Blood Clotting Disorders Blood Test

What is Blood Clotting Disorders?

Blood clotting disorders are conditions that affect the body's ability to form clots properly, leading to either excessive bleeding or dangerous clot formation. These disorders result from deficiencies in clotting factors, abnormalities in platelets, or genetic mutations affecting coagulation proteins like Factor V Leiden or prothrombin. The Prothrombin Time (PT) with INR and Partial Thromboplastin Time (PTT) is the most important test for diagnosing blood clotting disorders.

RECOMMENDED TEST Prothrombin Time (PT) (INR) and Partial Thromboplastin Time (PTT)
What's included
Fast & easy, results by email & SMS
No extra fees paid at the lab
No need to visit a doctor
Private & confidential
No insurance needed
Results explained
Why Private MD Labs?
90-day money-back guarantee Lab order in minutes Save a trip to the doctor Low prices since 2005 Labs within 2 miles

What causes blood clotting disorders?

Blood clotting disorders are caused by genetic mutations, acquired conditions affecting clotting factors, or abnormalities in the coagulation cascade. Inherited forms like hemophilia result from deficiencies in specific clotting factors such as Factor VIII or Factor IX, while conditions like Factor V Leiden and prothrombin G20210A mutation cause excessive clotting. Acquired causes include liver disease, vitamin K deficiency, autoimmune conditions like antiphospholipid syndrome, and medications such as warfarin or heparin that affect the clotting process.

What is the best test for blood clotting disorders?

The Prothrombin Time (PT) with INR and Partial Thromboplastin Time (PTT) is the most important test for blood clotting disorders because it evaluates both major clotting pathways in your blood. The PT/INR measures the extrinsic pathway and factors II, V, VII, and X, while the PTT assesses the intrinsic pathway and factors VIII, IX, XI, and XII. A high INR indicates increased bleeding risk, while a low INR suggests higher clotting risk. Together, these tests identify which part of the clotting system is affected and help diagnose conditions like hemophilia, von Willebrand disease, thrombophilia, and monitor blood-thinning medication effectiveness.

When should I get tested for blood clotting disorders?

You should get tested if you experience unexplained bruising, prolonged bleeding from cuts or dental work, frequent nosebleeds, unusually heavy menstrual periods, or blood in your urine or stool. Testing is also important if you have a family history of bleeding or clotting disorders, recurrent miscarriages, unexplained blood clots like deep vein thrombosis or pulmonary embolism, or before starting blood-thinning medications. If you notice unusual swelling in your legs, chest pain with breathing difficulty, or wounds that bleed excessively, seek immediate testing and medical attention.

