Tween and teen health
Learning Center
Liver function tests
Liver function tests can help determine how well your liver is doing its job. Find out what to expect and what results are considered standard.
Lumbar puncture (spinal tap)
Learn about lumbar puncture, which removes a sample of cerebrospinal fluid to find infections, bleeding and other conditions. It also is called a spinal tap.
Lumpectomy
Learn what to expect from this breast-conserving surgical procedure.
Mastectomy
Learn about this operation to remove the breast tissue from one or both breasts. Find out about risks, results and what you can expect.
Oral cancer screening
Learn about the benefits and limitations of tests to detect mouth cancer.
Polysomnography (sleep study)
Your health care provider may order this test if a sleep disorder such as sleep apnea is suspected. Learn how to prepare and what to expect.
Rh factor blood test
What's an Rh factor blood test? Understand this important test that's done during pregnancy.
Robotic surgery
Robotic systems can help surgeons increase precision, flexibility and control for many procedures. Learn about the advantages and availability of robot-assisted surgery.
Tattoo removal
Find out about tattoo removal options, including laser surgery, surgical removal and dermabrasion.
Tilt table test
Learn how this test may help you find the cause of unexplained episodes of fainting.
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