Answer:
Seek immediate medical care.
Step-by-step explanation:
In this case, we should seek immediate medical care, mainly because we ignore the causes of the absence of pulse. In other cases, like cuts or sprains, we could use ice or we could wrap the arm, or just elevate it above the head, by those actions don't apply here, because there is no arm sprain or cuts.
It's important to consider seeking professional help in cases like this, because due to the ignorance we could worsen the situation.