What are the symptoms of blood clotting disorders?
Symptoms vary depending on whether you have a bleeding disorder or clotting disorder. Bleeding disorders cause easy bruising, prolonged bleeding from minor cuts, frequent nosebleeds, heavy menstrual periods, bleeding gums, and joint pain or swelling from internal bleeding. Clotting disorders produce leg pain or swelling from deep vein thrombosis, sudden shortness of breath from pulmonary embolism, chest pain, unexplained stroke symptoms like weakness or speech problems, and recurrent miscarriages. Some people have no symptoms until a major bleeding event or clot formation occurs.
Who is at risk for blood clotting disorders?
People with a family history of bleeding or clotting disorders have higher genetic risk, particularly for conditions like hemophilia, Factor V Leiden, and von Willebrand disease. Other risk factors include liver disease, vitamin K deficiency, autoimmune conditions, pregnancy, prolonged immobility, recent surgery, cancer, obesity, smoking, and use of hormonal birth control or hormone replacement therapy. Older adults and people taking blood-thinning medications like warfarin or aspirin also need monitoring for clotting function changes.
What happens if blood clotting disorders are left untreated?
Untreated bleeding disorders can lead to life-threatening hemorrhage, joint damage from repeated internal bleeding, chronic pain, disability from joint destruction, and severe anemia from blood loss. Untreated clotting disorders cause dangerous blood clots leading to deep vein thrombosis, pulmonary embolism which can be fatal, stroke causing permanent brain damage or death, heart attack, pregnancy complications including miscarriage and stillbirth, and organ damage from blocked blood vessels. Early diagnosis and treatment significantly reduce these complications and improve quality of life.
Can blood clotting disorders be diagnosed with a blood test?
Yes, blood clotting disorders are primarily diagnosed through specialized blood tests that measure coagulation function. The PT/INR and PTT tests evaluate how long your blood takes to clot and which clotting pathways are affected. Additional tests include fibrinogen levels, D-dimer to detect clot breakdown products, specific clotting factor assays to measure individual factors like VIII or IX, platelet count and function tests, and genetic testing for inherited mutations like Factor V Leiden. These tests provide comprehensive information about your clotting system and guide treatment decisions.
How are blood clotting disorders treated?
Treatment depends on whether you have a bleeding or clotting disorder. Bleeding disorders are treated with clotting factor replacement therapy, medications like desmopressin that stimulate clotting factor release, antifibrinolytic drugs to prevent clot breakdown, and vitamin K supplementation if deficient. Clotting disorders require anticoagulant medications like warfarin, heparin, or direct oral anticoagulants, compression stockings to prevent leg clots, and lifestyle modifications including regular movement and hydration. Your healthcare provider tailors treatment to your specific condition, severity, and individual risk factors.
How can I prevent complications from blood clotting disorders?
Prevention requires regular monitoring with blood tests to ensure proper treatment levels, taking prescribed medications exactly as directed, avoiding medications that worsen bleeding or clotting like NSAIDs without medical approval, and maintaining a healthy weight. Stay physically active with regular movement to prevent clots, wear medical alert identification, inform all healthcare providers about your condition before procedures, and attend regular follow-up appointments. Manage other health conditions like high blood pressure and diabetes, avoid smoking, and stay hydrated to maintain healthy blood flow.
What can I do at home for blood clotting disorders?
At home, maintain a consistent diet if taking warfarin since vitamin K in foods affects medication levels, apply pressure to cuts for longer periods to stop bleeding, use soft toothbrushes to prevent gum bleeding, and avoid contact sports or activities with high injury risk if you have a bleeding disorder. For clotting disorders, elevate your legs regularly, avoid prolonged sitting or standing, stay well-hydrated, perform leg exercises during long travel, and wear compression stockings if recommended. Keep a symptom diary, know warning signs requiring immediate medical attention, and maintain open communication with your healthcare provider about any changes in symptoms.
How’s this work?
Getting your blood test with us is easy, private & backed by the power of science.

Long story short:
  1. In the test options, use the filters or search box to narrow your choices and find the test you want.
  2. If you need a hand navigating through options, text our super friendly support team at 754-799-7833, and we'll provide tailored suggestions to help you find the ideal test.
  3. Once your order is placed, we’ll create your doctor’s lab order remotely, without any need for you to make a trip to a doctor in person or to talk to the doctor. Expect to receive your doctor’s lab order right in your inbox. It will also be in your patient portal if you need to find it later. We’ll also include instructions regarding fasting and other requirements for your test. Your patient portal will be auto-created hassle-free during checkout.
  4. If this is your first time ordering, you'll be prompted to create a password for instant login access to your patient portal. It's a quick way to conveniently access your orders and results whenever you want.
  5. When you’re ready, visit one of our 4,000 locations. Just bring your ID – no printing or faxing of your lab order is needed, as your order and details will already be in the lab system.
  6. Note that most lab locations don’t accept walk-ins, so it’s best to book an appointment in advance. Don’t worry – we’ll provide detailed instructions along the way.
  7. You’ll get your results via email & SMS and dive into understanding your body better. Yup, that easy!
  8. If you have any questions, please text us at 754-799-7833 or email support@privatemdlabs.com and we'll gladly help you.
How do I know which test to get?
In the test options, find the test you want. If you’re not sure which test to get, we can lend a hand in finding the right option.

Just text or call us at 754-799-7833, email us at support@privatemdlabs.com, and we'll gladly help you. We've got your back and reply quickly.
Is it possible to make changes to my lab order if I made a mistake with the name, date of birth, or any other details?
Absolutely! We totally understand that errors can happen. No worries, we're here to help you.

