A nurse is caring for a client in a critical care unit who suffered a knife wound to the chest. The nurse suspects the client is developing cardiac tamponade. Which of the following assessment findings should the nurse identify as supporting this suspicion?
Bradycardia.
Muffled heart sounds
Flattened neck veins.
Sudden lethargy.
The Correct Answer is B
B. Muffled heart sounds, often described as distant or indistinct, are classic findings in cardiac tamponade. The accumulation of fluid in the pericardial sac dampens the transmission of sound from the heart to the chest wall, resulting in muffled heart sounds on auscultation. This finding is known as Beck's triad, which also includes hypotension and jugular venous distention.
A. Bradycardia is not a typical finding in cardiac tamponade. In fact, tachycardia is more commonly observed due to the compensatory response to decreased cardiac output and decreased stroke volume. The sympathetic nervous system is activated, leading to an increase in heart rate as a compensatory mechanism to maintain cardiac output.
C. Flattened neck veins are not consistent with cardiac tamponade. In cardiac tamponade, jugular venous distention (JVD) is typically observed due to increased venous pressure resulting from impaired right ventricular filling. The presence of JVD is an important clinical finding in cardiac tamponade and can help differentiate it from other causes of shock.
D. Sudden lethargy can occur in various medical emergencies, including cardiac tamponade, but it is not a specific or diagnostic finding for this condition. In cardiac tamponade, symptoms may include dyspnea, chest pain, hypotension, and signs of decreased cardiac output such as cool extremities and altered mental status. However, sudden lethargy alone may not be specific enough to confirm cardiac tamponade.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
B. In a closed chest drainage system, slow and steady bubbling in the suction control chamber is typically an expected finding, as it indicates that the suction is active and functioning properly
A. Checking the tubing connections for leaks or the suction control outlet on the wall might be necessary if there were signs of a problem with the system's function.
C. Checking the suction control outlet on the wall is a reasonable action to ensure that the suction source is functioning appropriately and delivering the prescribed suction pressure to the chest drainage system. If there are any issues with the suction control outlet, they should be addressed to maintain proper suction.
D. Clamping the chest tube is not indicated based solely on the presence of slow, steady bubbling in the suction control chamber. Clamping the chest tube could obstruct drainage and lead to complications such as tension pneumothorax or retained hemothorax.
Correct Answer is ["B","C","D","E","F"]
Explanation
B. Continuous monitoring of vital signs, including blood pressure, heart rate, respiratory rate, and oxygen saturation, is essential for assessing the patient's hemodynamic status and response to treatment.
Additionally, continuous electrocardiographic (ECG) monitoring allows for real-time assessment of cardiac rhythm and conduction abnormalities.
C. This is an important nursing action to provide comfort and reduce anxiety for the patient. Transcutaneous pacing is often used as a temporary measure to stabilize heart rate and cardiac output until more definitive treatment, such as insertion of a permanent pacemaker, can be performed.
D. Atropine is another medication commonly used in ACLS protocols for symptomatic bradycardia and heart block. It acts to increase heart rate by blocking vagal tone. However, its effectiveness in third- degree heart block may be limited, and transcutaneous pacing is often the preferred intervention in this situation.
E. Correct placement of transcutaneous pacemaker pads is crucial for effective pacing. The pads should be placed on the chest over the heart to deliver electrical impulses and stimulate myocardial contraction. Proper placement ensures optimal pacing effectiveness and patient safety.
F. This nursing action addresses the patient's comfort and pain management following the placement of the transcutaneous pacemaker. The procedure may cause discomfort or pain, and appropriate analgesia should be provided to alleviate any discomfort and promote patient comfort.
A. Epinephrine is a medication commonly used in advanced cardiac life support (ACLS) protocols for bradycardia and heart block. In this scenario, the patient's heart rate has decreased to 40 beats/minute, indicating symptomatic bradycardia and potential hemodynamic instability. Epinephrine may be administered to increase heart rate and improve cardiac output.
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