The two-hour monitoring window:
what it requires.

When the clock starts

The observation period runs from administration. Since a session is one, two, or three nasal-spray devices (56 mg is two devices, 84 mg is three) separated by a five-minute rest each, the practical convention is to anchor the window at the first device. A clinic that times from the last device runs a longer day; a clinic that loses track of when the first device was given can't prove the window ran at all. Whatever your convention, it should be written down, consistent, and visible to the people running the floor.

The vitals cadence

• Before the dose. Blood pressure is taken pre-dose. Esketamine is contraindicated against uncontrolled hypertension, and an elevated baseline reading is a prescriber decision. This is also where the session checklist lives: identity, enrollment current, transport home arranged, medication changes since last visit.
• Around forty minutes. Blood pressure peaks roughly 40 minutes post-dose, so the label calls for a re-check there. Many clinics treat this as a quick all-clear when the patient looks fine, with a full set of readings when anything warrants it.
• Before discharge. A final assessment: vitals plus a clinical judgment that sedation and dissociation have resolved enough for the patient to leave safely.
• As clinically warranted in between. Anything observed during the window can call for another reading.

What staff are watching for

The window exists because the predictable effects (sedation, dissociation, and blood-pressure elevation) concentrate in those first two hours. Observations get documented as they happen, with times: when a reviewer reads the record later, the difference between “dissociation, mild, 14:22, resolved 14:50” and a vague end-of-day note is the difference between a defensible record and a story to tell. Anything serious belongs in the session's adverse-event review before discharge, including the explicit confirmation that nothing rose to that level, which is itself a finding worth recording.

What has to be true at discharge

• At least two hours have elapsed since administration.
• The patient is clinically stable: sedation and dissociation assessed and resolved to the clinician's satisfaction, with a final set of vitals taken.
• Any observations have been through the serious-adverse-event review, marked serious or explicitly not.
• The patient is leaving with their arranged transport: no driving or operating machinery until the next day, after a restful sleep.

A session that has to end early (a patient who insists on leaving, a clinical decision to stop) isn't a record to quietly discard. It's a session like any other, documented with its reason; an early end with an honest record is defensible in a way a gap in the log never is.

The edge cases, and the decision each one needs

The window itself is simple. What makes an afternoon difficult is the handful of situations that interrupt it, and the clinics that stay calm are the ones that decided the answer in advance rather than in the moment. Each of these deserves a written answer before your first patient, not your first incident.

• The elevated baseline. Pre-dose blood pressure comes back above your clinic's threshold. This is a prescriber decision, not a clinician's judgment call, so the process question is only: how is the prescriber reached, how fast, and what gets recorded when they decide? An override that exists but leaves no trace is the worst of both worlds. Write down who can authorize, and make the reason part of the record rather than a conversation nobody can reconstruct.
• The patient who wants to leave early. They feel fine, they have somewhere to be, and the two hours are not up. Nothing about this is unusual and it is not, by itself, a crisis: it is a session that ends early with a documented reason. The failure mode is not the early ending, it is the record that quietly reports a full window. Decide who counsels the patient, who documents, and where the reason lives.
• No ride home. Discovered at check-in it is a rescheduling problem; discovered at discharge it is a much worse one, because the patient is already dosed and cannot drive until the next day, after a restful sleep. That asymmetry is the whole argument for confirming transport in the pre-dose checklist rather than trusting it was arranged at booking.
• Something observed mid-window. Sedation deeper than expected, dissociation that is distressing rather than merely present, a vital that moves. The clinical response is the clinician's; the operational requirement is that it be written down with its time, and that it reach the adverse-event review before anyone discharges. An observation remembered at 6pm is not the same evidence as one recorded at 14:22.

The pattern across all four is the same. None of them is rare enough to improvise, and each one is a process decision rather than a clinical one. Write the answers down, and the second occurrence is routine.

Running several windows at once

The hard part operationally isn't one window; it's four, staggered across an afternoon, each at a different phase with a different next-thing-due. That's a scheduling problem wearing a compliance costume: whoever can see all the clocks at once runs a calm floor, and whoever can't is doing arithmetic at the front desk while a forty-minute check goes quietly overdue. However a clinic solves it (a whiteboard, a spreadsheet, or a live board), the test is the same: can anyone, at a glance, say what's due next in every room?

A staggered afternoon, in practice

It is worth walking one through concretely, because the arithmetic is what actually bites. Four patients, four rooms, arrivals half an hour apart, and a single administering clinician covering the floor:

• 1:00 — Room 1 doses. Clock starts. Forty-minute check lands at 1:40, discharge no earlier than 3:00.
• 1:30 — Room 2 doses. Its check is at 2:10, discharge from 3:30. Nothing has collided yet.
• 1:40 — Room 1's check. Fine, but Room 3's patient is arriving now and needs a pre-dose checklist and baseline vitals. Two things want the same person.
• 2:00 — Room 3 doses, ten minutes later than planned because of the overlap. Check at 2:40, discharge from 4:00. The lateness is harmless clinically and has just moved every downstream time.
• 2:10 — Room 2's check, which is also when Room 4 arrives.
• 2:30 — Room 4 doses. Check 3:10, discharge from 4:30.
• 2:40 — Room 3's check, twenty minutes before Room 1 can be discharged and assessed.
• 3:00 onward — discharges at 3:00, 3:30, 4:00 and 4:30, each needing a final assessment, an adverse-event review, and a form.

Nothing in that afternoon is clinically difficult. But between 1:40 and 3:10 there are seven timed obligations, none of which announces itself, and the ten-minute slip in Room 3 silently moved three of them. This is why the forty-minute check is the one that goes missing: it is never the most urgent thing in the room, and it has no consequence until a reviewer notices it is absent. A clinic that can see every clock at once treats that afternoon as ordinary. A clinic doing the arithmetic by hand is one interruption away from a gap in a record it cannot go back and fill.

This is exactly the problem the live room board exists to solve: the clock runs on the server rather than on a device that can be closed, and what is due next in every room is a thing you read rather than a thing you compute.

Related guides

• The Spravato® audit question: could you produce it?
• Spravato® REMS requirements, explained
• The seven-day filing deadline, and how clinics miss it
• Spravato® inventory tracking, done properly
• Starting a Spravato® clinic: the compliance checklist