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Mountain West · Vitamin B1 Test – Vitamin Deficiency Tests

Vitamin B1 Test – Vitamin Deficiency Tests in Montana

Vitamin B1 Test – Vitamin Deficiency Tests can be ordered without a referral from your own doctor, and this guide covers what to expect. This blood test measures vitamin B1 (thiamine) levels to help assess whether a deficiency may be present. It is typically used when a clinician suspects inadequate intake or absorption.

Sample typeBlood and/or urine at a collection lab
ReferralIncluded — no referral from your own doctor needed

Lab requirements in Montana

Here is what you need before ordering and completing the Vitamin B1 Test – Vitamin Deficiency Tests in MT. Review each item and confirm the details with the collection lab.

Physician's order
Included. A physician's order is required for lab testing and is provided for you by our partner's physicians — no referral from your own doctor is needed.
Fasting
Fasting is required for this test — follow the collection lab's instructions.
Preparation
Preparation instructions can vary, so it is important to follow the specific directions provided by the collection laboratory. This may include fasting or avoiding certain supplements…
Sample & visit
A blood and/or urine sample is collected; the visit usually takes about 10 minutes.
Identification
Bring the lab requisition form from your account. The collection lab may also ask for a government-issued photo ID.
Turnaround
1-3 business days
Availability
Our partner lab does not serve ND, RI, NY, NJ, MD or HI. Confirm availability for your location with the collection lab.

Before you go

  • Order your test before visiting a lab, then use the requisition form in your account.
  • Print the requisition form, or fax it to the lab directly from your account.
  • No scheduling is needed — visit the collection lab during its normal business hours.
  • A blood and/or urine sample is collected; the visit usually takes about 10 minutes.
  • Bring a government-issued photo ID in case the lab requests it.
  • Results are posted to your secure account within 1–3 business days.

Requirements are summarized from our partner lab's published policies. Preparation and availability can change — confirm current instructions with the collection lab before your visit.

What this test is

The vitamin B1 test is a laboratory analysis that quantifies thiamine in the blood. Thiamine is a water-soluble vitamin essential for energy metabolism and proper nerve function. The test can help identify low levels that may contribute to certain symptoms.

What it measures

  • Vitamin B1 (thiamine) — reflects the amount of thiamine present in the blood
  • Thiamine diphosphate — sometimes measured as the active form of thiamine in red blood cells
  • Transketolase activity — an enzyme function test that can indirectly indicate thiamine status

What the test involves

A standard blood draw is performed, usually from a vein in the arm, to collect a small sample for analysis. The sample is then processed by the laboratory to measure thiamine concentration.

Why it is often ordered

A clinician may order this test when a person has symptoms suggesting thiamine deficiency, such as confusion, tingling, or muscle weakness. It can also be used to monitor individuals with conditions that affect nutrient absorption or those with increased nutritional needs.

Preparation

Preparation instructions can vary, so it is important to follow the specific directions provided by the collection laboratory. This may include fasting or avoiding certain supplements before the test.

How results are reported

Results are typically reported as a numeric value that is compared to a reference range established by the testing laboratory. Reference ranges can differ between laboratories, so results should always be interpreted in the context of the lab that performed the test.

Before you go

  • Whether fasting is required before the test
  • If any medications or supplements should be avoided
  • The expected turnaround time for results

Cities

Vitamin B1 Test – Vitamin Deficiency Tests in Montana communities

Choose your city for local context and to order this test.

