A nurse receives an order from the provider for a client requiring the highest oxygen concentration with a one-way valve. What type of mask should the nurse apply to the client?
Simple face mask
Venturi mask
Non-rebreather mask
Partial rebreather mask
The Correct Answer is C
A: A simple face mask provides a moderate concentration of oxygen but does not have a one-way valve to deliver the highest concentration of oxygen.
B: A Venturi mask delivers a precise concentration of oxygen but is not designed to provide the highest concentration of oxygen with a one-way valve.
C: A non-rebreather mask is the correct choice. It has a one-way valve that prevents exhaled air from re-entering the bag, allowing the delivery of the highest concentration of oxygen to the client.
D: A partial rebreather mask provides a high concentration of oxygen but does not have a one-way valve, making it less effective than a non-rebreather mask for delivering the highest oxygen concentration.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A: A nasal cannula delivers a lower concentration of oxygen, typically between 24-44% FIO2, and is used at flow rates of 1-6 L/min. It is not suitable for delivering 40-60% FIO2.
B: A simple face mask can deliver 40-60% FIO2 at flow rates of 5-8 L/min. It covers the nose and mouth, providing a higher concentration of oxygen compared to a nasal cannula.
C: An aerosol mask is used for delivering humidified oxygen or medications via nebulization. It can deliver varying concentrations of oxygen but is not specifically designed for 40-60% FIO2 at 5-8 L/min.
D: A face tent is used for patients who cannot tolerate a mask, such as those with facial trauma or claustrophobia. It provides humidified oxygen but does not deliver a precise FIO2 concentration.
Correct Answer is B
Explanation
A: Continuous output from the stoma is expected in patients with an ileostomy. The stoma continuously produces waste, and this is a normal finding.
B: The presence of blood in the stool is an abnormal finding and should be reported immediately. It could indicate bleeding within the gastrointestinal tract, which requires prompt medical evaluation and intervention.
C: Malodorous stool is common with an ileostomy and is not typically a cause for immediate concern. However, if the odor is unusually strong or different, it may warrant further investigation.
D: Liquid consistency of stool is normal for an ileostomy, as the large intestine, which absorbs water, is bypassed. This is not an immediate concern unless there are other symptoms present.
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