The nurse is caring for a client receiving mechanical ventilation. The nurse hears the low-pressure alarm sound. After checking the client and ventilator, the nurse cannot determine the source of the alarm. What should the nurse do next?
Notify the health care provider
Insert an oral airway to prevent the client from biting the tube
Suction the client and reset the alarm
Disconnect the client from the ventilator and use a manual resuscitation bag
The Correct Answer is D
A. Notify the healthcare provider: While notifying the healthcare provider may eventually be necessary, the first priority is to ensure the client's airway is protected and they are receiving adequate ventilation. The provider can be notified after immediate interventions have been made to stabilize the patient.
B. Insert an oral airway to prevent the client from biting the tube: Inserting an oral airway may be necessary if the client is biting the endotracheal tube, but this is unlikely the first action needed in response to a low-pressure alarm. If the client is not biting the tube, this action will not address the potential causes of the low-pressure alarm, such as a disconnection, leak, or circuit issue.
C. Suction the client and reset the alarm: While suctioning is an important intervention if secretions are the cause of ventilation issues, it is not the first action when the source of the low-pressure alarm is unclear. If a disconnection or leak is the issue, suctioning will not resolve the problem, and the nurse risks delaying appropriate action to address the source of the alarm. The priority is ensuring the client’s ventilation is not compromised, which is best accomplished by using a manual resuscitation bag until the problem is identified and corrected.
D. Disconnect the client from the ventilator and use a manual resuscitation bag: If the source of the low-pressure alarm cannot be identified after checking the client and the ventilator, the first priority is to ensure that the client continues to receive adequate ventilation. Disconnecting the client from the ventilator and using a manual resuscitation bag (Ambu bag) allows for immediate support of the patient's ventilation while the nurse investigates the cause of the alarm. This ensures the client's oxygenation and ventilation needs are met until the problem is resolved. It is critical to address any potential loss of positive pressure or leaks in the ventilator system promptly to avoid respiratory distress or failure.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
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.
Correct Answer is B
Explanation
A. A systolic murmur: A systolic murmur is often associated with valvular heart disease, particularly mitral regurgitation, which can sometimes result from papillary muscle dysfunction after a myocardial infarction. However, a systolic murmur is not a typical or immediate complication following an anterior-lateral wall MI. The focus in the early hours after an MI should be on more acute complications, such as dysrhythmias and hemodynamic stability, rather than a murmur, which may develop more gradually over time.
B. Ventricular dysrhythmias: Ventricular dysrhythmias are one of the most common and life-threatening complications in the immediate hours following an acute myocardial infarction (MI), especially with an anterior-lateral wall MI. These dysrhythmias occur due to the electrical disturbances caused by myocardial injury and ischemia. The heart muscle becomes more susceptible to abnormal electrical activity after the infarction, and monitoring for ventricular tachycardia or fibrillation is crucial. These arrhythmias can lead to sudden cardiac arrest, which is why they are a high priority for monitoring in the immediate post-MI period.
C. A pericardial friction rub: A pericardial friction rub is a sign of pericarditis, which can occur after an MI, particularly several days to a week later, rather than in the immediate post-MI period. While pericarditis is a possible complication of MI, it is less likely to present immediately after the infarction, especially in the first few hours. The nurse should monitor for pericarditis, but it is not as high a priority as dysrhythmias during the first hours after MI.
D. Renal insufficiency: While renal insufficiency can develop as a result of poor perfusion or shock following a myocardial infarction, it is not one of the most immediate or common complications to watch for in the first hours after an anterior-lateral MI. The primary concern in this acute phase is monitoring for cardiovascular complications, such as dysrhythmias, rather than renal function. Renal insufficiency would be a secondary concern, particularly if the patient is hypotensive or experiencing other signs of multi-organ involvement.
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