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 ["260"]
Explanation
-
Calculation
- Enteral nutrition: 200 mL
- Water flush before feed: 30 mL
- Water flush after feed: 30 mL
Total intake = 200 mL + 30 mL + 30 mL = 260 mL
The nurse should document 260 mL as intake in the I&O.
Correct Answer is C
Explanation
Choice A Reason:
A pureed diet consists of foods that are blended to a smooth consistency. This type of diet is typically recommended for clients who have severe swallowing difficulties or are at risk of aspiration. While it can be easier to consume for those with significant dental issues, it may not provide the variety and texture that a mechanical soft diet offers, which can be more satisfying and nutritionally adequate for someone with multiple cavities and missing teeth.
Choice B Reason:
A soft diet includes foods that are easy to chew and swallow but are not necessarily blended or pureed. This diet is often recommended for clients recovering from surgery or those with mild chewing difficulties. However, for a client with multiple cavities, chipped, and missing teeth, a soft diet might still pose challenges in terms of chewing and could lead to discomfort or inadequate nutrition.
Choice C Reason:
A mechanical soft diet is specifically designed for individuals who have difficulty chewing but do not require pureed foods. This diet includes foods that are easy to chew and swallow, such as ground meats, cooked vegetables, and soft fruits. It provides a balance of texture and nutrition, making it the most appropriate choice for a client with multiple cavities, chipped, and missing teeth. This diet helps ensure the client can eat comfortably and maintain adequate nutrition.
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