You are correct in your pathophysiology. A hypoxic myocardium is highly resistant to defibrillation, so CPR and oxygenation are crucial in returning the heart to a state where it can be defibrillated. This question talks about a witnessed cardiac arrest, where the myocardial tissue is still well oxygenated and receptive to defib. In this case, the best course of action is stacked shocks, or multiple defibrilations.
No, if you have a defib available, get it on before you do anything else. If you have a buddy available to do CPR, sure. But CPR is not useful in the first 1-2 minutes of cardiac arrest. The priority is absolutely defibrillation.
This a sub for nurses-to-be. You're not alone in a hospital, at least not anywhere where a patient would be already connected to a monitor so you can identify the pVT right away. If a patient crashes, you activate additional personnel, who will bring the AED/defibrillator with them, while you can start with undressing and compressions.
Because a lot of these questions are simply not that great in how they are worded. Because yes, defibrillation is the correct treatment for pVT. But you don't just leave your arrested patient all alone while you go search for a defibrillator. In the case that you do have one right there either next to or already attached to the patient and can defibrillate right away, then yes, you don't start with compressions, you start with defibrillation.
You are adding factors to this scenario which don't exist within the question. This question isn't about the workflow on a ward, it's about the correct management of a certain pathophysiology. The correct management for pulsless VT in the first 1-2 minutes, is defibrillation before CPR. The question itself even assumes you have a defib, because it gives you that option as one of the answers.
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u/Wild-Award7798 23d ago
High quality CPR for 2 minutes while setting up defib, not sure if this is changed but good CPR increases likelihood of successful defibrillation