A nurse is caring for a patient who requires oxygen therapy due to hypoxia. What is the goal of oxygen therapy for this patient?

To provide the highest fraction of inspired oxygen (FiO2) possible.

To use the lowest FiO2 that achieves an acceptable blood oxygen level without harmful side effects.

To maintain a constant FiO2 regardless of the patient's breathing pattern.

To deliver a fixed amount of oxygen that is independent of the patient's condition.

Answer and Explanation

The Correct Answer is B

Choice A rationale:

The goal of oxygen therapy is not to provide the highest fraction of inspired oxygen (FiO2) possible. This approach can be harmful because excessively high FiO2 levels can lead to oxygen toxicity and other side effects, especially in patients with certain conditions like chronic obstructive pulmonary disease (COPD).

Choice B rationale:

The goal of oxygen therapy is to use the lowest FiO2 that achieves an acceptable blood oxygen level without harmful side effects. This approach is known as titrating the oxygen therapy to the patient's needs and helps prevent potential complications associated with excessive oxygen administration.

Choice C rationale:

Maintaining a constant FiO2 regardless of the patient's breathing pattern is not the goal of oxygen therapy. In some cases, patients may require varying FiO2 levels based on their respiratory status, so it is essential to adjust the oxygen delivery accordingly.

Choice D rationale:

Delivering a fixed amount of oxygen that is independent of the patient's condition is not the goal of oxygen therapy. Oxygen therapy should be individualized and tailored to the patient's specific needs to optimize its effectiveness and safety.

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Correct Answer is A

Explanation

Choice A rationale:

At a flow rate of 4 L/min, oxygen therapy through a nasal cannula can increase the risk of oxygen toxicity, especially if used for prolonged periods. Oxygen toxicity can cause damage to the lungs and other organs.

Choice B rationale:

Carbon dioxide retention is not a common complication at this flow rate. It may occur in patients with severe chronic obstructive pulmonary disease (COPD) at higher oxygen flow rates.

Choice C rationale:

Nasal dryness is a common but relatively minor complication of oxygen therapy via nasal cannula. It can cause discomfort but is not a severe concern.

Choice D rationale:

Fire hazard is not directly related to the use of a nasal cannula but rather to the use of oxygen in the presence of flammable materials or near open flames. It is a concern for all oxygen delivery devices, not specific to nasal cannulas.

A. Venturi mask. B. Non-rebreather mask. C. Aerosol mask. D. Simple face mask. E. Tracheostomy collar.

Correct Answer is ["A","C","E"]

Explanation

The correct answers are choices A, C, and E.

Choice A rationale:

A Venturi mask is designed to deliver a precise concentration of oxygen and is often used in COPD, where it is important not to over-oxygenate the patient. It allows for the adjustment of oxygen concentration by changing the color-coded entrainment adapters.

Choice B rationale:

A non-rebreather mask is not typically used for clients who require a precise concentration of oxygen because it is designed to deliver high concentrations of oxygen, but without a way to precisely control the amount.

Choice C rationale:

An aerosol mask can be used with a nebulizer system to deliver specific concentrations of oxygen along with medication, which is beneficial for COPD patients who may need bronchodilators or steroids in addition to oxygen therapy.

Choice D rationale:

A simple face mask is not suitable for delivering a precise concentration of oxygen as it does not allow for the fine control needed for COPD patients. It is generally used for short-term oxygen therapy and for patients who require a moderate amount of oxygen.

Choice E rationale:

A tracheostomy collar can provide a specific concentration of oxygen when used with a tracheostomized patient and is suitable for long-term use in COPD patients who have a tracheostomy.

In summary, for a client with COPD who requires a precise concentration of oxygen, the Venturi mask, aerosol mask, and tracheostomy collar are appropriate choices as they allow for the delivery of a specific and controlled amount of oxygen.

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A nurse is caring for a patient who requires oxygen therapy due to hypoxia. What is the goal of oxygen therapy for this patient?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is caring for a client who has hypoxemia and is receiving oxygen therapy via nasal cannula at 4 L/min. The nurse should monitor the client for which of the following complications of oxygen therapy?

Correct Answer is A

Explanation

(Select all that apply) A nurse is preparing to administer oxygen therapy to a client who has COPD and requires a precise concentration of oxygen. Which of the following devices should the nurse use for this client?

Correct Answer is ["A","C","E"]

Explanation

A nurse is assessing a patient who is receiving oxygen therapy via venturi mask. The nurse hears a hissing sound from the mask and observes that the patient's skin color is pale. What should the nurse say to the patient?

A nurse is assessing a patient who has been using a nasal cannula for oxygen therapy. The patient complains of nasal dryness and irritation. What intervention should the nurse implement?

A nurse is evaluating the effectiveness of oxygen therapy for a patient who has COPD. The nurse notes that the patient's PaO2 is 65 mmHg and SaO2 is 88%. What should the nurse say to the patient?

A nurse is caring for a patient who is receiving oxygen therapy via partial rebreather mask at 10 L/min. The nurse should instruct the patient to do which of the following to ensure effective oxygen delivery?

A nurse is teaching a client who is going home on continuous liquid oxygen therapy. The client asks the nurse, "How do I know when to refill the oxygen tank?”. Which of the following responses should the nurse give?

What is the most appropriate oxygen delivery device for a client with thick secretions, dry mucous membranes, or upper airway edema?

(Select all that apply): A nurse is educating a group of patients about different oxygen delivery devices. Which of the following are examples of low-flow oxygen delivery systems?

A nurse is planning care for a patient who has a tracheostomy and requires oxygen therapy via tracheostomy collar. Which of the following interventions should the nurse include in the plan of care?