Final answer:
The nurse's primary responsibility immediately after an ECT procedure is to obtain the patient's vital signs to ensure their physical stability post-procedure.
Step-by-step explanation:
The primary responsibility of the nurse immediately after an electroconvulsive therapy (ECT) procedure is b) Obtaining vital signs. This is essential because it assesses the patient's physical stability post-procedure. Electroconvulsive therapy is used to treat certain psychiatric conditions and, like any procedure where anesthesia is used, requires careful monitoring of the patient's vital signs upon waking. This includes checking the patient's blood pressure, heart rate, respiratory rate, and oxygen saturation levels. After the procedure, the patient's physical and cognitive statuses should be continuously evaluated to ensure there are no immediate complications, such as respiratory difficulties or heart issues.