The nurse is caring for a patient who is on mechanical ventilation and the high pressure alarm is sounding. Which of the following is the most likely cause?
The patient is coughing
The ETT has a cuff leak
The ventilator tubing has become disconnected
The patient is complaining of a headache 8/10 pain
The Correct Answer is A
Choice A reason:
The patient coughing is the most likely cause of the high pressure alarm on a mechanical ventilator. Coughing can increase airway resistance and pressure, triggering the alarm. This is a common occurrence and should be addressed by assessing the patient's need for suctioning or other interventions to relieve the cough.
Choice B reason:
An endotracheal tube (ETT) cuff leak would typically cause a low pressure alarm, not a high pressure alarm. A cuff leak results in a loss of pressure within the ventilator circuit, leading to insufficient ventilation and a different alarm response.
Choice C reason:
If the ventilator tubing becomes disconnected, it would result in a low pressure alarm due to the loss of circuit integrity. A disconnection is a serious issue that needs immediate correction but does not cause high pressure alarms.
Choice D reason:
The patient's complaint of a headache does not directly relate to a high pressure alarm on the ventilator. While patient discomfort should always be addressed, it is not the most likely cause of the alarm in this scenario.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A reason:
Monitoring sodium levels is important when administering mannitol, but it is not the primary indicator of the drug's effectiveness. Mannitol is an osmotic diuretic used to reduce intracranial pressure, and its effectiveness is better assessed by other means.
Choice B reason:
Fluid intake is important to monitor to ensure proper hydration status, but it does not directly indicate the effectiveness of mannitol. The primary focus should be on the patient's output to assess the diuretic effect.
Choice C reason:
Heart rate monitoring is essential for overall patient care but does not directly indicate the effectiveness of mannitol. Changes in heart rate can occur due to various factors and are not specific to mannitol's action.
Choice D reason:
Urine output is the most direct measure of mannitol's effectiveness. As an osmotic diuretic, mannitol promotes diuresis, and increased urine output indicates that the drug is effectively reducing intracranial pressure.
Correct Answer is C
Explanation
Choice A reason:
The application of PEEP does not inherently increase the need for FiO2 (fraction of inspired oxygen) administration. PEEP helps improve oxygenation, potentially reducing the need for higher FiO2 levels.
Choice B reason:
While PEEP can contribute to better lung inflation by keeping the alveoli open, this is a secondary effect. The primary goal of PEEP is to prevent alveolar collapse at the end of expiration.
Choice C reason:
PEEP prevents alveolar collapse during expiration, which is its primary therapeutic effect. By maintaining a certain level of pressure in the lungs at the end of expiration, PEEP ensures that the alveoli remain open, improving gas exchange and oxygenation.
Choice D reason:
Although PEEP can help reduce the risk of atelectasis (collapse of part or all of a lung), it does not directly prevent barotrauma. Barotrauma is related to high airway pressures, and careful monitoring of ventilator settings is necessary to avoid it.
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