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Pacific · Prothrombin Time (PT) with INR & PTT

Prothrombin Time (PT) with INR & PTT in California

Prothrombin Time (PT) with INR & PTT is a laboratory test you can request directly. This test measures how long it takes your blood to clot and helps assess your risk of bleeding or clotting.

Typical turnaround1-3 business days
Price range$49
PreparationFollow the lab's instructions.
Sample typeBlood draw at a collection lab
ReferralNo referral required

What this test is

Prothrombin Time (PT) with International Normalized Ratio (INR) and Partial Thromboplastin Time (PTT) are blood tests that evaluate the body's ability to form clots. They assess different parts of the coagulation cascade, a series of protein interactions that lead to blood clotting.

What it measures

  • Prothrombin Time (PT) — reflects the time it takes for blood to clot
  • International Normalized Ratio (INR) — standardizes PT results for comparison across different labs
  • Partial Thromboplastin Time (PTT) — measures how long it takes for blood to clot using a different pathway

What the test involves

A healthcare professional will collect a blood sample by inserting a needle into a vein, typically in your arm. The collected blood is then sent to a laboratory for analysis.

Why it is often ordered

Clinicians often order this test to monitor individuals taking anticoagulant medications, such as warfarin. It may also be used to investigate unexplained bleeding or clotting disorders.

Preparation

Follow any specific instructions provided by the laboratory where you will have your blood drawn. Some medications may need to be temporarily stopped before the test.

How results are reported

Results are typically reported within a few business days. Your results will include reference ranges, which are the expected values for healthy individuals, but these ranges can vary between laboratories.

Before you go

  • Confirm fasting requirements with the lab.
  • Verify if any of your current medications need to be stopped.
  • Ask about the expected turnaround time for results.

Cities

Prothrombin Time (PT) with INR & PTT in California communities

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

Los Angeles12,121,244Prothrombin Time (PT) with INR & PTTSan Francisco3,290,197Prothrombin Time (PT) with INR & PTTSan Diego3,084,174Prothrombin Time (PT) with INR & PTTRiverside2,022,285Prothrombin Time (PT) with INR & PTTSacramento1,924,167Prothrombin Time (PT) with INR & PTTSan Jose1,729,879Prothrombin Time (PT) with INR & PTTFresno719,558Prothrombin Time (PT) with INR & PTTConcord640,270Prothrombin Time (PT) with INR & PTTBakersfield590,845Prothrombin Time (PT) with INR & PTTMission Viejo588,540Prothrombin Time (PT) with INR & PTTMurrieta509,526Prothrombin Time (PT) with INR & PTTLong Beach466,565Prothrombin Time (PT) with INR & PTTOakland437,548Prothrombin Time (PT) with INR & PTTStockton406,822Prothrombin Time (PT) with INR & PTTVictorville389,060Prothrombin Time (PT) with INR & PTTModesto382,994Prothrombin Time (PT) with INR & PTTLancaster381,732Prothrombin Time (PT) with INR & PTTOxnard366,330Prothrombin Time (PT) with INR & PTTIndio361,831Prothrombin Time (PT) with INR & PTTAnaheim348,204Prothrombin Time (PT) with INR & PTTAntioch322,796Prothrombin Time (PT) with INR & PTTSanta Rosa314,196Prothrombin Time (PT) with INR & PTTSanta Ana313,818Prothrombin Time (PT) with INR & PTTIrvine297,868Prothrombin Time (PT) with INR & PTTSanta Clarita275,230Prothrombin Time (PT) with INR & PTTChula Vista274,818Prothrombin Time (PT) with INR & PTTVisalia249,804Prothrombin Time (PT) with INR & PTTFremont231,502Prothrombin Time (PT) with INR & PTTSan Bernardino220,821Prothrombin Time (PT) with INR & PTTThousand Oaks211,045Prothrombin Time (PT) with INR & PTTMoreno Valley208,371Prothrombin Time (PT) with INR & PTTFontana208,087Prothrombin Time (PT) with INR & PTTSalinas199,290Prothrombin Time (PT) with INR & PTTHuntington Beach198,735Prothrombin Time (PT) with INR & PTTSanta Barbara198,240Prothrombin Time (PT) with INR & PTTGlendale196,512Prothrombin Time (PT) with INR & PTTHemet191,170Prothrombin Time (PT) with INR & PTTVallejo181,882Prothrombin Time (PT) with INR & PTTElk Grove175,510Prothrombin Time (PT) with INR & PTTOntario175,223Prothrombin Time (PT) with INR & PTTOceanside174,461Prothrombin Time (PT) with INR & PTTRancho Cucamonga173,946Prothrombin Time (PT) with INR & PTTGarden Grove172,708Prothrombin Time (PT) with INR & PTTPalmdale167,987Prothrombin Time (PT) with INR & PTTSanta Cruz165,933Prothrombin Time (PT) with INR & PTTHayward162,254Prothrombin Time (PT) with INR & PTTCorona157,844Prothrombin Time (PT) with INR & PTTMerced157,617Prothrombin Time (PT) with INR & PTTSunnyvale155,550Prothrombin Time (PT) with INR & PTTPomona151,592Prothrombin Time (PT) with INR & PTTEscondido151,443Prothrombin Time (PT) with INR & PTTTorrance147,156Prothrombin Time (PT) with INR & PTTRoseville145,687Prothrombin Time (PT) with INR & PTTFairfield145,163Prothrombin Time (PT) with INR & PTTFullerton142,964Prothrombin Time (PT) with INR & PTTSanta Maria142,230Prothrombin Time (PT) with INR & PTTOrange139,195Prothrombin Time (PT) with INR & PTTPasadena138,771Prothrombin Time (PT) with INR & PTTYuba City129,536Prothrombin Time (PT) with INR & PTTSanta Clara127,922Prothrombin Time (PT) with INR & PTT