A client is receiving oxygen at 2 L/min via a nasal cannula. What oxygen concentration is the client receiving?
28%
70%
509%
36% .
The Correct Answer is A
The correct answer is Choice A. The client is receiving an oxygen concentration of 28%. Nasal cannulas can deliver oxygen at a flow rate ranging from 1 to 6 liters per minute (L/min), with
each additional liter increasing the fraction of inspired oxygen (FiO2) by 4%. Therefore, at 2 L/min, the client is receiving an oxygen concentration of 28%78.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale
Cranberry juice is an acceptable component of a clear liquid diet. Clear liquid diets are often prescribed postoperatively as they are easy to digest and leave no residue in the digestive tract.
Choice B rationale
Lemon sherbet is not part of a clear liquid diet. It is considered part of a full liquid diet, which is more substantial and includes foods that are liquid at room temperature.
Choice C rationale
Carrot juice is not typically included in a clear liquid diet. It may contain pulp and is not clear, which is a requirement of a clear liquid diet.
Choice D rationale
Plain yogurt is not part of a clear liquid diet. It is considered a solid food and is therefore not included.
Correct Answer is A
Explanation
Choice A rationale
Placing a bath seat in the shower is a good safety measure for a patient with a history of falls. It allows the patient to sit while bathing, reducing the risk of slipping and falling.
Choice B rationale
Keeping the fluorescent ceiling light on in the room at night can actually increase the risk of falls. It can create shadows and glare that can be disorienting, especially for older adults.
Choice C rationale
Placing an area rug at the entry of the bathroom is not recommended. Rugs can easily become tripping hazards, especially if they’re not secured to the floor.
Choice D rationale
Keeping a walker at the end of the bed can be helpful for some patients, but it’s not the best indication that the patient understands home safety instructions. It’s important that the walker is used correctly and that the patient’s home is arranged to accommodate its use.
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