A nurse is reviewing oxygen therapy with a group of new graduates. Which of the following statements indicate a correct understanding of oxygen therapy?
(Select All that Apply.)

A Venturi mask allows for precise oxygen concentration delivery.

Oxygen should be humidified when delivered at flow rates higher than 4 liters per minute.

Oxygen toxicity can occur when high concentrations of oxygen are administered for extended periods.

Nasal cannulas can deliver oxygen concentrations up to 90%.

Oxygen therapy is always safe regardless of the patient's condition.

A simple face mask can deliver higher oxygen concentrations than a non-rebreather mask.

Answer and Explanation

Correct Answer : A,B,C

A.   A Venturi mask is an accurate way to deliver a specific concentration of oxygen, allowing for precise control.
B.   Humidifying oxygen is recommended at flow rates higher than 4 liters per minute to prevent drying of the mucous membranes.
C.   Oxygen toxicity can occur if high concentrations of oxygen are administered for prolonged periods, leading to potential lung damage.
D.   Nasal cannulas typically provide a lower oxygen concentration than higher-flow devices, like a Venturi mask or non-rebreather mask.
E.   Oxygen therapy is not always entirely safe regardless of the patient's condition; certain conditions require careful monitoring to prevent complications.

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Correct Answer is ["D","E"]

Explanation

A. Discoloration of the fingers is not typically associated with carpal tunnel syndrome, which mainly involves nerve compression.
B. Swelling of the entire hand is not a common finding in carpal tunnel syndrome, though localized swelling at the wrist may occur.
C. Pain in the forearm without hand involvement is not typical of carpal tunnel syndrome, which primarily affects the wrist and hand.
D. A positive Phalen's test is indicative of carpal tunnel syndrome, as it reproduces symptoms when the wrist is flexed.
E. A positive Tinel's sign, which involves tapping the median nerve at the wrist to elicit symptoms, is a classic test for carpal tunnel syndrome.
F. Pain relief with wrist extension is common in carpal tunnel syndrome, as extending the wrist relieves pressure on the median nerve.

A. Increase oxygen flow rate if the patient appears anxious. B. Administer high-flow oxygen to quickly relieve hypoxemia. C. Monitor the patient's respiratory rate and effort frequently. D. Adjust oxygen flow rate to maintain a saturation level of 88-92%. E. Use a non-rebreather mask to maximize oxygen delivery. F. Encourage the patient to take deep breaths frequently.

Correct Answer is ["C","D"]

Explanation

A. Increasing the oxygen flow rate due to anxiety can worsen carbon dioxide retention, which is dangerous in COPD patients.
B. High-flow oxygen is typically not recommended for COPD patients because it can suppress respiratory drive.
C. Monitoring the respiratory rate and effort is crucial to ensure the patient is not retaining carbon dioxide or experiencing further respiratory distress.
D. Adjusting the oxygen flow rate to maintain a saturation level of 88-92% is recommended for COPD patients to prevent hypercapnia.
E. A non-rebreather mask is generally not used for COPD patients, as it can deliver too much oxygen, leading to carbon dioxide retention.
F. Encouraging deep breathing can help, but it is more important to focus on maintaining the proper oxygen saturation.

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A nurse is reviewing oxygen therapy with a group of new graduates. Which of the following statements indicate a correct understanding of oxygen therapy? (Select All that Apply.)

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is assessing a patient who reports numbness and tingling in the fingers, especially at night. The patient works as a data entry clerk. Which findings support a diagnosis of carpal tunnel syndrome? (Select All that Apply.)

Correct Answer is ["D","E"]

Explanation

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Correct Answer is ["C","D"]

Explanation

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A nurse is reviewing oxygen therapy with a group of new graduates. Which of the following statements indicate a correct understanding of oxygen therapy?
(Select All that Apply.)