Articles

Find answers to your health-related questions in our health encyclopedia.

  • Test

    T-cell count

    Blood is drawn from a vein (venipuncture), usually from the inside of the elbow or the back of the hand. A needle is inserted into the vein, and the blood is collected in an air-tight vial or a syringe. Preparation may vary depending on the specific test.

    A T-cell count measures the number of T cells in the blood. Your doctor may order this test if you have signs of a weak immune system, such as due to having...

  • Test

    T3 test

    Triiodothyronine (T3) is a thyroid hormone. It plays an important role in the body’s control of metabolism (the many processes the body does to function). A...

  • Test

    T3RU test

    The T3RU test measures the level of proteins that carry thyroid hormone in the blood. This can help your health care provider interpret the results of T3 and...

  • Injury

    Tailbone trauma

    The tailbone (coccyx) is the small bone at the lower tip of the spine.  The most common cause of injury to the tailbone is a backward fall onto a hard surface, such as a slippery floor or ice.

    Tailbone trauma is an injury to the small bone at the lower tip of the spine.

  • Self-Care Instructions

    Tailbone trauma - aftercare

    Coccyx injury; Coccyx fracture

  • Disease

    Takayasu arteritis

    The interior of the heart is composed of valves, chambers, and associated vessels.

    Takayasu arteritis is an inflammation of the aorta and its major branches. The aorta is the artery that carries blood from the heart to the rest of the body.

  • Self-Care Instructions

    Taking antacids

    Antacids help to treat heartburn (indigestion). They work by changing the stomach acid that causes heartburn. You can buy many antacids without a...

  • Special Topic

    Taking care of your back at home

    Rest on a firm surface for several hours to treat and alleviate symptoms of a strained back.  Anti-inflammatory medications (such as ibuprofen) can help, and stretching and strengthening of the back muscles is important to avoid another back injury.

    A common myth about back pain is that you need to rest and avoid activity for a long time. In fact, doctors do not recommend bed rest. If you have no sign of...

  • Self-Care Instructions

    Taking care of your new hip joint

    After you have hip replacement surgery, you will need to be careful how you move your hip, especially for the first few months after surgery. In time, you...

  • Self-Care Instructions

    Taking care of your new knee joint

    After you have knee replacement surgery, you will need to be careful about how you move your knee, especially for the first few months after surgery. In...