Unmeasured is unmanaged.

Most of what goes wrong in a body announces itself late. Arteries stiffen for years before a walk becomes painful. The small nerve fibers that run the sweat glands of the feet degrade before a blood sugar test looks abnormal. The autonomic nervous system loses the beat-to-beat flexibility that keeps blood pressure steady long before anyone faints. Each of those changes is measurable now, in an office, without a needle or a scan.

Measura measures. It does not diagnose. It does not treat. A clinician who knows your history turns the measurements into a diagnosis and a plan.

If you are not sure which test you need, tap the directory assistant (the light in the corner of the page) and it will point you to the right place. This page is part of our pain and metabolic medicine directory.

Why measure before symptoms appear?

Ordinary medical care is good at responding to events and weak at detecting the long, silent slope that leads to one.

A clinician managing blood pressure has a number. A clinician managing autonomic dysfunction, small-fiber loss or vascular stiffness usually has an impression. Measura replaces the impression with a reading that can be compared against the same reading six months later.

Metabolic health is rarer than most people assume. Under 12.2% of American adults met a full definition of optimal metabolic health in the National Health and Nutrition Examination Survey for 2009 to 2016, and on the tighter criteria applied after 2021 the figure is under 7%, so roughly nine in ten did not. In the Padda Institute population the picture is starker: under 3% of patients overall, and under 1% of chronic pain patients, meet the same definition. Those clinic numbers are practice-reported figures from our own population, not trial outcomes, and individual results vary.

Not a reason for alarm. A reason to look. Nearly every change these tests detect is easier to move early than late.

Who oversees Measura testing?

Measura's medical director is Dr. Gurpreet Singh Padda, MD, MBA, MHP, a St. Louis physician who holds Montreal Cognitive Assessment rater certification. His patients' pain, fatigue, numbness and dizziness kept turning out to be vascular, autonomic and metabolic problems nobody had measured. He kept finding them late. Measura is how he finds them early.

Who should be tested?

You do not need symptoms to qualify. Measura is designed for:

• Adults over 50 with a cardiovascular risk factor. One is enough, and it does not have to be a diagnosis.
• Everyone over 70. Age alone qualifies. Peripheral artery disease, measured by ankle-brachial index, affects about 5% of adults in their late forties and about 18% by their late eighties in the wealthier countries surveyed. In a national survey of US adults 40 and over, 35.4% had measurable vestibular dysfunction, and those who also reported dizziness had twelve times the odds of falling.
• Anyone with high blood pressure, which damages small vessels and the autonomic control of blood pressure at the same time.
• Anyone carrying excess weight. Body composition, not the number on the scale, is what matters.
• Anyone who smokes, or used to. Smoking is the single strongest modifiable risk factor for peripheral artery disease.
• Anyone with diabetes or prediabetes. Nerve and vessel changes begin before blood sugar readings look convincing.

Symptoms strengthen the case: burning, tingling or numbness in the feet, worse at night; feet that have stopped sweating or sweat oddly; cuts that heal slowly; cold feet or one foot colder than the other; calf or thigh cramping on walking that stops with rest; lightheadedness on standing; exercise intolerance out of proportion to fitness; unexplained changes in digestion or bladder habit.

Measura is not for emergencies. Chest pain, sudden weakness, a cold and painful limb, or a sudden change in vision or speech needs an emergency department. Call 911.

What does Measura measure?

Measura is not one test. It is a set of assessments chosen so each answers a question the others cannot, and so the answers can be read together. A normal ankle-brachial index does not rule out calcified arteries. A normal nerve conduction study does not rule out small-fiber damage. Reading them together is the point.

How is circulation tested?