Billings124,973Vitamin B1 Test – Vitamin Deficiency TestsMissoula92,863Vitamin B1 Test – Vitamin Deficiency TestsGreat Falls62,112Vitamin B1 Test – Vitamin Deficiency TestsBozeman51,574Vitamin B1 Test – Vitamin Deficiency TestsButte34,368Vitamin B1 Test – Vitamin Deficiency TestsHelena32,060Vitamin B1 Test – Vitamin Deficiency TestsKalispell24,260Vitamin B1 Test – Vitamin Deficiency TestsBelgrade10,555Vitamin B1 Test – Vitamin Deficiency TestsHavre9,417Vitamin B1 Test – Vitamin Deficiency TestsAnaconda9,380Vitamin B1 Test – Vitamin Deficiency TestsHelena Valley Southeast9,316Vitamin B1 Test – Vitamin Deficiency TestsHelena Valley West Central8,550Vitamin B1 Test – Vitamin Deficiency TestsMiles City8,441Vitamin B1 Test – Vitamin Deficiency TestsLivingston8,110Vitamin B1 Test – Vitamin Deficiency TestsEvergreen7,988Vitamin B1 Test – Vitamin Deficiency TestsWhitefish7,783Vitamin B1 Test – Vitamin Deficiency TestsLaurel7,164Vitamin B1 Test – Vitamin Deficiency TestsLockwood7,162Vitamin B1 Test – Vitamin Deficiency TestsSidney6,240Vitamin B1 Test – Vitamin Deficiency TestsLewistown5,967Vitamin B1 Test – Vitamin Deficiency TestsFour Corners5,649Vitamin B1 Test – Vitamin Deficiency TestsColumbia Falls5,304Vitamin B1 Test – Vitamin Deficiency TestsOrchard Homes5,170Vitamin B1 Test – Vitamin Deficiency TestsPolson5,161Vitamin B1 Test – Vitamin Deficiency TestsGlendive4,928Vitamin B1 Test – Vitamin Deficiency TestsBigfork4,683Vitamin B1 Test – Vitamin Deficiency TestsHelena Valley Northwest4,653Vitamin B1 Test – Vitamin Deficiency TestsHamilton4,632Vitamin B1 Test – Vitamin Deficiency TestsLolo4,338Vitamin B1 Test – Vitamin Deficiency TestsMalmstrom AFB4,098Vitamin B1 Test – Vitamin Deficiency TestsDillon3,930Vitamin B1 Test – Vitamin Deficiency TestsHardin3,754Vitamin B1 Test – Vitamin Deficiency TestsHelena Valley Northeast3,607Vitamin B1 Test – Vitamin Deficiency TestsNorth Browning3,253Vitamin B1 Test – Vitamin Deficiency TestsGlasgow3,192Vitamin B1 Test – Vitamin Deficiency TestsBig Sky3,141Vitamin B1 Test – Vitamin Deficiency TestsShelby3,139Vitamin B1 Test – Vitamin Deficiency TestsCut Bank3,049Vitamin B1 Test – Vitamin Deficiency TestsDeer Lodge2,938Vitamin B1 Test – Vitamin Deficiency TestsConrad2,758Vitamin B1 Test – Vitamin Deficiency TestsLibby2,745Vitamin B1 Test – Vitamin Deficiency TestsMontana City2,735Vitamin B1 Test – Vitamin Deficiency TestsWolf Point2,638Vitamin B1 Test – Vitamin Deficiency TestsLakeside2,463Vitamin B1 Test – Vitamin Deficiency TestsLame Deer2,231Vitamin B1 Test – Vitamin Deficiency TestsTownsend2,224Vitamin B1 Test – Vitamin Deficiency TestsEast Missoula2,162Vitamin B1 Test – Vitamin Deficiency TestsColstrip2,094Vitamin B1 Test – Vitamin Deficiency TestsThree Forks2,084Vitamin B1 Test – Vitamin Deficiency TestsColumbus2,069Vitamin B1 Test – Vitamin Deficiency TestsPablo2,037Vitamin B1 Test – Vitamin Deficiency TestsRed Lodge2,032Vitamin B1 Test – Vitamin Deficiency TestsMalta2,031Vitamin B1 Test – Vitamin Deficiency TestsCrow Agency1,993Vitamin B1 Test – Vitamin Deficiency TestsStevensville1,959Vitamin B1 Test – Vitamin Deficiency TestsKing Arthur Park1,951Vitamin B1 Test – Vitamin Deficiency TestsClancy1,902Vitamin B1 Test – Vitamin Deficiency TestsManhattan1,884Vitamin B1 Test – Vitamin Deficiency TestsWest Glendive1,868Vitamin B1 Test – Vitamin Deficiency TestsChoteau1,826Vitamin B1 Test – Vitamin Deficiency Tests