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 C
Explanation
Choice A rationale
While involving the family in the care of an older adult client is important, calling the family to make arrangements for someone to sit with the client is not the immediate action the nurse should take. The nurse’s first responsibility is to ensure the client’s safety and well-being.
Choice B rationale
Obtaining a prescription for medication to sedate the client is not the immediate action the nurse should take. Sedating the client does not address the immediate concern of potential injury.
Choice C rationale
The nurse should first check the client for injuries. This is the immediate action because the client may have sustained injuries from the fall. The nurse should perform a thorough assessment to determine the extent of any injuries and provide appropriate care.
Choice D rationale
Assisting the client back into bed and applying restraints is not the immediate action the nurse should take. Restraints should be used as a last resort and only if less restrictive measures have been ineffective. Furthermore, restraints require a physician’s order.
Correct Answer is B
Explanation
Choice A rationale
Requesting a prescription for the insertion of an indwelling urinary catheter is not the best option to prevent skin breakdown in a client with urinary incontinence. Catheters can increase the risk of urinary tract infections and should be used as a last resort.
Choice B rationale
Applying a moisture barrier ointment to the skin can help protect the skin from the damaging effects of urine. This can help prevent skin breakdown and is a common practice in the care of clients with urinary incontinence.
Choice C rationale
Cleaning the skin and perineum with hot water after each episode of incontinence is not recommended. Hot water can dry out the skin and cause irritation. It’s better to use warm water and a gentle cleanser.
Choice D rationale
Checking the client’s skin every 8 hours for signs of breakdown is important, but it’s not the only action the nurse should take. The nurse should also take proactive measures to protect the skin, such as applying a moisture barrier ointment.
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