Medical Tests & Procedures Archive

The technology is promising, but scientists are calling for controls on how the method is used.

Unless you have symptoms of a heart problem, taking a cautionary look under the hood is unlikely to help—and could even be harmful.

Q. I heard that there is a new stool test for colon cancer screening. Can this test replace colonoscopy for me? I am 68 years old with no history of colon problems, and my last colonoscopy was normal.

A. Among screening tests for hidden colorectal cancer, colonoscopy remains the "gold standard" because it's the most effective technique for detecting colon cancers and simultaneously provides an opportunity to remove any precancerous growths (polyps). The new DNA-based stool test (Cologuard) is less invasive and inconvenient than colonoscopy and finds more cancers and polyps than older stool tests, but it does not entirely eliminate the need for colonoscopies.

Emergency rooms, urgent care clinics, and retail clinics offer immediate care. Your symptoms determine which to use.

You've probably had an illness or injury that you weren't quite sure how to handle. Maybe it was a rattling cough, a finger slammed in a car door, or a rash crawling up your arm. If you can't get in to see your doctor, you have a few options for immediate treatment—the clinic at the nearby shopping mall, an urgent care center, or the emergency room at the nearest hospital. How do you decide which one to go to?

A mini mental status exam or a thorough cognitive assessment can give you answers and may improve your qualify of life.

Women are at greater risk for dementia. Joining clinical trials can help to speed the development of promising drugs.

Family history or past smoking both point to higher risk for this potentially fatal condition.

How many "lifesaving" medical tests have you been offered lately? One frequently marketed to older men is an ultrasound of the abdominal aorta, the large artery below the heart that feeds the lower body. A bulging weak spot there—an abdominal aortic aneurysm (AAA)—could eventually rupture, and that is usually fatal.

Many procedures require anesthesia, and which of the four types you have can affect your recovery.

If you've ever had a tooth filled without Novocaine, you know the difference anesthesia can make. Anesthesia—whether it numbs your mouth or puts you into a full sleep—is designed to keep you comfortable during a procedure that otherwise might be hard to tolerate physically, emotionally, or both. "We have four goals: to see that you have no pain, that you're drowsy or unconscious, that your body is still so that the surgeon can work on it, and that you aren't left with bad memories of the procedure," says Dr. Kristin Schreiber, an anesthesiologist at Harvard-affiliated Brigham and Women's Hospital.

There are four basic kinds of anesthesia—local, which is typically administered to numb a small area; regional, which numbs a larger area, like your hand, arm, or foot; neuraxial (spinal or epidural), which is injected near the spine and numbs the lower half of your body; and general, which works in the brain to render you completely unconscious and unable to sense pain. The type used depends upon the procedure you're having, your state of health, and, often, your preferences.

Known as hybrid coronary revascularization, this technique may become more widely available in the future.

Q. Why is my doctor checking me for tuberculosis? I thought that was eradicated long ago

A. It would be wonderful if tuberculosis (TB) had been eradicated long ago, but unfortunately that's not the case. It is true that the annual number of new cases in the United States has been dropping over the past 20 years; in 2013, there were about 9,500 new cases. However, around the world, particularly in developing nations, TB remains a huge problem. In 2013, there were nine million new cases of TB, and 1.5 million deaths from TB, in the world.