Final answer:
The first step is to notify the anesthesia professional and the surgeon about the client's water intake, as it affects the anesthetic plan and safety of the surgery.
Step-by-step explanation:
In a situation where a male client admitted for surgery informs the Practical Nurse (PN) that he drank water last night, the first intervention by the PN should be to notify the anesthesia professional and the surgeon. Before induction of anesthesia, there is a critical step called sign in, wherein members of the team, including at least the nurse and an anesthesia professional, orally confirm several concerns crucial to the safety of the patient, including verifying the fasting status. Following this, a time out is conducted before the skin incision, where the entire team reviews aloud key concerns for the recovery and care of the patient. Notifying the team about the client's last fluid intake is essential as it may impact the anesthetic plan and the safety of the procedure.