A nurse is caring for a client who has dyspnea with an oxygen saturation of 88%. Which of the following indicates the type of face mask the nurse should use to deliver the client a 90% oxygen concentration?
Simple face mask
Nasal prongs
Non-rebreather mask
Nasal cannula
The Correct Answer is C
A. Simple face mask: This can deliver oxygen at flow rates of 5-10 liters per minute and typically provides an oxygen concentration of about 35-50%.
B. Nasal prongs: Nasal prongs deliver oxygen at lower flow rates and may not be sufficient to raise the client's oxygen saturation to 90%.
C. Non-rebreather mask: This mask can deliver high concentrations of oxygen (up to 90-100%) at flow rates of 10-15 liters per minute. It has one-way valves to prevent the patient from rebreathing exhaled air, thus maximizing the delivery of oxygen.
D. Nasal cannula: Nasal cannulas deliver oxygen at lower flow rates (typically up to 6 liters per minute) and may not provide the necessary concentration to achieve an oxygen saturation of 90%.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Ensure that the stool specimen does not contain urine: Fecal occult blood tests are designed to detect blood in the stool, so it's important to ensure that the specimen
collected is not contaminated with urine, which could yield a false-positive result.
B. Wear sterile gloves when handling the stool specimen: Sterile gloves are not typically required for handling stool specimens for fecal occult blood testing. Standard
precautions, including hand hygiene and wearing non-sterile gloves, are sufficient.
C. Repeat the test three times using the same stool specimen: The test is typically
performed once on a fresh stool specimen, and repeating the test with the same specimen is not recommended.
D. Have the client defecate into a bedpan that contains a small amount of water: Fecal occult blood testing requires a small sample of stool collected from a bowel movement. Using a bedpan with water may dilute the stool and affect the accuracy of the test.
Correct Answer is C
Explanation
A. Simple face mask: This can deliver oxygen at flow rates of 5-10 liters per minute and typically provides an oxygen concentration of about 35-50%.
B. Nasal prongs: Nasal prongs deliver oxygen at lower flow rates and may not be sufficient to raise the client's oxygen saturation to 90%.
C. Non-rebreather mask: This mask can deliver high concentrations of oxygen (up to 90-100%) at flow rates of 10-15 liters per minute. It has one-way valves to prevent the patient from rebreathing exhaled air, thus maximizing the delivery of oxygen.
D. Nasal cannula: Nasal cannulas deliver oxygen at lower flow rates (typically up to 6 liters per minute) and may not provide the necessary concentration to achieve an oxygen saturation of 90%.
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