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This test looks for the bacteria that cause chlamydia, the most common sexually transmitted infection in the U.S.

This test looks for the bacteria that cause gonorrhea, a sexually transmitted disease.

This test looks for DNA of gonorrhea bacteria in a sample of bodily fluid. It can distinguish between an infection caused by gonorrhea and one caused by chlamydia.

This test looks at your urine to find out whether you are infected with gonorrhea, a common sexually transmitted infection.

A blood transfusion puts donated blood into the body. During a blood transfusion, you receive donated blood through one of your blood vessels. Read on to learn details about this procedure.

CT angiography is a type of medical test that combines a CT scan with an injection of a special dye to produce pictures of blood vessels and tissues in a part of your body.

After knee replacement, your healthcare team will help you learn how to sit up, stand, and use the bathroom safely.

Some procedures may be done using arthroscopy, a method that uses tiny incisions and special instruments to look and work inside the knee joint. Other procedures need open surgery. The kneecap can be realigned to improve its tracking. To do this, soft tissue may be cut, tightened, or moved.

Surgery may be used when pain severely limits your activities. Or it may be done when a rehab program or other nonsurgical treatments just are not helping enough. Some procedures may be done using arthroscopy. This method uses tiny incisions and special instruments to look and work inside the knee joint. Other procedures need open surgery.