A nurse is caring for a client who is using a non-rebreather mask for oxygen delivery. The nurse should identify which of the following as an indication that the equipment is functioning properly?
Air is heard escaping from around the mask.
The flow control meter dial is at the correct setting.
The attached reservoir bag is inflated.
The exhalation ports are covered during inspiration and expiration.
The Correct Answer is C
A. Air escaping from around the mask indicates a poor mask seal, which would lead to inadequate oxygen delivery and is not an indication of proper equipment function.
B. The flow control meter dial being at the correct setting ensures the appropriate flow rate of oxygen but does not directly indicate the functionality of the mask and reservoir system. C. The attached reservoir bag should be inflated with oxygen when the mask is properly connected and functioning, indicating the delivery of high-concentration oxygen to the client.
D. The non-rebreather mask should not have exhalation ports that are covered during inspiration and expiration; rather, it should allow exhaled air to escape to prevent carbon dioxide buildup within the mask.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Correct. Furosemide is a loop diuretic that can cause potassium loss through increased urine output. Monitoring potassium levels is essential to prevent hypokalemia, which can lead to cardiac dysrhythmias and other complications.
B. Incorrect. Monitoring the white blood cell (WBC) count is not typically necessary for patients receiving furosemide unless there are specific indications or concerns.
C. Incorrect. Furosemide does not typically affect iron levels, so monitoring iron levels is not necessary in this context.
D. Incorrect. Monitoring amylase levels is not typically indicated for patients receiving furosemide unless there are specific concerns related to pancreatic function.
Correct Answer is A
Explanation
A. Applying light pressure to the inner canthus just after instilling the eye drops is the most effective action to minimize systemic absorption. This technique blocks the nasolacrimal duct, preventing the medication from draining into the systemic circulation through the nasal mucosa. This reduces the potential for systemic side effects.
B. Wiping the eye from the inner to the outer canthus with a sterile saline-moistened cotton ball is a cleaning technique to maintain hygiene but does not impact systemic absorption of the medication.
C. Administering the medication drops directly into the lower conjunctival sac is the correct method for instillation, ensuring proper delivery of the medication to the eye. However, this action does not specifically address systemic absorption.
D. Waiting 5 minutes before instilling drops in the other eye is appropriate to prevent dilution of the medication and ensure its effectiveness in each eye. However, this action does not minimize systemic absorption.
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