POTS Tilt Table and Active Stand Test: What They Measure

Updated 10 October 2026

A tilt table test and an active stand test look different but ask the same question: what does your body do when you go from lying down to upright? One uses a table that tips you, and the other uses your own legs. In both, staff record numbers, and you feel things the numbers do not capture.

This guide explains in plain words what the sources say each test measures, then builds a log for the day of the test. It gives a table, five steps, questions for the clinician and a checklist. It prepares the conversation, and the clinician decides what the results mean.

What head-up tilt and active stand tests measure in POTS, according to sources

Both tests track how heart rate and blood pressure respond to a change of position. Johns Hopkins Medicine says POTS is diagnosed using either a 10-minute standing test or a head-up tilt table test, and that occasionally other tests are performed to identify specific characteristics of POTS present in some patients. Mayo Clinic gives the heart rate threshold in plain terms: POTS causes the heart rate to go up at least 30 beats a minute or more within 10 minutes when you sit up or stand up.

The tilt table version is described by Johns Hopkins Medicine: the blood pressure and electrocardiogram (ECG) are measured during the test to evaluate changes during the position changes. The active stand version is explained by the NHS: if the doctor asks you to repeat the process several times, this is called an active stand test.

Dysautonomia International adds that POTS is often diagnosed by a tilt table test, but if such testing is not available, POTS can be diagnosed with bedside measurements of heart rate and blood pressure taken in the supine (laying down) and standing up position at 2, 5 and 10 minute intervals. Whether you meet any threshold is for the clinician to say after reading the full results, together with your history. What you can add is the human side: what you felt, at which minute, and how the rest of the day went.

That human side matters because two people can have similar numbers and very different experiences, and a clinician choosing what to do next needs both. A heart rate that rises on standing with no symptoms is a different clinical story from one that comes with dizziness, fog and an afternoon in bed. Your timeline also helps if a result is borderline or if a test is repeated later, because you can compare how you felt on each occasion as well as what the monitor showed.

The upright side of the record can live in one place: POTS Journey (by Health Journey Labs) keeps the Daily check-in with upright load, heart-rate context, heat, fluids, fog and recovery, the Flare Tracker for upright dizziness or a racing heart, and My Labs for result dates including tilt-table notes.

A test-day log table for a tilt table or active stand test

Five moments around a test hold most of the useful detail. The table says what to write at each and what it gives the clinician; it does not interpret any number.

Test-day log, by POTS Journey

Write the numbers exactly as staff say them, with the unit, and do not interpret them. If a number is not read out, write "not told". Cleveland Clinic says you may be asked to avoid caffeine and alcohol for 12 hours prior to the test, so the "before the test" row records what your clinic asked and what you did, as plain facts.

Keep each cell short. The row that most people forget is the last one: the day after a test can be the hardest, and a clinician reading only the numbers will not know.

Use the same wording for the same symptom each time you log it, so that a later test can be compared line by line. If you have had a test before, add its date at the top of the table and note whether the experience was similar. People who have had several tests often notice that the preparation, the time of day and the days before the test differ more than they expected, and the table makes those differences visible.

The rows map to entries in POTS Journey: the Daily Journal takes voice entry for the minute-by-minute line, the Daily check-in covers the rest of the day, My Labs records the date of the test and its notes, and the Flare Tracker flags a day clearly worse than a usual week.

Five steps to log a test day

The log takes a few minutes before and after the test, and almost none during it. Five steps keep that light.

Steps to log a test day, by POTS Journey

1. A few days before, write the preparation instructions the clinic gave you and the date of the test.
2. The morning of the test, write how you felt and anything the instructions asked of you.
3. Right after the test, while it is fresh, write the minute each symptom began and the numbers staff read out.
4. That evening and the next day, write energy, fog and anything you had to cancel.
5. Before the results visit, read the lines once and write the questions you want answered.

The steps measure timing and recovery, and leave the interpretation of the numbers to the clinician. A test can be tiring, so ask someone to come with you if you can and let them write the numbers while you rest. If no one can come, a short voice note in the waiting area, before you go home, is enough to hold the details until the evening, when you can add the rest. The guide to labs, heart rate and standing weeks shows how to keep the test date in the same record as your usual weeks, and the guide to a POTS flare day helps on the day after.

Using POTS Journey for the steps means the Daily Journal takes a spoken line right after the test, the calendar view colors the following days by intensity so the recovery is visible, and Weekly Goals can hold one small aim, such as writing the evening line the same day.

Questions to ask the clinician about the test and its results

Results visits go fast, and the numbers can overshadow what you felt. Phrase each question as "Is it worth reviewing this together?" so the clinician decides what the results and your notes mean together.

Questions to ask the clinician, by POTS Journey

The guide to tracking backward and forward helps if your history stretches back years.

Before the results visit, My Care Team in POTS Journey keeps clinician names and short visit notes with what to ask and bring, and the Doctor Report exports a one-page summary of dates, upright symptoms, heat, fluids, fog and how you functioned, so each question has its lines behind it.

Checklist for testing day: a head-up tilt or active stand test in POTS

A test day has more going on than it seems, and a short checklist helps you remember what matters afterward. Run through it once before the day and once after.

