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 A
Explanation
Choice A: He is NPO until the speech-language pathologist performs a swallowing evaluation.
When a client is admitted with a stroke, especially one affecting the left side, there is a significant risk of dysphagia, or difficulty swallowing. This can lead to choking and aspiration, which can cause pneumonia and other complications. Therefore, it is crucial to keep the client NPO (nothing by mouth) until a speech-language pathologist can perform a thorough swallowing evaluation. This ensures that the client can safely swallow without the risk of aspiration. The speech-language pathologist will assess the client’s ability to swallow different textures and consistencies of food and liquids and provide recommendations for safe feeding.

Choice B: Be sure to sit him up when you are feeding him to make him feel more natural.
While sitting the client up during feeding is a good practice to reduce the risk of aspiration, it is not sufficient on its own for a client who has just had a stroke. Without a proper swallowing evaluation, feeding the client could still pose a significant risk. Therefore, this choice is not the most appropriate response.
Choice C: You may give him a full-liquid diet, but please avoid solid foods until he gets stronger.
A full-liquid diet might seem like a safer option, but it still poses a risk of aspiration if the client has dysphagia. Without a swallowing evaluation, it is not safe to assume that the client can handle even a full-liquid diet. Therefore, this choice is not appropriate.
Choice D: Just be sure to add some thickener in his liquids to prevent choking and aspiration.
Adding thickener to liquids can help some clients with dysphagia, but it is not a one-size-fits-all solution. The appropriate consistency of liquids should be determined by a speech-language pathologist after a swallowing evaluation. Therefore, this choice is not appropriate without a prior assessment.
Correct Answer is ["A","C","E"]
Explanation
Choice A Reason:
Weight loss.
Weight loss is a common symptom of hyperthyroidism. This condition speeds up the body’s metabolism, causing the body to burn calories more quickly than usual. Despite an increased appetite, individuals with hyperthyroidism often experience significant weight loss. This symptom is a direct result of the overproduction of thyroid hormones, which increases the metabolic rate.
Choice B Reason:
Intolerance to cold.
Intolerance to cold is not typically associated with hyperthyroidism; it is more commonly a symptom of hypothyroidism. Hyperthyroidism usually causes heat intolerance due to the increased metabolic rate, which raises the body’s temperature. Therefore, this choice is not relevant to hyperthyroidism.
Choice C Reason:
An elevated systolic blood pressure.
An elevated systolic blood pressure can be a symptom of hyperthyroidism. The increased levels of thyroid hormones can cause the heart to work harder, leading to higher blood pressure. This symptom is important to monitor as it can lead to further cardiovascular complications if left untreated.
Choice D Reason:
A heart rate of 90 bpm.
A heart rate of 90 bpm is within the normal range for adults and is not specifically indicative of hyperthyroidism. Hyperthyroidism typically causes a rapid or irregular heartbeat, often exceeding 100 bpm. Therefore, this choice does not accurately reflect a clinical manifestation of hyperthyroidism.
Choice E Reason:
Increased fatigability.
Increased fatigability is a common symptom of hyperthyroidism. Despite the increased metabolic rate, individuals with hyperthyroidism often feel tired and weak. This paradoxical symptom occurs because the body’s systems are overworked and cannot sustain the heightened activity levels, leading to fatigue.
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