Lab test requirements · preparation, ID, referral, and timing United States · 0 communities

Midwest · Online Liver Function Test (LFT Test)

Online Liver Function Test (LFT Test) in Missouri

Online Liver Function Test (LFT Test) can be ordered without a referral from your own doctor, and this guide covers what to expect. A liver function test checks how well your liver is working by measuring several substances in your blood.

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

Lab requirements in Missouri

Here is what you need before ordering and completing the Online Liver Function Test (LFT Test) in MO. 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 vary by laboratory, so follow the specific instructions provided by the collection lab. Some tests may require fasting, while others do not.
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

A liver function test is a group of blood tests that assess the health and function of your liver. It measures levels of enzymes, proteins, and other substances that can indicate liver damage or disease.

What it measures

  • Albumin — a protein made by the liver that reflects liver function and nutritional status
  • Total Protein — measures the total amount of proteins in the blood, including albumin and globulins
  • ALP (Alkaline Phosphatase) — an enzyme found in the liver, bile ducts, and bone
  • ALT (Alanine Aminotransferase) — an enzyme primarily found in the liver that can indicate liver damage
  • AST (Aspartate Aminotransferase) — an enzyme found in the liver and other tissues that can indicate liver damage
  • Bilirubin — a yellow pigment produced from the breakdown of red blood cells that is processed by the liver

What the test involves

The test requires a standard blood draw from a vein in your arm. The sample is then sent to a laboratory for analysis.

Why it is often ordered

A clinician may order a liver function test to screen for liver problems, monitor a known liver condition, or check for side effects of certain medications. It can also help evaluate symptoms like jaundice, fatigue, or abdominal pain.

Preparation

Preparation instructions vary by laboratory, so follow the specific instructions provided by the collection lab. Some tests may require fasting, while others do not.

How results are reported

Results are typically reported as numerical values for each marker, often with a reference range for comparison. Reference ranges can vary between laboratories, so your results should be interpreted by a healthcare professional.

Before you go

  • Whether fasting is required before the test
  • Any medications or supplements you are taking that might affect results
  • The expected turnaround time for results

Cities

Online Liver Function Test (LFT Test) in Missouri communities

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

St. Louis2,092,481Online Liver Function Test (LFT Test)Kansas City1,644,497Online Liver Function Test (LFT Test)Springfield298,722Online Liver Function Test (LFT Test)Columbia136,736Online Liver Function Test (LFT Test)Independence122,230Online Liver Function Test (LFT Test)Lee's Summit100,772Online Liver Function Test (LFT Test)O'Fallon90,802Online Liver Function Test (LFT Test)Joplin81,025Online Liver Function Test (LFT Test)St. Joseph80,099Online Liver Function Test (LFT Test)St. Charles70,218Online Liver Function Test (LFT Test)Blue Springs58,265Online Liver Function Test (LFT Test)St. Peters57,289Online Liver Function Test (LFT Test)Florissant52,382Online Liver Function Test (LFT Test)Chesterfield49,675Online Liver Function Test (LFT Test)Wentzville43,213Online Liver Function Test (LFT Test)Jefferson City43,076Online Liver Function Test (LFT Test)Cape Girardeau39,415Online Liver Function Test (LFT Test)Wildwood35,384Online Liver Function Test (LFT Test)Oakville35,357Online Liver Function Test (LFT Test)University City34,953Online Liver Function Test (LFT Test)Ballwin30,998Online Liver Function Test (LFT Test)Liberty30,129Online Liver Function Test (LFT Test)Raytown29,893Online Liver Function Test (LFT Test)Kirkwood29,233Online Liver Function Test (LFT Test)Mehlville28,672Online Liver Function Test (LFT Test)Maryland Heights28,141Online Liver Function Test (LFT Test)Gladstone26,825Online Liver Function Test (LFT Test)Grandview25,931Online Liver Function Test (LFT Test)Hazelwood25,466Online Liver Function Test (LFT Test)Belton23,832Online Liver Function Test (LFT Test)Webster Groves23,817Online Liver Function Test (LFT Test)Nixa22,925Online Liver Function Test (LFT Test)Raymore22,722Online Liver Function Test (LFT Test)Sedalia21,696Online Liver Function Test (LFT Test)Ozark20,874Online Liver Function Test (LFT Test)Arnold20,808Online Liver Function Test (LFT Test)Old Jamestown20,382Online Liver Function Test (LFT Test)Rolla19,949Online Liver Function Test (LFT Test)Warrensburg19,509Online Liver Function Test (LFT Test)Affton18,925Online Liver Function Test (LFT Test)Ferguson18,826Online Liver Function Test (LFT Test)Concord18,760Online Liver Function Test (LFT Test)Creve Coeur18,648Online Liver Function Test (LFT Test)Republic18,313Online Liver Function Test (LFT Test)Manchester18,308Online Liver Function Test (LFT Test)Farmington17,959Online Liver Function Test (LFT Test)Spanish Lake17,721Online Liver Function Test (LFT Test)Kirksville17,600Online Liver Function Test (LFT Test)Hannibal17,165Online Liver Function Test (LFT Test)Clayton16,905Online Liver Function Test (LFT Test)Lake St. Louis16,665Online Liver Function Test (LFT Test)Poplar Bluff16,318Online Liver Function Test (LFT Test)Lemay16,312Online Liver Function Test (LFT Test)Sikeston16,054Online Liver Function Test (LFT Test)Overland15,908Online Liver Function Test (LFT Test)Fort Leonard Wood15,629Online Liver Function Test (LFT Test)Grain Valley15,435Online Liver Function Test (LFT Test)Carthage15,395Online Liver Function Test (LFT Test)Jackson15,272Online Liver Function Test (LFT Test)Lebanon14,880Online Liver Function Test (LFT Test)