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","D","E"]
Explanation
Choice A Reason:
Cool, clammy skin is a common symptom in patients with atrial fibrillation, especially when the heart rate is very high. This symptom occurs due to decreased cardiac output, which leads to poor perfusion of the skin. When the heart is beating too fast, it doesn’t have enough time to fill properly, resulting in less blood being pumped out to the body. This can cause the skin to feel cool and clammy as the body tries to compensate for the reduced blood flow.
Choice B Reason:
Respiratory rate of 20 is within the normal range for adults, which is typically 12-20 breaths per minute. While it is important to monitor respiratory rate in patients with atrial fibrillation, a rate of 20 does not indicate any immediate distress or abnormality. Therefore, this choice is not particularly relevant to the assessment of a patient with a heart rate of 143 beats/min due to atrial fibrillation.
Choice C Reason:
Flushing of the skin is not a typical symptom associated with atrial fibrillation. Flushing can occur due to various reasons such as fever, anxiety, or certain medications, but it is not directly linked to the high heart rate or the irregular rhythm seen in atrial fibrillation. Therefore, this choice is not applicable in this context.
Choice D Reason:
Hypotension (low blood pressure) is a significant concern in patients with atrial fibrillation, especially when the heart rate is very high. The rapid heart rate can lead to decreased cardiac output, as the heart does not have enough time to fill properly between beats. This can result in lower blood pressure, which can cause symptoms such as dizziness, fainting, and fatigue. Monitoring blood pressure is crucial in managing patients with atrial fibrillation to prevent complications.
Choice E Reason:
Chest discomfort is a common symptom in patients with atrial fibrillation, particularly when the heart rate is very high. The irregular and rapid heart rate can cause the heart to work harder, leading to increased oxygen demand and potentially reduced oxygen supply to the heart muscle. This imbalance can result in chest pain or discomfort, which is a warning sign that the heart is under stress. It is important to assess and address chest discomfort promptly to prevent further cardiac complications.
Correct Answer is ["A","B","C","D","E"]
Explanation
Choice A Reason:
Monitoring the QT interval is crucial when administering amiodarone because this drug can prolong the QT interval, increasing the risk of torsades de pointes, a potentially life-threatening type of ventricular tachycardia. Regular monitoring helps in early detection and management of this adverse effect, ensuring patient safety.
Title: Choice B Reason:
Heart rate monitoring is essential as amiodarone can cause bradycardia (slow heart rate). Continuous monitoring allows the nurse to detect any significant changes in heart rate and take appropriate actions, such as adjusting the medication dosage or providing interventions to manage bradycardia.
Title: Choice C Reason:
Respiratory rate monitoring is necessary because amiodarone can cause pulmonary toxicity, including interstitial pneumonitis and acute respiratory distress syndrome (ARDS). By keeping track of the respiratory rate, the nurse can identify early signs of respiratory complications and intervene promptly
Title: Choice D Reason:
Heart rhythm monitoring is vital since amiodarone is used to treat arrhythmias. Continuous electrocardiogram (ECG) monitoring helps in assessing the effectiveness of the drug in controlling arrhythmias and detecting any new or worsening arrhythmias that may require immediate attention.
Title: Choice E Reason:
Monitoring urine output is important because amiodarone can affect renal function, especially in patients with pre-existing kidney conditions. Keeping track of urine output helps in assessing renal function and ensuring that the drug is not causing nephrotoxicity
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