Vitamin K1 Testing in Pacifica Explained
This page explains the vitamin k1 test in Pacifica, CA, what it measures, and how to arrange it. The Vitamin K1 test measures the amount of vitamin K1 (phylloquinone) in a blood sample. Vitamin K1 is a fat-soluble vitamin needed for normal blood clotting and bone health. This test is usually ordered when a person has unexplained bleeding or bruising, signs of poor nutrition, or a condition that affects how the body absorbs fats.
For the full, location-independent guide to this test, see Vitamin K1 Testing explained.
- Sample type
- blood
- Category
- Vitamin & Mineral
- Turnaround
- 1-3 business days
- Price
- $192
- Referral
- Not required
The Vitamin K1 test measures the amount of vitamin K1 (phylloquinone) in a blood sample. Vitamin K1 is a fat-soluble vitamin needed for normal blood clotting and bone health. This test is usually ordered when a person has unexplained bleeding or bruising, signs of poor nutrition, or a condition that affects how the body absorbs fats.
About vitamin k1 testing in Pacifica
Set in Pacific, Pacifica is a large town with a population near 38,595. The region is uneven, with coastal metros, inland towns, and rural counties with very different access to testing.
This directory exists so anyone in Pacifica can read what a test measures, understand what it involves, and order it without a referral or a guess.
Orders are handled confidentially: your details stay private and results are released through a secure portal. Because individual sites vary, double-check the lab's own guidance on preparation, timing, and cost.
What it measures
- Vitamin K1 (phylloquinone) level — The main measurement; shows how much vitamin K1 is circulating in the blood.
- Prothrombin time (PT) — A clotting test often checked alongside vitamin K1 because vitamin K affects clotting.
- INR — A standardized version of PT that helps compare clotting results over time.
- Other fat-soluble vitamins — Sometimes vitamin A, D, or E are checked because they share similar absorption pathways.
- Liver-related tests — The liver stores vitamin K and makes clotting proteins, so liver markers may be included.
Preparation
No fasting is usually required for a vitamin K1 blood test. Tell your clinician about all medicines, supplements, and recent vitamin K intake, because these can affect the result.
Results and what they mean
Results are reported as a number with a reference range, and the clinician interprets them alongside your symptoms and other tests. A low or high value does not by itself confirm a diagnosis. This is general information only and is not medical advice; discuss your results with a qualified healthcare professional.
How to order in Pacifica
- Place a confidential order for the vitamin k1 testing online.
- Choose a collection site in or near Pacifica, CA.
- Attend your appointment — most draws take only a few minutes.
- Review results securely, typically within 1–3 days.
Confirm preparation, hours, and any fees with the collection lab in Pacifica before your visit.
Frequently asked questions
Do I need to fast before this test?
Fasting is generally not needed. Follow any specific instructions your clinician gives you.
What can affect my vitamin K1 level?
Diet, vitamin supplements, some antibiotics, blood thinners, and conditions that affect fat absorption can change the result.
How long do results take?
Results are typically available within 1 to 3 business days, though timing can vary by lab.
Is this test the same as a vitamin K clotting test?
No. Vitamin K1 testing measures the vitamin level itself, while clotting tests such as PT and INR measure how well blood clots.