Nursing Elites

1. What is the primary role of the sinoatrial (SA) node in the heart?

• A. Pacemaker of the heart
• B. Blood pressure regulation
• C. Electrical conduction delay
• D. Stimulating muscle contraction

Correct answer: A

Rationale: The correct answer is A: Pacemaker of the heart. The SA node, known as the natural pacemaker, initiates the electrical impulses that set the rhythm for the heartbeat. It is responsible for coordinating the heart's contractions by generating electrical signals at regular intervals. Choice B is incorrect as the SA node's primary function is not related to blood pressure regulation. Choice C is incorrect as the SA node does not cause electrical conduction delay but rather initiates and conducts the electrical impulses. Choice D is incorrect as the SA node does not directly stimulate muscle contraction but rather initiates the electrical events that lead to muscle contraction.

2. The PN administered darbepoetin alfa to a client with chronic kidney disease (CKD). Which serum laboratory value should the PN monitor to assess the effectiveness of this drug?

• A. Calcium
• B. Phosphorus
• C. Hemoglobin
• D. White blood cell count

Correct answer: C

Rationale: Darbepoetin alfa is used to stimulate red blood cell production in clients with CKD. Monitoring hemoglobin levels is essential to assess the effectiveness of the treatment and to adjust the dosage to avoid complications such as hypertension or thrombosis. Monitoring calcium (Choice A), phosphorus (Choice B), or white blood cell count (Choice D) is not directly related to the effectiveness of darbepoetin alfa in treating anemia associated with CKD.

3. During an inspection of a client's fingernails, the nurse notices a suspected abnormality in the shape and character of the nails. Which finding should the nurse document?

• A. Clubbed nails
• B. Splinter hemorrhages
• C. Longitudinal ridges
• D. Koilonychia or spoon nails

Correct answer: A

Rationale: Clubbed nails are a significant finding in clients with chronic hypoxia or lung disease. This abnormality is characterized by an increased curvature of the nails and softening of the nail bed. It can indicate underlying health conditions such as respiratory or cardiovascular issues. Splinter hemorrhages (B) are small areas of bleeding under the nails, typically associated with infective endocarditis. Longitudinal ridges (C) are often a normal age-related change in the nails. Koilonychia or spoon nails (D) present as a concave shape of the nails and are commonly seen in clients with iron deficiency anemia or hemochromatosis. Therefore, documenting clubbed nails is the most relevant abnormality to report and investigate further.

4. There has been a serious explosion at a local factory, and many of the injured are arriving at the hospital. Which of the following patients should a nurse attend to first?

• A. A 30-year-old male who is able to walk into the hospital on his own but has numerous lacerations on the chest and face
• B. A 45-year-old male who was brought in on a stretcher, has been assessed as having respiration and circulation within normal limits, and can follow simple commands
• C. A 50-year-old woman who can walk but has a broken arm and numerous lacerations
• D. A 19-year-old man who has numerous lacerations all over the body and whose respiration exceeds 30 breaths per minute

Correct answer: D

Rationale: The correct answer is D. The 19-year-old man with a respiration rate exceeding 30 breaths per minute is showing signs of respiratory distress, indicating a potentially life-threatening condition that requires immediate attention. Patients with respiratory distress should be prioritized as it is a critical condition. Choices A, B, and C describe patients with injuries that are less immediately life-threatening or who are more stable based on the provided information, so they can be attended to after the patient with respiratory distress. Therefore, the nurse should attend to the 19-year-old man first to address his respiratory distress and ensure his condition does not deteriorate further.

5. An adult client is undergoing weekly external radiation treatments for breast cancer. Upon arrival at the outpatient clinic for a scheduled treatment, the client reports increasing fatigue to the nurse who is taking the client's vital signs. What action should the nurse implement?

• A. Notify the healthcare provider or charge nurse immediately
• B. Offer to reschedule the treatment for the following week
• C. Plan to monitor the client's vital signs every 30 minutes
• D. Reinforce the need for extra rest periods and plenty of sleep

Correct answer: D

Rationale: Fatigue is a common side effect of radiation therapy. In this scenario, the appropriate action for the nurse to take is to reinforce the importance of rest and adequate sleep. It is crucial to address the client's increasing fatigue by promoting self-care strategies such as additional rest periods and ensuring plenty of sleep. Rescheduling the treatment is not necessary for fatigue, and vital sign monitoring every 30 minutes may not directly address the client's reported symptom. Notifying the healthcare provider or charge nurse immediately is not the first-line intervention for increasing fatigue, as this symptom can be managed through education and self-care recommendations.

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