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Mid-Atlantic · Vitamin K1 Test – Vitamin Deficiency

Vitamin K1 Test – Vitamin Deficiency in Delaware

This page explains the vitamin k1 test – vitamin deficiency, what it measures, and how to order it. A Vitamin K1 test measures the level of phylloquinone in your blood to help assess whether you may have a deficiency. It is typically used when a clinician suspects a problem with blood clotting or fat absorption.

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

Lab requirements in Delaware

Here is what you need before ordering and completing the Vitamin K1 Test – Vitamin Deficiency in DE. 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
Follow the collection lab's instructions regarding fasting, medications, or timing of the draw. Because preparation can vary, always confirm specific steps with the lab before your…
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

This blood test measures Vitamin K1, also called phylloquinone, which is a fat-soluble vitamin needed for normal blood clotting. The test helps evaluate whether low levels might explain unusual bleeding or bruising. It is not a routine screening test and is usually ordered when there is a specific reason to check Vitamin K status.

What it measures

  • Vitamin K1 (phylloquinone) — reflects the amount of this fat-soluble vitamin circulating in your blood
  • Prothrombin time (PT) or INR — sometimes ordered together to assess blood clotting function
  • Other fat-soluble vitamins — may be checked if malabsorption is suspected

What the test involves

The test requires a standard blood draw from a vein in your arm, usually collected into a tube that protects the sample from light. No special preparation beyond the collection lab's instructions is typically needed.

Why it is often ordered

A clinician may order this test if you have unexplained bleeding, easy bruising, or a condition that affects fat absorption, such as certain digestive disorders. It can also be used to monitor Vitamin K status in people with liver disease or those taking blood-thinning medications.

Preparation

Follow the collection lab's instructions regarding fasting, medications, or timing of the draw. Because preparation can vary, always confirm specific steps with the lab before your appointment.

How results are reported

Results are reported as a numeric value for Vitamin K1, often in nanograms per milliliter, and are interpreted alongside your symptoms and other tests. Reference ranges vary by laboratory, so your result should be discussed with your clinician in the context of the lab's own range.

Before you go

  • Whether fasting or dietary restrictions are needed before the draw
  • If any medications or supplements should be paused before testing
  • How and when results will be shared with you

Cities

Vitamin K1 Test – Vitamin Deficiency in Delaware communities

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

Dover125,931Vitamin K1 Test – Vitamin DeficiencyWilmington70,926Vitamin K1 Test – Vitamin DeficiencyNewark31,393Vitamin K1 Test – Vitamin DeficiencyMiddletown23,001Vitamin K1 Test – Vitamin DeficiencyBear21,625Vitamin K1 Test – Vitamin DeficiencyGlasgow15,342Vitamin K1 Test – Vitamin DeficiencyBrookside14,202Vitamin K1 Test – Vitamin DeficiencyHockessin13,464Vitamin K1 Test – Vitamin DeficiencySmyrna12,619Vitamin K1 Test – Vitamin DeficiencyPike Creek Valley11,718Vitamin K1 Test – Vitamin DeficiencyMilford11,249Vitamin K1 Test – Vitamin DeficiencyClaymont9,508Vitamin K1 Test – Vitamin DeficiencyWilmington Manor8,212Vitamin K1 Test – Vitamin DeficiencyNorth Star8,009Vitamin K1 Test – Vitamin DeficiencySeaford7,852Vitamin K1 Test – Vitamin DeficiencyPike Creek7,398Vitamin K1 Test – Vitamin DeficiencyGeorgetown7,079Vitamin K1 Test – Vitamin DeficiencyEdgemoor6,681Vitamin K1 Test – Vitamin DeficiencyMillsboro6,542Vitamin K1 Test – Vitamin DeficiencyElsmere6,167Vitamin K1 Test – Vitamin DeficiencyNew Castle5,482Vitamin K1 Test – Vitamin DeficiencyHighland Acres3,910Vitamin K1 Test – Vitamin DeficiencyLaurel3,886Vitamin K1 Test – Vitamin DeficiencyClayton3,845Vitamin K1 Test – Vitamin DeficiencyCamden3,786Vitamin K1 Test – Vitamin DeficiencyRising Sun-Lebanon3,772Vitamin K1 Test – Vitamin DeficiencyHarrington3,730Vitamin K1 Test – Vitamin DeficiencyLewes3,257Vitamin K1 Test – Vitamin DeficiencyMilton3,224Vitamin K1 Test – Vitamin DeficiencyDover Base Housing3,135Vitamin K1 Test – Vitamin DeficiencyLong Neck3,022Vitamin K1 Test – Vitamin DeficiencySelbyville2,806Vitamin K1 Test – Vitamin DeficiencyGreenville2,763Vitamin K1 Test – Vitamin DeficiencyTownsend2,671Vitamin K1 Test – Vitamin DeficiencyOcean View2,556Vitamin K1 Test – Vitamin DeficiencyBridgeville2,499Vitamin K1 Test – Vitamin DeficiencyDelmar2,241Vitamin K1 Test – Vitamin DeficiencyRiverview2,091Vitamin K1 Test – Vitamin DeficiencyDelaware City1,885Vitamin K1 Test – Vitamin DeficiencyWoodside East1,867Vitamin K1 Test – Vitamin DeficiencyMillville1,790Vitamin K1 Test – Vitamin DeficiencyKent Acres1,756Vitamin K1 Test – Vitamin DeficiencyCheswold1,705Vitamin K1 Test – Vitamin DeficiencyWyoming1,636Vitamin K1 Test – Vitamin DeficiencyRodney Village1,472Vitamin K1 Test – Vitamin DeficiencyGreenwood1,459Vitamin K1 Test – Vitamin DeficiencyRehoboth Beach1,392Vitamin K1 Test – Vitamin DeficiencyBellefonte1,294Vitamin K1 Test – Vitamin DeficiencyNewport1,224Vitamin K1 Test – Vitamin DeficiencySt. Georges1,197Vitamin K1 Test – Vitamin DeficiencyFelton1,144Vitamin K1 Test – Vitamin DeficiencyFrankford1,088Vitamin K1 Test – Vitamin DeficiencyDagsboro1,087Vitamin K1 Test – Vitamin Deficiency