a blanket to avoid chills. A new cast should not be covered to allow the heat from the cast to evaporate, preventing complications. Lifting the affected leg with the palms of the hands is appropriate for proper handling. Placing plastic over the groin prior to bathing is a standard practice to protect the client's privacy and maintain hygiene. Elevating the casted leg on two pillows helps reduce swelling and promote circulation, making it a suitable action.

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