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1. www.webmd.com › eye-health › nearsightedness-myopiaMyopia (Nearsightedness): Causes, Treatment, and Symptoms - WebMD

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   Myopia Causes. The structure of your eye is to blame. When your eyeball is too long or the cornea -- the protective outer layer of your eye -- is too curved, the light that enters your eye won’t...

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

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   2023年5月28日 · 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 a PT Test?...

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   What is a PTT test?

   • A PTT test looks at one set of these factors to see how well they’re working. It’s often done along with another test, called the prothrombin time (PT) test, which looks at another set of clotting factors. Together, they give your doctor a more complete picture of what happens in your body when a clot forms.

   Activated Partial Thromboplastin Time (APTT) Test & APTT Levels - Web…

   www.webmd.com/a-to-z-guides/partial-thromboplastin-time-test

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   What does a high PT test mean?

   • A typical PT result is 10 to 14 seconds. Higher than that means your blood is taking longer than normal to clot and may be a sign of many conditions, including: If you have a lower number, your blood clots faster than normal. This could be from taking supplements or eating foods high in vitamin K. Will I Get Any Other Tests?

   Prothrombin Time (PT/INR) Blood Test for Clotting Time - WebMD

   www.webmd.com/a-to-z-guides/prothrombin-time-test

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   How long does a PTT test take?

   • Usually, you get the results within a few hours or a day, but it depends on your lab. A typical value for a PTT is 60 to 70 seconds. There’s also an activated PTT (aPTT) test that measures the same thing, but they add a substance to your blood to make it clot faster. A typical aPTT value is 30 to 40 seconds.

   Activated Partial Thromboplastin Time (APTT) Test & APTT Levels - Web…

   www.webmd.com/a-to-z-guides/partial-thromboplastin-time-test

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

   www.webmd.com › a-to-z-guides › partial-thromboplastin-time

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   2023年5月22日 · What Is a Partial Thromboplastin Time Test? Medically Reviewed by Carol DerSarkissian, MD on May 22, 2023. Written by WebMD Editorial Contributors. What Does a PTT Test Look For? Why Would I...

5. www.webmd.com › pain-management › what-to-know-aboutUltrasound Physical Therapy: Procedure, Benefits, and Risks

   www.webmd.com › pain-management › what-to-know-about

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   2023年7月7日 · Ultrasound — or ultrasonography — is an imaging technique used not just during pregnancy but also for many medical procedures. Ultrasound physical therapy is a branch of ultrasound, alongside...

6. www.webmd.com › dvt › dvt-surgery-and-proceduresSurgery and Procedures for Deep Vein Thrombosis (DVT) - WebMD

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   2023年3月16日 · Surgery and Procedures for DVT. Medically Reviewed by Carol DerSarkissian, MD on March 16, 2023. Written by Jon McKenna. Thrombectomy. Catheter-Directed Thrombolysis. IVC Filter Placement. 5 min...

7. www.webmd.com › a-to-z-guides › what-is-an-ent-ear-nose-throatWhat is an ENT? What They Do and Why to See One - WebMD

   www.webmd.com › a-to-z-guides › what-is-an-ent-ear-nose-throat

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   2023年8月17日 · What Does an ENT Do? ENTs deal with anything that has to do with the head, neck, and ears in adults and children, including: Hearing. Adenoids and tonsils. Thyroid. Sinuses. Larynx. Mouth. Throat....

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

   www.webmd.com › a-to-z-guides › parathyroid-hormone

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   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...