• Ankle-brachial index. Blood pressure at the ankle compared with the arm, the standard non-invasive way to find narrowed leg arteries. The same cuffs produce a toe-brachial index and an arterial stiffness index. A ratio that is unexpectedly high is not good news: it usually means the ankle arteries are too stiff to compress, common after years of diabetes or kidney disease, which is exactly why the toe index is measured too.
• Pulse volume recording. The change in limb volume with each heartbeat. Its waveform does not depend on the artery being compressible, so it stays informative where calcification makes the index misleading.
• Photoplethysmography. The shape of the pulse waveform at the finger and toe, read with light.
• Arterial stiffness and endothelial function. How rigid the vessel wall has become, and how well its inner lining still responds. The endothelium releases the signals that widen and narrow vessels and regulate clotting and inflammation, and its dysfunction is one of the earliest measurable changes in vascular disease, tightly tied to insulin resistance. It is one of the more encouraging measurements, because it can move.

How are the small nerves and autonomic system tested?

• Sudomotor testing. You rest your palms and soles on metal plates for about three minutes while a very low voltage stimulates the sweat glands, and the device measures the electrochemical reaction with the chloride in sweat. The nerves that run sweat glands are thin, unmyelinated and very long, which makes them among the first damaged by high blood sugar, inflammation and poor skin circulation. That is why this test can be abnormal while a conventional nerve conduction study is normal. Feet that stop sweating crack, and cracked skin on a foot that has lost sensation is how a serious wound begins. In one cohort of amyloid polyneuropathy carriers, foot conductance detected dysautonomia with 76% sensitivity and 85% specificity.
• Autonomic nervous system testing. You rest while heart rate and pulse waveform are recorded, then breathe deeply to a prompt, stand up from lying down and exhale briefly against resistance. Each challenge asks a different part of the system a question: deep breathing tests parasympathetic control, standing tests the sympathetic response that keeps blood pressure from falling, and the exhale tests both. It takes about twenty minutes.
• Heart rate variability, the beat-to-beat variation in heart rate, analyzed in time and frequency.
• Cardiac autonomic reflex tests, the standardized maneuvers used to assess cardiac autonomic neuropathy.

How are metabolism, balance and memory tested?

• Indirect calorimetry. You breathe into a mask for about ten minutes, fasted and at rest, and the device measures oxygen used and carbon dioxide produced. That gives your resting metabolic rate and respiratory quotient, which shows whether you are burning mostly fat or carbohydrate. Almost every calorie target comes from an equation built on population averages; it works badly for someone with a lot of muscle, someone who has lost a great deal of weight, someone with thyroid disease, or an older adult with reduced muscle. If a nutrition plan has stopped working, this is the measurement that most often explains why.
• Bioimpedance body composition. Lean mass, fat mass and body water, the detail BMI throws away.
• Vestibular and balance testing. Goggles record eye movements as you follow targets, hold your gaze and change position. Balance depends on the inner ear, the eyes and sensation from the feet, and this battery turns "I feel unsteady" into an objective measure of fall risk, usually in under 25 minutes. In 2020, 27.6% of US adults 65 and over reported a fall in the previous year.
• Cognitive assessment. A short, structured pencil-and-paper screen of about ten minutes. Its purpose is comparison: a screen today makes a screen in two years informative. A low score does not mean dementia; depression, poor sleep, pain, medication, thyroid disease, vitamin B12 deficiency and hearing loss all lower scores, and several are correctable.
• Laboratory panels, when ordered. Beyond a standard panel, these can include fasting insulin, C-peptide and fructosamine alongside glucose and A1C, because insulin rises years before glucose does; inflammatory markers; lipid particle analysis; a complete thyroid panel; and nutrient status including B12, magnesium and the omega-6 to omega-3 ratio.

Cognition and balance are paired on purpose. Attention and the ability to switch tasks are part of how a person recovers from a stumble. Screening balance without screening thinking describes half a risk.

What happens at a Measura appointment?

Most of the history is collected beforehand, so the appointment is spent measuring. You stay dressed, you lie down for most of it, and nothing in the standard assessment involves a needle, injection, dye or radiation. The sequence runs roughly:

1. Height, weight, waist, blood pressure, pulse and oxygen saturation
2. Body composition on a platform with two handles
3. The vascular study, with cuffs on both arms and ankles and sensors on a finger and toe
4. Sudomotor plates under the palms and soles
5. Autonomic testing with the breathing and standing maneuvers
6. Metabolic rate through a mask, at rest
7. Balance and vestibular testing, if indicated
8. Cognitive screening, if indicated
9. A blood draw, if laboratory work was ordered

A full assessment takes most of a morning or afternoon. A focused one, say vascular plus sudomotor for numb feet, can be under an hour. The plan is agreed before you book. Afterward you can drive, eat, work and exercise immediately.

