A client needs 5 liters of oxygen. Which of the following devices is appropriate for use with an oxygen flow rate of 5 liters? Select all that apply:
High-flow nasal cannula
Simple face mask
Nasal cannula
Non-rebreather mask
Venturi mask
Correct Answer : B,C
Choice A Reason: High-flow nasal cannula
The high-flow nasal cannula (HFNC) is designed to deliver oxygen at flow rates much higher than 5 liters per minute, typically ranging from 20 to 60 liters per minute. It is used for patients requiring high levels of oxygen and positive airway pressure. Therefore, it is not appropriate for a flow rate of 5 liters per minute.
Choice B Reason: Simple face mask
The simple face mask is suitable for delivering oxygen at flow rates between 6 to 10 liters per minute. However, it can also be used at a flow rate of 5 liters per minute, providing an FiO2 (fraction of inspired oxygen) of approximately 40-60%. This makes it an appropriate choice for the given requirement.
Choice C Reason: Nasal cannula
The nasal cannula is a low-flow oxygen delivery device that can deliver oxygen at flow rates from 1 to 6 liters per minute. At 5 liters per minute, it provides an FiO2 of approximately 40%. It is comfortable for patients and is commonly used for those who need a moderate amount of supplemental oxygen.
Choice D Reason: Non-rebreather mask
The non-rebreather mask is designed to deliver high concentrations of oxygen, typically at flow rates of 10 to 15 liters per minute. It is used in situations where patients need a high FiO2, close to 100%. Therefore, it is not suitable for a flow rate of 5 liters per minute.
Choice E Reason: Venturi mask
The Venturi mask is used to deliver precise oxygen concentrations, typically ranging from 24% to 60% FiO2. It is suitable for patients who require controlled oxygen therapy. While it can be adjusted to deliver oxygen at a flow rate of 5 liters per minute, it is generally used for more specific FiO2 requirements.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A Reason:
Documenting that the nasogastric tube is in the correct place is not appropriate in this scenario. The normal pH range for gastric contents is typically between 1.5 and 3.5. A pH of 7.35 is much higher than this range, indicating that the tube may not be in the stomach. Therefore, documenting the tube as correctly placed could lead to potential complications, such as improper feeding or medication administration.
Choice B Reason:
Notifying the health care provider is the correct action. A pH of 7.35 suggests that the nasogastric tube may be misplaced, possibly in the respiratory tract or another non-gastric location. Immediate notification of the health care provider is crucial to prevent any adverse outcomes and to take corrective measures, such as confirming placement with an X-ray or re-inserting the tube.
Choice C Reason:
Checking for placement by auscultating for air injected into the tube is not a reliable method for verifying nasogastric tube placement. While this method was traditionally used, it has been found to be inaccurate and is no longer recommended. The sound of air entering the stomach can be misleading and does not confirm correct placement.
Choice D Reason:
Retesting the pH using another strip is not the best immediate action. While it is important to ensure the accuracy of the pH reading, a pH of 7.35 is significantly outside the normal gastric range, and retesting is unlikely to yield a different result. The priority should be to notify the health care provider to address the potential misplacement of the tube.
Correct Answer is ["31"]
Explanation
Step 1: Calculate the total infusion time in minutes.
8 hours × 60 minutes/hour = 480 minutes
Result at each step = 480 minutes
Step 2: Calculate the total number of drops to be infused.
1,000 mL × 15 drops/mL = 15,000 drops
Result at each step = 15,000 drops
Step 3: Calculate the infusion rate in drops per minute.
15,000 drops ÷ 480 minutes = 31.25 drops/minute
Result at each step = 31.25 drops/minute
Step 4: Round to the nearest whole number if necessary.
31.25 drops/minute rounds to 31 drops/minute
Result at each step = 31 drops/minute
Therefore, the nurse should run the IV infusion at a rate of 31 drops per minute.
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