Checklist for test day, by POTS Journey

• The preparation instructions the clinic gave you, written down with the date.
• A plan for getting there and home, and someone to come with you if possible.
• A way to write quickly afterward: a note on your phone or a voice entry.
• The minute each symptom began, written as soon as you can.
• The numbers staff read aloud, with units, or "not told".
• Energy and fog that evening and the next day, with anything you had to cancel.

From POTS Journey, we recommend deciding in advance who will write if you are too tired. The checklist measures what can be recovered: a log written within an hour of the test is far more detailed than one written a week later, and staff often cannot repeat numbers afterward (POTS Journey checklist).

On the day, the Daily Journal in POTS Journey takes a quick voice line, the Flare Tracker records an upright dizziness or racing heart episode with onset and intensity, and My Meds shows the medicine names and timing you entered so the staff can see what you took.

What a test-day record adds to the results, and who interprets them

A test log shows what you felt, when you felt it and how you recovered. It cannot show whether your results meet any threshold, whether another condition explains your symptoms or what should happen next. The sources describe the tests in plain terms, and the clinician interprets them using the full results.

• The log can show: symptoms by minute during the test.
• The log can show: the numbers staff told you, with units.
• The log can show: recovery that day and the next.
• The log cannot show: whether the results fit any diagnosis.
• The log cannot decide: what follow-up or plan comes next.

If you faint, have chest pain, feel unable to breathe or feel in danger at any time, use your local emergency number. If symptoms change sharply after a test, contact a clinician without waiting for the results visit. After the visit, write what was said as a dated line, so the next conversation starts from the same page.

After the visit, the Daily Journal in POTS Journey keeps what the clinician said as text or a voice note, and the insights strengthen as the shared history grows, so the test day becomes one more dated part of the picture.

How POTS Journey can help

A notebook or a note on your phone can carry the test-day log, and a friend can write while you rest. When you want upright symptoms, test dates and recovery in one history, the best POTS apps guide compares the options so you can pick the one that fits.

POTS Journey is a personal POTS tracker from Health Journey Labs on the App Store and Google Play. On this angle it lets you log the minute each symptom began, the numbers staff gave you and the recovery days that followed. Over several weeks that dated history shows the clinician how the test day sits among your usual days. Below is what you can use and how each part helps.

• Daily check-in — Logs physical symptoms, emotional state, nutrition, sleep, exercise, meds, external factors; app-specific items: upright load, heart-rate context, heat, fluids, fog, recovery; read together with the rest of the logged history.
• Daily Journal — Logs free-text notes, voice entry; app-specific items: what upright time cost, heat context, partner talks, visit debriefs, leftover guilt after you canceled, a look-fine mismatch line; read together with scores and other logged history (adds context).
• Flare Tracker — Logs flag a day clearly worse than the usual hard week, onset, intensity, short note; app-specific items: upright dizziness, racing heart, heat crash, fog; read together with history across weeks (one-off spike vs repeating pattern).
• Weekly Goals — Logs one small aim, whether it held; read together with real check-ins.
• My Meds — Logs medicine names, timing, dose; app-specific items: options you already take as prescribed — fluids/salt plans your clinician set, compression notes, other treatments; read together with upright weeks, sleep, heat days, the rest of the tracked history.
• My Labs — Logs result dates; app-specific items: tilt-table notes, blood counts, iron, thyroid, other tests; read together with upright symptoms, fog, function.
• My Care Team — Logs clinicians, short visit notes; app-specific items: tends to ask mainly about heart rate rather than function; read together with logged history; used for: visit prep (what to ask and bring); notes during the visit; review afterward.
• Doctor Report — Logs one-page summary exported from logged history; app-specific items: dates, upright symptoms, heat, fluids, fog, how you functioned; read together with the history already logged; visit type: cardiology or neurology.
• Learn — Logs short education topics, prompts; app-specific items: upright load, heat, pacing, visit prep, upright symptoms on days that look fine; read together with your own logged weeks.
• AI companions — Logs Clara (general chat), specialist companions; app-specific items: knowledge, fitness, nutrition, relationships; read together with your logged history (companions already see it); used for: visit wording; a calm partner script; a soft rain-check line; a listening ear after a hard upright or heat day.
• Food Tracker — Logs meal or drink lines, caffeine, alcohol; read together with energy and symptoms.
• Weight Tracker — Logs scale or body notes; read together with the rest of the logged history.
• Period Tracker — Logs start and stop dates, flow, how heavy or light bleeding felt; read together with upright symptoms, fog, heat, everything else logged.
• My Assessments — Logs structured check-ins beyond daily scores, onboarding life and social context; read together with ongoing history.

Everything you log builds one history, and insights get stronger as it grows. Custom symptoms let you add your own labels.

Sources

• Mayo Clinic: Tilt table test
• Cleveland Clinic: Tilt table test
• Johns Hopkins Medicine: Postural orthostatic tachycardia syndrome (POTS)
• National Health Service: Postural tachycardia syndrome
• Johns Hopkins Medicine: Tilt table testing
• Dysautonomia International: Summary of postural orthostatic tachycardia syndrome

FAQ

The answers below draw on the sources cited in this guide, and the app they mention is POTS Journey (by Health Journey Labs).