Medical Tests & Procedures Archive

A 2022 study led to questions regarding whether colonoscopy is the best strategy to reduce the risk of death from colon cancer. But overwhelming evidence supports the procedure for lowering the risk of colon cancer and related death, and experts continue to recommend people at average risk get at least one colonoscopy beginning at age 45.

About 20% of people have high blood levels of lipoprotein(a)—Lp(a) for short—a fatty particle that's like the evil twin of the more familiar LDL ("bad") cholesterol. Elevated Lp(a) which can double or triple risk of a heart attack and raise stroke risk, and is linked to problems with the heart's aortic valve. With new treatments that can lower Lp(a) on the horizon, cardiologists are now testing more people for this biomarker, which is not included in standard cholesterol tests.

While ovarian cancer is not always inherited, family history is the top risk factor for the disease, which is diagnosed in 20,000 American women and kills 13,000 annually. Symptoms, such as bloating, pelvic pain, bowel or bladder habit changes, and unusual vaginal discharge or bleeding, are often vague and subtle until the disease is advanced, making it hard to detect and cure. No standard screening test is available for ovarian cancer. Women with symptoms can ask for a pelvic ultrasound. Women with a family history should seek genetic counseling and testing.

Renal denervation is a minimally invasive procedure that destroys some of the nerves inside the renal arteries, which supply the kidneys. The procedure lowers blood pressure by disrupting communication between the brain and the kidneys that leads to elevated blood pressure. People with stubbornly high blood pressure may be candidates for the procedure, which is currently approved for use in Europe but not in the United States.

Costochondritis, which is caused by inflammation of the cartilage between the ribs and the breastbone, causes chest pain that's often mistaken for a heart problem.

A heart murmur is the sound of turbulent blood flow within the heart as heard through a stethoscope. In adults, most abnormal murmurs are caused by an aortic or mitral valve that's not working correctly.

Nearly half of U.S. adults have high blood pressure; however, only one-third of those who have the problem are aware of it. This is mostly because people only have blood pressure checked at doctor visits, so they don't know when it increases and requires medical attention. A simple solution is to take regular measurements with a home blood pressure monitor and keep track of their numbers to note changes.

Prices for six common heart tests and procedures at top-ranked U.S. hospitals showed surprisingly wide variations, according to a 2022 Harvard study. There was a 10-fold difference in the median prices patients pay for a heart ultrasound, and even larger disparities for procedures such as implanting a pacemaker. The differences may reflect power dynamics between hospitals and insurance companies. For both entities, factors such as location, size, and popularity influence that dynamic — which, in turn, affects the market dynamics that dictate costs.

Catheter ablation destroys spots in the heart responsible for atrial fibrillation. Although traditionally used as a second-line treatment after medications fail, undergoing ablation earlier in the course of the disease may be a good option. The overall success rate for catheter ablation is around 75%. People sometimes undergo a second procedure if the first one isn't effective; this boosts the success rate to nearly 90%. Many factors, such as age, other health problems, and duration of afib can affect a person's outcome after catheter ablation.

For many people, non-HDL cholesterol (which is total cholesterol minus HDL cholesterol) may be as good as (or even more reliable than) LDL for assessing a person's risk of heart problems.