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  1. www.webmd.com › a-to-z-guides › partial-thromboplastin-timeActivated Partial Thromboplastin Time (APTT) Test & APTT ...

    2023年5月22日 · A typical aPTT value is 30 to 40 seconds. If you get the test because you’re taking heparin, you’d want your PTT results to be more like 120 to 140 seconds, and your aPTT to be 60 to 80 ...

  2. www.webmd.com › a-to-z-guides › prothrombin-timeProthrombin Time (PT/INR) Blood Test for Clotting Time - WebMD

    2023年5月28日 · Reference. What Is a Prothrombin Time Test? Medically Reviewed by Carol DerSarkissian, MD on May 28, 2023. Written by WebMD Editorial Contributors. What Does a PT Test Look For? When Would I Need...

  3. www.webmd.com › a-to-z-guides › potassium-blood-testPotassium Levels Blood Test: High vs. Low, Normal K Level - WebMD

    2024年2月25日 · This can lead to high blood pressure ( hypertension) and other issues. Potassium balances the effects of sodium and helps keep fluid levels within a certain range. Your body should maintain a ...

  4. www.webmd.com › dvt › unfractionated-vs-low-molecular-weightUnfractionated vs. Low-Molecular-Weight Heparin for DVT

    2022年4月29日 · DVT Guide. Unfractionated vs. Low-Molecular-Weight Heparin for DVT. Medically Reviewed by Melinda Ratini, MS, DO on April 29, 2022. Written by Bobbi Dempsey. How They Work for DVT. What’s the...

  5. www.webmd.com › a-to-z-guides › parathyroid-hormoneParathyroid Hormone (PTH) Test: High vs Low PTH Levels, ...

    2021年11月12日 · What Is a Parathyroid Hormone Blood Test? Medically Reviewed by Minesh Khatri, MD on November 12, 2021. Written by WebMD Editorial Contributors. Why Would Your Doctor Order It? Risks and...

  6. www.webmd.com › lung › types-of-lung-function-testsPulmonary Function Tests (PFTs) for Your Lungs - WebMD

    2022年8月14日 · Spirometry. This is one of the most common pulmonary function tests. Spirometry measures how much air you can breathe in and out. It also measures how fast you can empty the air out of your lungs ...

  7. www.webmd.com › a-to-z-guides › what-is-differential-blood-countDifferential Blood Count: Procedure and Results - WebMD

    2021年11月1日 · A differential blood count is a test that measures your white blood cell. Learn more about why it’s done, reference ranges, and more.