What to Bring + How to Prepare for Your First TMS Appointment
A practical checklist for your first TMS appointment — what to bring, what to wear, and how to prepare for the longer 60-to-90-minute first visit that includes one-time motor-threshold mapping.
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The first transcranial magnetic stimulation (TMS) appointment is longer than the rest of the course — typically 60 to 90 minutes, compared to roughly 20 to 40 minutes for sessions thereafter. The extra time covers a one-time calibration step called motor-threshold mapping, which sets the dose used for every subsequent session.1 Other than arriving rested and hydrated, there is nothing the patient needs to "do" beforehand. This article is the practical companion to the clinical walkthrough — a checklist of what to bring, what to wear, and the small details that come up in clinical practice the day of a first appointment.
What to bring — a checklist
The items below are not strictly required for the TMS procedure itself, but each one shortens the visit, helps the clinical team, or addresses a question that commonly comes up at the first appointment.
Photo ID — driver's license, state ID, or passport.
Insurance card, front and back. The clinic has a copy on file from intake, but the physical card resolves any discrepancy on the spot.
Current medication list with dose and prescriber. Include over-the-counter medications, supplements, and "as needed" medications. Antidepressants, antipsychotics, anxiolytics, anticonvulsants, and stimulants are particularly relevant to the treating psychiatrist.
Recent labs, if available. TMS does not require any specific labs, but recent thyroid, metabolic, or vitamin-D panels help the psychiatrist's broader clinical picture.
A written list of prior antidepressant trials with approximate dates, doses, and response. Even if this was discussed at the candidacy evaluation, having it in writing is helpful — and most patients find their recall improves when they sit down at home to draft it.
Emergency contact information — a name and a working phone number.
A co-pay or self-pay payment method if a financial responsibility has been discussed in advance.
Reading material, headphones, or a podcast. Sessions run roughly 19 to 40 minutes once treatment is underway; many patients find an audiobook or podcast makes the time pass more comfortably.
What to wear
Comfortable clothing is the only requirement. There is no gown change and nothing is placed under the clothing. Two small details that come up at first appointments:
Hold off on scalp products the morning of the appointment — gels, mousses, pomades, and heavy oils. These do not preclude treatment, but they can interfere with consistent coil-to-scalp contact and add a few minutes to positioning. Shampoo as normal; skip the leave-in product for one morning.
Skip earrings, studs, or other metal accessories near the treatment area if the prescribing psychiatrist has indicated stimulation will be placed near the ear. The treatment coil's magnetic field can interact with ferromagnetic items.2 When in doubt, leave them at home; they can be replaced after the session.
The hours leading up
The day-of routine looks like a normal day. There is no fasting, no specific diet, and no pre-medication. The four things worth attending to:
Sleep. A normal night of sleep is ideal. Sleep deprivation is one of the small factors that lowers seizure threshold, so a poor night is not a deal-breaker but is not preferred either.32
Hydration. Normal water intake is fine. There is no need to overload.
Caffeine. A patient's usual amount is fine. The first session is not the time to change a long-standing routine — withdrawal headaches are more disruptive than a normal cup of coffee.
Food. Eat normally. TMS is not performed under sedation; nothing about the procedure requires fasting.
Medications. Continue all prescribed medications as normal unless the prescribing psychiatrist has specifically said otherwise.
Small things that come up in clinical practice
These are the items that are not strictly required but tend to make the first appointment go more smoothly:
Bring a snack and a drink for after. A small minority of patients feel lightheaded after the first one or two sessions — this almost always resolves within a few minutes of sitting down with water and something to eat.
Arrange ordinary transportation. TMS is not a sedated procedure and does not affect alertness, cognition, or reaction time. Most patients drive themselves to and from sessions. A dedicated driver is not required.
Plan buffer time afterward. The 60-to-90-minute window for the first session is a typical range, not a guarantee. Building 30 minutes of buffer time afterward leaves room for questions with the clinical team and avoids the feeling of rushing back to a meeting.
