The nurse is caring for a client who had a central venous catheter placed in the right subclavian vein. Approximately 30 minutes after placement the client has become increasingly restless, has jugular vein distention, and a heart rate of 120 beats per minute. The nurse would assess for which possible complication?
Guidewire-induced dysrhythmia
Pneumothorax
Pulmonary infarction
Venous thrombosis
The Correct Answer is B
A. Guidewire-induced dysrhythmia: Guidewire-induced dysrhythmia can occur if the guidewire or catheter irritates the heart during insertion, particularly when the catheter is placed in the central venous system. While this can lead to arrhythmias, it is typically more immediate and occurs during the procedure itself. The symptoms of dysrhythmia (e.g., irregular heartbeat) would more likely present right after insertion or during the manipulation of the guidewire. The signs of restlessness, JVD, and tachycardia observed 30 minutes after placement are more suggestive of a pneumothorax than of a guidewire-induced dysrhythmia.
B. Pneumothorax: Pneumothorax is a potential complication of central venous catheter (CVC) placement, particularly when the catheter is inserted into the subclavian vein. The right subclavian vein is located near the apex of the lung, so inadvertent puncture of the lung during catheter placement can lead to air entering the pleural space, causing a pneumothorax. The symptoms of pneumothorax may include restlessness, tachycardia, jugular vein distention (JVD), and respiratory distress. A heart rate of 120 beats per minute is consistent with tachycardia due to hypoxia or distress, and JVD can be a sign of increased intrathoracic pressure or impaired venous return, which occurs with a pneumothorax. These symptoms warrant immediate assessment for pneumothorax, which can be confirmed with a chest x-ray.
C. Pulmonary infarction: Pulmonary infarction occurs when a blockage in the pulmonary arteries prevents blood flow to lung tissue, resulting in tissue death. This can be caused by a pulmonary embolism or other issues, but it is not a typical complication of central venous catheter placement. The symptoms described (restlessness, JVD, and tachycardia) are more consistent with a pneumothorax than a pulmonary infarction, which would likely cause chest pain, hemoptysis, or dyspnea rather than these signs.
D. Venous thrombosis: While venous thrombosis (or clot formation) is a potential complication of central venous catheter placement, it typically manifests as swelling, redness, or pain at the catheter insertion site, rather than with the systemic symptoms of restlessness, tachycardia, and JVD. Venous thrombosis could cause some of the described symptoms in the long term, but it is less likely to be the cause of acute symptoms 30 minutes post-procedure. The immediate concern in this case is more likely to be pneumothorax, which can occur more suddenly and cause these symptoms.Top of FormBottom of Form
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Call for the rapid response team and request a portable chest X-ray: While calling for assistance and obtaining a chest X-ray is important for further assessment, the immediate priority is to secure the wound to prevent air from entering the pleural space. This action will help stabilize the patient until the rapid response team arrives and the X-ray can be performed.
B. Turn the suction drainage system off and auscultate breath sounds: Turning off the suction and auscultating breath sounds may be necessary after the wound is secured, but these actions should not take priority over sealing the chest tube site. The focus at this moment is to prevent a tension pneumothorax by sealing the dislodged chest tube site. Auscultation of breath sounds is useful afterward to assess for respiratory complications, but it is not the first action to take.
C. Apply a sterile dressing and tape on three sides: The first action when a chest tube becomes accidentally dislodged is to seal the opening to prevent air from entering the pleural space, which could lead to a pneumothorax (collapsed lung). Applying a sterile dressing and taping it on three sides helps create a temporary one-way valve effect, allowing air to escape from the pleural space but preventing further air from being drawn in. This intervention is crucial to stabilize the patient while awaiting further evaluation and intervention.
D. Notify the healthcare provider immediately: Notifying the healthcare provider is essential, but it is not the first action. The most important initial step is to seal the chest tube site to prevent further complications. After the dressing is applied, the nurse can then notify the healthcare provider and continue to monitor the patient.
Correct Answer is D
Explanation
A. Weighing the client at the same time every day:
While daily weights are important for monitoring fluid status (especially in patients at risk for heart failure or fluid retention), it is not the highest priority in the immediate post-MI period. Weighing the client daily can be useful to track fluid accumulation, but addressing the client’s pain management and oxygenation needs takes precedence in the acute phase of an MI.
B. Assuring hourly urine output of at least 25 mL per hour:
Maintaining adequate urine output (typically around 30 mL per hour) is important to assess renal perfusion and fluid balance, especially if the patient is at risk for renal insufficiency or cardiogenic shock. However, this is not the highest priority immediately following an MI. The first priority is managing the oxygen supply to the heart, and addressing pain and reducing myocardial oxygen demand is more crucial in the acute phase to prevent further damage.
C. Maintaining strict bedrest for the first 24 hours:
Strict bedrest may have been a common practice in the past for patients following an MI, but current guidelines emphasize early mobilization and gradual activity as tolerated to prevent complications like deep vein thrombosis (DVT), pulmonary embolism (PE), and muscle deconditioning. While some degree of rest may be necessary immediately after an MI, the priority is to control pain and reduce oxygen demand, not strictly maintain bedrest. Prolonged immobility is not recommended in the modern management of MI unless there are specific contraindications.
D. Providing pain control and reducing oxygen demand is the most critical intervention in the acute phase of an anterior wall MI. Effective pain relief helps to reduce sympathetic stimulation, which decreases heart rate, blood pressure, and myocardial oxygen demand, preventing further myocardial injury and improving outcomes. This is essential for stabilizing the client early in their post-MI course.
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