Recent Articles
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Medical Tests & Procedures Archive
Articles
Could imaging scans replace biopsies during prostate cancer screening?
Abnormal results on a prostate-specific antigen (PSA) screening test for cancer are typically followed by a systematic biopsy. But systematic biopsies can be problematic, and researchers are seeking alternatives. A large European study provides encouraging evidence favoring a different approach that uses MRI instead of biopsy.
Keeping score of prostate cancer
Men with high prostate-specific antigen (PSA) levels often get a biopsy of prostate tissue to check for cancer. The results of the biopsy are calculated to create a Gleason score, which helps doctors assess whether the cancer is low-, medium-, or high-risk. Based on that information, doctors may recommend that a man follow active surveillance (in which he monitors his PSA for changes) or begin cancer treatment.
New guidelines released for vitamin D testing and supplementation
Updated guidelines say adults don't need routine testing of vitamin D levels. However, they should aim for daily vitamin D intake of 600 international units (IU) until age 70, and 800 IU after that either through vitamin D–fortified foods or a supplement of up to 1,000 IU.
FDA approves blood test for colorectal cancer screening
In 2024, the FDA approved a blood test called Shield as a screening method for colorectal cancer. The test detects 83% of colorectal cancers, but only 13% of precancerous polyps. The FDA approval means that now many insurance plans will pay for the test.
Is a reliable blood test for Alzheimer's disease finally here?
A study published in JAMA in July 2024 found that a blood test was accurate in diagnosing Alzheimer's disease, which causes steep declines in cognition and other aspects of health. The blood test is able to detect elevated blood levels of brain proteins that characterize the condition. While that's progress, doctors say it's not the test needed most. It would be more beneficial, they say, to have a test that accurately spots the developing disease long before it affects thinking. No such tests are here yet, but scientists are working to develop them.
Upcoming surgery? You may not need any heart tests beforehand
Getting an electrocardiogram (ECG) prior to undergoing noncardiac surgery should be the exception rather than the rule. About half of surgeries are low-risk and pose very little danger for the heart. Asking about a person's symptoms during physical activity—for example, whether they can walk up a flight of stairs without feeling winded—is a better gauge of their risk than the findings from an ECG. But presurgical ECGs make sense for older, inactive people with heart disease. The results can reveal signs of reduced blood flow to the heart or an unstable electrical heart rhythm that may require treatment before surgery.
Should I worry about abnormal Pap test results?
Abnormal Pap test results don't always indicate cervical cancer. Most abnormal findings result from the presence of human papillomavirus, or HPV. Typically, the next step is a colposcopy, a test that enables the doctor to look closely at areas that appear abnormal.
Should you try a do-it-yourself hearing test?
Online hearing tests help detect if someone has hearing loss. The tests involve answering questions or listening to a series of tones or spoken words. The tests are not as comprehensive as tests conducted by an audiologist, but they are convenient and might help identify mild, moderate, or severe hearing loss; problems hearing particular pitch ranges; or differences in hearing ability in one ear compared to the other (asymmetry). A test might need to be followed up with a visit to an audiologist.
Recent Articles
Gratitude enhances health, brings happiness — and may even lengthen lives
Skin care for aging skin: Minimizing age spots, wrinkles, and undereye bags
Medicare versus Medicaid: Key differences
Prostate cancer: Short-course radiation as effective as longer-term treatments
Lost a tooth? What to know about dental implants
Hyperbaric oxygen therapy: Evidence-based uses and unproven claims
Gatorade. Liquid IV. Do you need extra electrolytes?
Sexual violence can cast a long shadow on health
Eggs, protein, and cholesterol: How to make eggs part of a heart-healthy diet
Can a quick snooze help with energy and focus? The science behind power naps
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