Just reach out to us via text at 754-799-7833 or shoot us an email at support@privatemdlabs.com. Remember to include your order number and let us know the correct information you’d like to update. Our awesome team will jump right in and make sure everything is sorted out and accurate for you.

There are no changes necessary if your address is wrong on the requisition though. We don’t mail anything out.

Our lab requires an address to be listed to generate an order.
Do you accept health insurance?
Only HSA & FSA is accepted.

Our services are strictly self-pay and cannot be submitted to your health insurance provider except for Health Savings Accounts or Flexible Savings Accounts.

This policy applies to all insurance companies, including federal health insurance programs like Medicare.

If you have any questions, please text us at 754-799-7833 or email support@privatemdlabs.com.
Can I cancel my order?
Yes.

We get it – sometimes your needs change.

As long as your samples haven’t been collected yet, we’re happy to help you cancel your order.

If you have any further questions, please text us at 754-799-7833 or email support@privatemdlabs.com.

You can read more about our cancellation policy here.
How can I find a lab location near me?
During the ordering process, you’ll be able to select a specific lab near you, with no strings attached! You can switch it up later easily and visit any of our authorized locations as long as it’s the same lab company you selected your test for (Quest Diagnostics or Labcorp).

Before you proceed with your order, feel free to browse through all our lab locations here. This will give you the peace of mind of knowing that there's a lab nearby your home, office or your favorite gym.

If you have any questions, please text us at 754-799-7833 or email support@privatemdlabs.com and we'll gladly help you.
Here’s how easy it is to get blood work done on your terms
Choose a checkup
Order your test Save a trip to the doctor. Your results will come with clear, friendly explanations. Takes 2 minutes
Book a lab
Book an appointment Visit any of our 4,000 nearby lab locations to have your samples collected. Book or walk-in
Choose a checkup
Get results Receive a clear, easy-to-digest health report by email & SMS within a few business days. Get answers, fast

Here’s why 1,000,000+ customers chose us for affordable hassle-free private blood testing.

You get clinical lab reports & simplified health insights.
Save time & gas, go straight to the lab. Our doctors cover the rest.
Results start landing the next day after your lab visit.*
We don’t sell or share your data. Your time & privacy matter.
US-licensed doctors have your back if things get unclear.
No hidden fees, nice discounts for regular checkups.
Save a trip to the doctor, go directly to the lab
Instant orders, results often overnight*
Results explained in simple language
Reviewed by US licensed doctors
Fast & confidential, we never sell or share your data
No insurance needed, transparent pricing
Demo results
Testosterone 375 ng/dL
Demo results
Normal Optimal 400 - 1000 High
375 ng/dL

What this means

Your testosterone levels are slightly below the optimal range. While this is not necessarily cause for concern, it may contribute to occasional fatigue, reduced motivation, or lower muscle mass over time.

* Regular blood test results (e.g., CBC) typically start arriving the next business day after sample collection. More complex tests, such as hormone panels, may take up to 10–15 business days due to their complexity.

Us vs. Them

Not overhyped or overpriced. Just comprehensive blood testing made simple and for everyone.

* Regular blood test results (e.g., CBC) typically start arriving the next business day after sample collection. More complex tests, such as hormone panels, may take up to 10–15 business days due to their complexity.

1,000,000+ blood tests later, here's what our customers say

Google reviews 505 reviews Next
Prothrombin Time (PT) (INR) and Partial Thromboplastin Time (PTT)
What's included
Fast & easy, results by email & SMS
No need to visit a doctor
Private & confidential
No insurance needed
Results explained
No extra fees paid at the lab

Sample results

Sample image
For you & your coach Health insights Written in human language, backed by science.
Sample image
For you & your doc Classic lab report A familiar and comprehensive lab report.

Ask AI

Your 24/7 Lab Guide

Quick questions:

Which test is right for my symptoms?
What could be causing this?
When should I get tested?
A
Hi, I'm AI. I can help you find the right test, explain results, or prepare for your visit. What can I help with?
Just now
A
AI provides insights, not medical diagnoses.