A client is wearing a Venturi mask to deliver oxygen and the dinner tray has arrived. What action by the nurse is best?
Assess the client’s oxygen saturation and, if normal, turn off the oxygen.
Have the client lift the mask off the face when taking bites of food.
Turn the oxygen off while the client eats the meal and then restart it.
Determine if the client can switch to a nasal cannula during the meal
The Correct Answer is D
Choice A Reason:
Assess the client’s oxygen saturation and, if normal, turn off the oxygen. This option is not ideal because turning off the oxygen completely can lead to a rapid drop in oxygen saturation levels, especially in patients who require continuous oxygen therapy. Monitoring oxygen saturation is crucial, but turning off the oxygen is not recommended unless specifically advised by a healthcare provider. Normal oxygen saturation levels typically range from 95% to 100%1. If the levels drop below 90%, it can lead to hypoxemia, which can cause serious complications.
Choice B Reason:
Have the client lift the mask off the face when taking bites of food. This option is also not ideal because it can be cumbersome for the client and may lead to inconsistent oxygen delivery. The Venturi mask is designed to provide a precise concentration of oxygen, and lifting it off repeatedly can disrupt this consistency. Additionally, it can be uncomfortable and impractical for the client to manage the mask while eating.
Choice C Reason:
Turn the oxygen off while the client eats the meal and then restart it. This option is not recommended for similar reasons as Choice A. Turning off the oxygen can lead to a significant drop in oxygen saturation levels, which can be dangerous for the client. Continuous oxygen therapy is essential for maintaining adequate oxygen levels in patients who require it. Interrupting this therapy, even temporarily, can have adverse effects on the client’s health.
Choice D Reason:
Determine if the client can switch to a nasal cannula during the meal. This is the best option because a nasal cannula allows the client to receive continuous oxygen while eating. The nasal cannula is less obtrusive and more comfortable for the client, enabling them to eat without significant interruption to their oxygen therapy. Nasal cannulas are commonly used for patients who need supplemental oxygen but also need to perform activities such as eating and talking. This approach ensures that the client maintains adequate oxygen levels while having their meal.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["C","E"]
Explanation
Choice A: Formed stool in collection pouch
Formed stool in the collection pouch is not expected in an ileostomy. The output from an ileostomy is typically liquid to semi-liquid because the ileum does not absorb as much water as the colon. If formed stool is present, it may indicate a blockage or other issue that needs to be addressed.
Choice B: Stoma is edematous and bleeding
An edematous and bleeding stoma is not a normal finding and may indicate complications such as infection, trauma, or poor stoma care. The stoma should be moist and pink, but not swollen or bleeding. Persistent bleeding or significant edema should be reported to a healthcare provider immediately.
Choice C: Stoma is pink and shiny
A pink and shiny stoma is a sign that the ileostomy is functioning well. This indicates good blood flow and healthy tissue. The stoma should always appear moist and pink, similar to the inside of the mouth. Any deviation from this appearance, such as a pale, dark, or dry stoma, should be evaluated by a healthcare professional.

Choice D: Skin excoriation around the stoma
Skin excoriation around the stoma is not a normal finding and suggests that the skin is being irritated by the stoma output or the ostomy appliance. Proper skin care and fitting of the ostomy appliance are essential to prevent skin breakdown. If excoriation occurs, it should be treated promptly to prevent further complications.
Choice E: Mucus liquid flows from the stoma
Mucus liquid flowing from the stoma is expected in an ileostomy. The output is typically liquid to semi-liquid and may contain mucus, which is normal for the small intestine. This type of output indicates that the ileostomy is functioning as intended.
Correct Answer is A
Explanation
Choice A Reason:
Constant bubbling in the water seal chamber of a chest drainage system typically indicates an air leak. This can occur if there is a break in the system, allowing air to enter. The air leak could be from the chest tube insertion site, the tubing, or the drainage system itself. Identifying and correcting the source of the air leak is crucial to ensure the system functions properly and the patient’s condition does not worsen.
Choice B Reason:
A tension pneumothorax is a life-threatening condition where air accumulates in the pleural space and cannot escape, leading to increased pressure on the lungs and other thoracic structures. While a tension pneumothorax can cause significant respiratory distress, it is not typically indicated by constant bubbling in the water seal chamber. Instead, signs of tension pneumothorax include tracheal deviation, hypotension, and severe respiratory distress.
Choice C Reason:
A kink in the tubing of a chest drainage system can obstruct the flow of air and fluid, but it does not cause constant bubbling in the water seal chamber. Instead, a kink would likely result in a lack of drainage or intermittent bubbling as the obstruction temporarily blocks and then allows passage of air or fluid.
Choice D Reason:
Increased drainage in a chest tube system indicates that more fluid or air is being removed from the pleural space, but it does not cause constant bubbling in the water seal chamber. Increased drainage might be seen in cases of hemothorax or pleural effusion, where large amounts of fluid are present.
Choice E Reason:
Tidaling refers to the normal rise and fall of water in the water seal chamber with the patient’s respiratory cycle. It indicates that the chest tube is patent and functioning correctly. Absence of tidaling could suggest that the lung has fully re-expanded or that there is an obstruction in the system. However, tidaling itself does not cause constant bubbling.
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