Nokea
The nurse is preparing to administer a subcutaneous injection of heparin. What is the correct angle of insertion?
- A. 15 degrees
- B. 30 degrees
- C. 45 degrees
- D. 90 degrees
Correct Answer: C
Rationale: The correct angle of insertion for a subcutaneous injection, such as heparin, is 45 degrees. This angle is appropriate as it helps to ensure proper delivery of the medication into the subcutaneous tissue. Option A (15 degrees) is too shallow for a subcutaneous injection and may result in the medication being deposited into the muscle. Option B (30 degrees) is also too shallow for subcutaneous injections. Option D (90 degrees) is used for intramuscular injections, not subcutaneous injections.
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A client with a diagnosis of bipolar disorder is prescribed lithium. Which electrolyte imbalance should the nurse monitor for?
- A. Hyponatremia
- B. Hypokalemia
- C. Hypercalcemia
- D. Hypernatremia
Correct Answer: A
Rationale: The correct answer is A: Hyponatremia. Lithium can affect sodium levels in the body, potentially leading to hyponatremia, which is a condition characterized by low sodium levels. This imbalance requires close monitoring as it can lead to symptoms such as confusion, weakness, and even seizures. Choices B, C, and D are incorrect because lithium is not primarily associated with causing hypokalemia, hypercalcemia, or hypernatremia. While these imbalances can occur in certain conditions or with other medications, the main electrolyte imbalance to monitor when a client is prescribed lithium is hyponatremia.
During a severe asthma exacerbation in a client, what is the nurse's priority?
- A. Administer a rescue inhaler immediately
- B. Prepare for intubation
- C. Encourage deep breathing exercises
- D. Monitor oxygen saturation levels
Correct Answer: A
Rationale: During a severe asthma exacerbation, the nurse's priority is to administer a rescue inhaler immediately. This action helps open the airways and improve breathing, which is crucial in managing the exacerbation. Choice B, preparing for intubation, would be considered if the client's condition deteriorates and they are unable to maintain adequate oxygenation even after using the rescue inhaler. Encouraging deep breathing exercises (Choice C) may not be appropriate during a severe exacerbation as the client may struggle to breathe. While monitoring oxygen saturation levels (Choice D) is important, the immediate administration of a rescue inhaler takes precedence to address the acute breathing difficulty.
What is the priority nursing action during the immediate postoperative period for a client who just underwent a coronary artery bypass graft?
- A. Monitor for signs of infection
- B. Ensure the client is pain-free
- C. Assess for bleeding and arrhythmias
- D. Maintain a patent airway
Correct Answer: D
Rationale: Maintaining a patent airway is the priority nursing action during the immediate postoperative period for a client who just underwent a coronary artery bypass graft. This is crucial to ensure adequate oxygenation, especially in the early recovery phase. Monitoring for signs of infection, ensuring the client is pain-free, and assessing for bleeding and arrhythmias are important aspects of postoperative care but maintaining a clear airway takes precedence in this scenario to prevent hypoxia and respiratory compromise. In the immediate postoperative period, maintaining a patent airway is essential to prevent complications such as airway obstruction, hypoxia, and respiratory distress, which are critical in ensuring the client's safety and recovery.
The healthcare provider is providing discharge instructions to a client with chronic heart failure. Which dietary recommendation is most appropriate?
- A. Increase fluid intake.
- B. Follow a low-sodium diet.
- C. Follow a high-protein diet.
- D. Increase sodium intake.
Correct Answer: B
Rationale: The most appropriate dietary recommendation for a client with chronic heart failure is to follow a low-sodium diet. This helps manage the condition by reducing fluid retention and the workload on the heart. High fluid intake can lead to fluid overload and exacerbate heart failure symptoms. While protein is important for overall health, a high-protein diet is not specifically indicated for chronic heart failure. Increasing sodium intake is contraindicated in heart failure as it can worsen fluid retention and increase the workload on the heart.
After placement of a left subclavian central venous catheter (CVC), the nurse receives a report of the X-ray findings indicating that the CVC tip is in the client's superior vena cava. Which action should the nurse implement?
- A. Remove the catheter and apply direct pressure for 5 minutes.
- B. Initiate intravenous fluids as prescribed.
- C. Secure the catheter using aseptic technique.
- D. Notify the healthcare provider of the need to reposition the catheter.
Correct Answer: B
Rationale: Initiating intravenous fluids as prescribed is the appropriate action when the CVC tip is correctly placed in the superior vena cava. Intravenous fluids can now be administered effectively through the central line. Removing the catheter and applying direct pressure is unnecessary and not indicated as the tip is in the correct position. Securing the catheter using aseptic technique is important for preventing infections but is not the immediate action needed in this situation. Notifying the healthcare provider of the need to reposition the catheter may delay necessary fluid administration, which is the priority at this time.