A client with atrial fibrillation is scheduled for an elective cardioversion.
The nurse prepares for the procedure by inserting two intravenous (IV) catheters and connecting the monitoring lead wires to the client.
Which action is most crucial for the nurse to take before initiating the cardioversion?
Activate the synchronization mode.
Choose a monitor lead with a tall R wave.
Administer the prescribed sedative.
Verify the prothrombin time (PT).
The Correct Answer is C
Choice A rationale
Activating the synchronization mode is important during cardioversion to avoid delivering a shock during the vulnerable period of cardiac repolarization, which could potentially cause a life-threatening arrhythmia. However, it is not the most crucial action.
Choice B rationale
Choosing a monitor lead with a tall R wave can help ensure that the cardioverter-defibrillator can sense the patient’s intrinsic cardiac activity. However, this is not the most crucial action.
Choice C rationale
Administering the prescribed sedative is the most crucial action before initiating cardioversion. Sedation is necessary to ensure patient comfort and cooperation during the procedure, as cardioversion can be painful.
Choice D rationale
Verifying the prothrombin time (PT) is important in patients receiving anticoagulation therapy, as atrial fibrillation increases the risk of thrombus formation. However, it is not the most crucial action before initiating cardioversion.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A rationale
While any positive response on the CAGE questionnaire could be a cause for concern and warrant further investigation, one positive response does not definitively indicate that the patient should seek help with alcohol addiction. The CAGE questionnaire is a screening tool used to identify potential problems with alcohol, but it is not diagnostic. A healthcare provider would need to conduct a more thorough assessment to diagnose alcohol addiction.
Choice B rationale
It is not necessary for all responses to the CAGE questionnaire to be positive in order to suggest alcohol dependence. The CAGE questionnaire is a screening tool, and while a greater number of positive responses increases the likelihood of alcohol dependence, it is not a requirement for all responses to be positive. A score of two or more is considered clinically significant.
Choice C rationale
The CAGE questionnaire is indeed a tool used to identify potential problems with alcohol, but it is not used to identify general substance abuse. The CAGE questionnaire specifically asks about feelings related to alcohol use. There are other screening tools available that are designed to identify issues with other substances.
Choice D rationale
This is the correct answer. The CAGE questionnaire is a validated screening tool that is widely used in clinical settings to detect alcoholism. It is considered positive, and suggestive of alcohol dependence, if two or more questions are answered affirmatively.
Correct Answer is ["B","C","D","E","F","G"]
Explanation
Choice A rationale
Lamb’s wool is typically used for padding to prevent pressure sores and does not directly relate to the administration of oxygen therapy. Therefore, it is not necessary when a patient is put on oxygen.
Choice B rationale
Sterile water is used in oxygen therapy to provide humidification, which prevents the drying and irritation of the respiratory mucosa. Therefore, it is necessary when a patient is put on oxygen.
Choice C rationale
Tape can be used to secure the oxygen delivery device, such as a nasal cannula, to the patient’s face. Therefore, it is necessary when a patient is put on oxygen.
Choice D rationale
A suction canister is used to collect respiratory secretions during suctioning procedures, which may be necessary for patients with excessive secretions or difficulty clearing secretions.
Therefore, it is necessary when a patient is put on oxygen.
Choice E rationale
A humidifier bottle is used in oxygen therapy to provide humidification, which prevents the drying and irritation of the respiratory mucosa. Therefore, it is necessary when a patient is put on oxygen.
Choice F rationale
A nasal cannula is a device used to deliver supplemental oxygen to a patient who needs oxygen therapy. Therefore, it is necessary when a patient is put on oxygen.
Choice G rationale
A flowmeter is used in oxygen therapy to control the rate of oxygen flow to the patient. Therefore, it is necessary when a patient is put on oxygen.
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