A patient is on the ventilator and a high-pressure alarm sounds. The nurse should assess for which of these possible causes for the alarm?
The patient may need suctioning
The patient extubated himself
The ventilator tubing may be disconnected.
The cuff at the end of the endotracheal tube is deflated.
The Correct Answer is A
A. The patient may need suctioning:
A high-pressure alarm indicates increased resistance to airflow, which could be caused by secretions or mucus in the airways. Suctioning is the appropriate intervention to clear the airways of excess secretions, reducing airway resistance and preventing the high-pressure alarm.
B. The patient extubated himself:
If the patient extubates himself (removes the endotracheal tube), this may result in a low-pressure alarm, not a high-pressure alarm. The low-pressure alarm is triggered when there is a loss of pressure within the ventilator circuit due to disconnection or extubation.
C. The ventilator tubing may be disconnected:
If the ventilator tubing is disconnected, it is more likely to trigger a low-pressure alarm, indicating a loss of pressure in the ventilator circuit. This is not the primary cause of increased resistance seen with a high-pressure alarm.
D. The cuff at the end of the endotracheal tube is deflated:
A deflated cuff can lead to air leakage around the endotracheal tube but is not the primary cause of increased airway resistance seen with a high-pressure alarm. It may cause a low-pressure alarm if cuff pressure is monitored.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Encourage oral intake of at least 3,000 mL of fluids per day:
This is not a priority intervention for ARDS. While maintaining adequate hydration is important, the primary focus in ARDS is on respiratory support and oxygenation. Excessive fluid intake may exacerbate pulmonary edema in these patients.
B. Offer high-protein and high-carbohydrate foods frequently:
Nutritional support is important in ARDS, but the primary concern is oxygenation and respiratory function. Offering high-protein and high-carbohydrate foods can support the client's overall nutritional needs, but it may not directly address the respiratory distress.
C. Administer low-flow oxygen continuously via nasal cannula:
This is not typically sufficient for ARDS. ARDS often requires higher levels of oxygen support, and low-flow oxygen may not meet the increased oxygen demand. More aggressive oxygenation strategies, such as non-invasive positive pressure ventilation (NIPPV) or mechanical ventilation, may be necessary.
D. Place in a prone position:
Placing the patient in a prone position is a recommended intervention for ARDS. Prone positioning can improve oxygenation by optimizing ventilation-perfusion matching and reducing pressure on the lungs. This intervention is aimed at improving respiratory function in ARDS patients.
Correct Answer is C
Explanation
A. A client who is taking a thiazide diuretic:
Thiazide diuretics can cause loss of potassium and metabolic alkalosis, not metabolic acidosis.
B. A client who is vomiting:
Vomiting can lead to the loss of stomach acid (hydrochloric acid) and may result in metabolic alkalosis, not metabolic acidosis.
C. A client who has diarrhea.
Diarrhea can lead to the loss of bicarbonate, an important buffer in the body that helps maintain acid-base balance. The loss of bicarbonate in diarrhea can result in an excess of acid, contributing to metabolic acidosis.
D. A client who is having an acute anxiety attack:
Acute anxiety is not typically associated with metabolic acidosis. It is not directly related to changes in acid-base balance.
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