A client needs 5 liters of oxygen. Which of the following devices is appropriate for use with an oxygen flow rate of 5 liters? Select all that apply:
High-flow nasal cannula
Simple face mask
Nasal cannula
Non-rebreather mask
Venturi mask
Correct Answer : B,C
Choice A Reason: High-flow nasal cannula
The high-flow nasal cannula (HFNC) is designed to deliver oxygen at flow rates much higher than 5 liters per minute, typically ranging from 20 to 60 liters per minute. It is used for patients requiring high levels of oxygen and positive airway pressure. Therefore, it is not appropriate for a flow rate of 5 liters per minute.
Choice B Reason: Simple face mask
The simple face mask is suitable for delivering oxygen at flow rates between 6 to 10 liters per minute. However, it can also be used at a flow rate of 5 liters per minute, providing an FiO2 (fraction of inspired oxygen) of approximately 40-60%. This makes it an appropriate choice for the given requirement.
Choice C Reason: Nasal cannula
The nasal cannula is a low-flow oxygen delivery device that can deliver oxygen at flow rates from 1 to 6 liters per minute. At 5 liters per minute, it provides an FiO2 of approximately 40%. It is comfortable for patients and is commonly used for those who need a moderate amount of supplemental oxygen.
Choice D Reason: Non-rebreather mask
The non-rebreather mask is designed to deliver high concentrations of oxygen, typically at flow rates of 10 to 15 liters per minute. It is used in situations where patients need a high FiO2, close to 100%. Therefore, it is not suitable for a flow rate of 5 liters per minute.
Choice E Reason: Venturi mask
The Venturi mask is used to deliver precise oxygen concentrations, typically ranging from 24% to 60% FiO2. It is suitable for patients who require controlled oxygen therapy. While it can be adjusted to deliver oxygen at a flow rate of 5 liters per minute, it is generally used for more specific FiO2 requirements.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A"]
Explanation
Choice A: Monitor for hypernatremia.
Hypernatremia, or high sodium levels in the blood, is a common complication of diabetes insipidus due to excessive water loss and insufficient water intake. Monitoring for hypernatremia involves regular blood tests to check sodium levels. Symptoms of hypernatremia include extreme thirst, confusion, muscle twitching, and seizures. Early detection and management are crucial to prevent severe complications.
Choice B: Monitor neuro status.
Monitoring neurological status is essential in patients with diabetes insipidus because severe hypernatremia can lead to neurological symptoms such as confusion, irritability, seizures, and even coma. Regular assessments of mental status, level of consciousness, and neurological function help in early detection of complications and timely intervention.
Choice C: Monitor for hyponatremia.
While hyponatremia (low sodium levels) is less common in diabetes insipidus, it can occur if there is excessive water intake without adequate sodium replacement. Symptoms include headache, nausea, vomiting, confusion, and seizures. Monitoring sodium levels helps in maintaining a balance and preventing complications.
Choice D: Monitor urine specific gravity.
Urine specific gravity measures the concentration of solutes in the urine. In diabetes insipidus, urine is typically very dilute, with a specific gravity of less than 1.005. Regular monitoring helps in assessing the effectiveness of treatment and the patient’s hydration status. It also aids in differentiating diabetes insipidus from other conditions with similar symptoms.
Choice E: Monitor strict I&O.
Strict monitoring of intake and output (I&O) is crucial in managing diabetes insipidus. This involves accurately measuring all fluids consumed and excreted to ensure proper hydration and electrolyte balance. It helps in identifying trends in fluid loss and guiding appropriate fluid replacement therapy.
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.
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