What happens at the appointment — a brief preview
The first appointment includes a short check-in with the clinical team, the one-time motor-threshold mapping step, coil positioning over the left dorsolateral prefrontal cortex (DLPFC), the first treatment session, and a brief post-session check. The clinical walkthrough — what mapping looks like, what the device sounds like, what the scalp sensation feels like — is covered in detail in what to expect during your first TMS session. Reading that piece the night before is the single highest-yield preparation step.
Common day-one questions
Four questions come up consistently in the days before a first appointment. The clinical answers, briefly:
"Will it hurt?" Most patients describe a tapping or knocking sensation on the scalp directly under the coil — sometimes compared to a woodpecker. It is rarely characterized as sharp pain. Tolerability typically improves within the first three to five sessions as the scalp accommodates.
"Will I feel different right away?" Generally, no. Therapeutic response to TMS is cumulative; clinical-trial cohorts typically show measurable change beginning around weeks two to four, not after a single session.
"What if I have a panic attack mid-session?" The session can be paused at any time. Patients remain awake and in control throughout. Telling the technician — even mid-train — is the right call, and the protocol can be adjusted.
"Will I be able to drive home?" Yes. TMS does not affect alertness, cognition, or reaction time, and there is no sedation involved.
When to call the clinic before the appointment
Most first appointments proceed exactly as scheduled. There are four circumstances where a phone call to the clinic before the appointment is the right move:
A new medication started in the prior week — including over-the-counter medications, supplements, and short courses of antibiotics or steroids.
A recent illness with fever or significant fatigue. Same-week respiratory or gastrointestinal illness is worth flagging.
A change in seizure-history information from what was disclosed at the screening — a personal or family history that surfaced in conversation since the evaluation.
A major life event the treating clinician would want to know about before treatment begins — a recent loss, a hospitalization, or a significant medication change managed by an outside provider.
None of these automatically cancel an appointment. They are pieces of information the treating clinician would rather have in advance than discover at the start of the visit.
Key takeaways
The first TMS appointment runs 60 to 90 minutes because it includes a one-time motor-threshold mapping step; subsequent sessions are 20 to 40 minutes.
Bring photo ID, insurance card, a current medication list with dose and prescriber, a written prior-antidepressant-trial history, and emergency contact information.
Wear comfortable clothing; skip scalp products the morning of the appointment for cleaner coil contact.
Sleep, hydrate, eat, and take medications as normal — there is no fasting, no pre-medication, and no need to change a caffeine routine for the first session.
TMS does not affect alertness; a dedicated driver is not required. Building 30 minutes of buffer time after the first appointment is sensible.
For patients across Anaheim, Orange County, and the broader 30-mile radius preparing for a first appointment, the checklist above covers the practical pieces. The clinical walkthrough of the session itself is in what to expect during your first TMS session, and the broader overview of the modality and how a course is structured is on the TMS therapy page. If coverage has not yet been confirmed, the insurance verification form takes about two minutes and gives the clinical team what is needed to confirm benefits before the visit.
Sources / Further reading
Perera T, George MS, Grammer G, Janicak PG, Pascual-Leone A, Wirecki TS. The Clinical TMS Society Consensus Review and Treatment Recommendations for TMS Therapy for Major Depressive Disorder. Brain Stimulation. 2016;9(3):336–346. ↩
Rossi S, Antal A, Bestmann S, et al. Safety and recommendations for TMS use in healthy subjects and patient populations, with updates on training, ethical and regulatory issues: Expert Guidelines. Clin Neurophysiol. 2021;132(1):269–306. ↩ ↩
Lerner AJ, Wassermann EM, Tamir DI. Seizures from transcranial magnetic stimulation 2012–2016: results of a survey of active laboratories and clinics. Clin Neurophysiol. 2019;130(8):1409–1416. ↩