If you have a pacemaker, implanted defibrillator or another implanted electrical device, say so when you book; some assessments are adjusted or omitted.

How should you prepare?

Several of these tests measure physiology that food, caffeine, nicotine and medication move around, so preparation matters.

• Avoid alcohol for 24 hours and unusually heavy exercise the day before, and keep to your usual sleep.
• No caffeine or nicotine the morning of the test; both change vascular tone and heart rate variability.
• Fast overnight if asked; water is fine and encouraged.
• Wear loose sleeves and pants that roll above the elbow and knee, and expect bare feet for the sudomotor plates.
• Do not stop any medication unless you are told to.

How do you read the results?

A Measura report is not a verdict. It is a set of measurements with reference ranges, grouped the way the body is organized: circulation, small nerve fibers, autonomic function, metabolism and cognition. The useful part is usually the pattern, not a single number.

Any measurement can be moved by a bad night, a cup of coffee, a new medication, dehydration or an ordinary virus, which is why the results are read together and why a genuinely abnormal result is usually repeated before anything is concluded. Most in-office results are available the same day; laboratory work follows. The report is reviewed with a clinician and goes to whichever physician you name.

The most valuable property of these tests is that they repeat. A stiffness index that has not moved in two years reassures in a way no first reading can. One that has moved is actionable while it is still early.

What does testing lead to?

Measurement only matters if it changes what happens next. Within the practice, abnormal small-fiber results connect to peripheral neuropathy treatment. Insulin and metabolic findings connect to type 2 diabetes reversal and medical weight loss. Pain that turns out to sit on a vascular or metabolic terrain connects to interventional pain management.

What does Measura offer referring physicians?

You are already managing the consequences of vascular, autonomic and metabolic dysfunction. Measura measures it, so the management stops being inferential. The case is clinical:

• Small-fiber and autonomic changes precede the diagnoses they belong to, so disease is found earlier in patients you already see.
• Structured cognitive screening is paired with objective vestibular and balance testing in the population most likely to fall.
• Reports are filed to the chart as structured documents, and the data maps onto the MIPS and HEDIS quality measures you already report.
• Standing orders make patient selection reproducible, and the protocol is written to fit an annual wellness visit and an existing clinic day.

Patients can also arrange testing themselves, with no referral, and name the clinician who should receive the report.

How do you reach Measura?

4477 Woodson Rd, Suite 201, St. Louis, MO 63134. Off Woodson Road, just south of Lambert International Airport, a few minutes from I-70. Parking on site, level with the entrance. Monday to Friday, 9:00 a.m. to 5:00 p.m.

The first step is a conversation, not a booking: tell the team what you are trying to find out, and they will explain which assessments answer that question. Send your name and number through Measura's contact form and the team calls you back. Keep symptoms, diagnoses and images out of the form; a website form is not a secure medical channel.

Frequently asked questions

My doctor already checks my blood pressure and cholesterol. Why add this?

Those numbers matter, and they are not these measurements. Blood pressure gives the pressure. It does not show how stiff the vessel wall has become or whether the small nerve fibers are intact.

Is there an age that is too young?

A healthy adult in their twenties with no risk factors is not the target. Under 60 the aim is finding modifiable change early; over 75 it shifts toward function, balance and fall risk.

What should I bring?

Identification, your insurance card, a complete medication and supplement list, recent laboratory results, and your glasses and hearing aids. A screen taken without them measures your eyes and ears, not your thinking.

Can someone come with me?

Yes, and it helps if the visit includes cognitive screening or balance testing.

What if everything comes back normal?

That is a useful result. It becomes the baseline every future reading is compared against.