A nurse is caring for a client who is receiving oxygen therapy via a nasal cannula. How should the nurse explain to the client how this method of oxygen delivery performs?
Delivers a low concentration of oxygen.
Delivers a constant rate of oxygen.
Delivers a high concentration of oxygen.
Delivers a constant flow of a specific concentration of oxygen.
The Correct Answer is D
Choice A Reason:
“Delivers a low concentration of oxygen” is incorrect because a nasal cannula can deliver varying concentrations of oxygen depending on the flow rate set by the healthcare provider. The concentration can range from low to moderate, typically between 24% to 44%.
Choice B Reason:
“Delivers a constant rate of oxygen” is partially correct but not entirely accurate. While the flow rate can be constant, the key aspect is the specific concentration of oxygen delivered, which is more relevant to the client’s understanding.
Choice C Reason:
“Delivers a high concentration of oxygen” is incorrect because nasal cannulas are generally used for low to moderate oxygen delivery. High concentrations of oxygen are typically delivered through other devices like non-rebreather masks or high-flow nasal cannulas.
Choice D Reason:
“Delivers a constant flow of a specific concentration of oxygen” is correct. This explanation accurately describes how a nasal cannula works. It provides a continuous flow of oxygen at a specific concentration, which is adjusted based on the client’s needs and the healthcare provider’s prescription.

Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason: Consulting the family priest may provide spiritual support and guidance to the family, but it is not the most appropriate action for resolving a medical and ethical dilemma. The family priest may not have the necessary medical or ethical expertise to address the complexities of the situation
Choice B reason: The ethics committee is the appropriate body to consult in this situation. Ethics committees are composed of healthcare professionals, ethicists, and legal advisors who can provide guidance on complex ethical issues. They can help navigate the conflict between the parents’ religious beliefs and the medical necessity of the blood transfusion for the newborn. The committee can also ensure that the hospital’s actions align with legal and ethical standards.
Choice C reason: The Joint Commission is an accrediting body for healthcare organizations and does not provide direct assistance in individual patient care situations. While the Joint Commission sets standards for ethical practices, it is not involved in resolving specific ethical dilemmas at the patient level.
Choice D reason: The blood bank is responsible for the collection, testing, and distribution of blood products. While they can provide information about blood transfusions, they are not equipped to handle ethical conflicts related to the refusal of blood transfusions on religious grounds. The ethics committee is better suited for this role.
Correct Answer is A
Explanation
Choice A Reason:
Fiber is correct. Fiber is essential for maintaining healthy bowel elimination. It helps to add bulk to the stool and promotes regular bowel movements. There are two types of fiber: soluble and insoluble. Soluble fiber absorbs water and forms a gel-like substance, which helps soften the stool and make it easier to pass. Insoluble fiber adds bulk to the stool and helps it move through the digestive tract more quickly.

Choice B Reason:
Fat is incorrect. While fats are an important part of a balanced diet, they do not play a primary role in maintaining healthy bowel elimination. Fats are essential for energy and the absorption of fat-soluble vitamins, but they do not have the same effect on bowel movements as fiber.
Choice C Reason:
Protein is incorrect. Protein is crucial for building and repairing tissues, but it does not directly influence bowel elimination. A diet high in protein without adequate fiber can sometimes lead to constipation.
Choice D Reason:
Minerals are incorrect. Minerals are vital for various bodily functions, including bone health, fluid balance, and muscle function. However, they do not directly impact bowel elimination in the same way that fiber does.
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