A nurse is caring for a client who is receiving oxygen via nasal cannula at 4 L/min. Which of the following actions should the nurse take?
Avoid the use of humidifiers.
Position the cannula prongs curving upward in the nose.
Clean the cannula prongs daily.
Keep the oxygen tubing off the floor.
The Correct Answer is C
Clean the cannula prongs daily.

This is because the nasal cannula can become contaminated with bacteria and mucus, which can cause infection and irritation of the nasal mucosa. Cleaning the cannula prongs daily with soap and water can prevent these complications.
Choice A is wrong because humidifiers can help moisten the dry oxygen and prevent nasal dryness and bleeding. Humidifiers should be used for oxygen flow rates higher than 4 L/min.
Choice B is wrong because the cannula prongs should be positioned curving downward in the nose, not upward. This allows for better alignment with the natural direction of airflow and reduces the risk of dislodgement.
Choice D is wrong because keeping the oxygen tubing off the floor is not a specific action for nasal cannula use. It is a general safety measure to prevent tripping and contamination of the tubing.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Muscle irritability. A client with a lithium level of
2.0 mEq/L has severe lithium toxicity, which can cause muscle irritability, tremors, seizures, and other neurological symptoms. The normal therapeutic range for lithium is 0.8-1.2 mEq/L.
Choice B is wrong because constipation is not a sign of lithium toxicity, but rather a possible side effect of lithium therapy at lower doses.
Choice C is wrong because hypoglycemia is not a sign of lithium toxicity, but rather a possible complication of diabetes or other conditions that affect blood sugar levels.
Choice D is wrong because increased blood pressure is not a sign of lithium toxicity, but rather a possible risk factor for cardiovascular disease or other conditions that affect blood vessels.
Correct Answer is B
Explanation
“I will not play soccer until my doctor tells me I can.” This statement indicates that the client understands the risk of splenic rupture due to splenomegaly and the need to avoid contact sports until the spleen returns to normal size.
Choice A is wrong because antibiotics are not effective for infectious mononucleosis, which is caused by a virus.
Choice C is wrong because varicella booster is not related to infectious mononucleosis and there is no evidence that the client needs it.
Choice D is wrong because jaundice (yellowing of the eyes and skin) is not a common manifestation of infectious mononucleosis and may indicate another condition such as hepatitis.
Normal ranges for spleen size are 7 to 14 cm in length and 3 to 4 cm in thickness.
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