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 D
Explanation
Choice A reason: To provide a means for medication administration
A Jackson-Pratt (JP) drain is not used for medication administration. Its primary function is to remove fluids that accumulate in a surgical site, which helps to prevent infection and promote healing. Medication administration is typically done through other means such as intravenous (IV) lines or oral medications.
Choice B reason: To eliminate the need for wound dressings
The JP drain does not eliminate the need for wound dressings. Dressings are still required to protect the wound site, absorb any additional drainage, and prevent infection. The JP drain works in conjunction with dressings to manage wound care effectively.
Choice C reason: To limit the amount of bleeding from the surgical site
While the JP drain can help manage bleeding by removing accumulated blood, its primary purpose is not to limit bleeding. Instead, it is designed to prevent the buildup of fluids, including blood, which can lead to complications such as hematomas or infections.
Choice D reason: To prevent fluid from accumulating in the wound
The primary purpose of a Jackson-Pratt (JP) drain is to prevent fluid from accumulating in the wound. This includes blood, lymphatic fluid, and other bodily fluids that can collect at the surgical site. By removing these fluids, the JP drain helps to reduce the risk of infection, promote healing, and decrease the likelihood of complications.
Correct Answer is B
Explanation
Choice A Reason:
Listening to the client’s speech is not a method used to assess cranial nerve V. This method is more relevant for assessing cranial nerves IX (Glossopharyngeal) and X (Vagus), which are involved in speech and swallowing.
Choice B Reason:
Clenching the teeth is a method used to assess the motor function of cranial nerve V (the trigeminal nerve). The trigeminal nerve is responsible for the movement of the muscles involved in chewing. When a client clenches their teeth, the nurse can palpate the masseter and temporal muscles to check for strength and symmetry. This helps determine if there are any abnormalities in the motor function of the trigeminal nerve.
Choice C Reason:
Asking the client to read a Snellen chart is a method used to assess cranial nerve II (Optic), which is responsible for vision. This method does not assess cranial nerve V.
Choice D Reason:
Asking the client to raise his eyebrows is a method used to assess cranial nerve VII (Facial), which controls facial expressions. This method is not used to assess cranial nerve V.
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