Articles tagged with Medical Tests
A study found that diagnostic tests for malaria are often underused in Zambia, resulting in patients being prescribed antimalarial medications despite negative test results. The use of rapid antigen-detection diagnostic tests (RDTs) is proposed as a cost-effective approach to reduce overtreatment.
A recent study conducted by University of California - San Diego researchers found that using a Taser on healthy individuals does not cause lasting harm. The study monitored the physiological effects of a single Taser activation in human subjects and discovered no clinically significant or lasting changes.
Researchers at the University of Alberta have confirmed that chronic pain affects attention and memory in 67% of participants. Chronic pain can disrupt the maintenance of the memory trace required to hold information for processing.
A small study published in Heart reveals that low tar cigarettes, like regular ones, severely impair blood flow through the heart. The researchers found that both groups of smokers showed significant declines in coronary flow velocity reserve after smoking, regardless of cigarette type.
Researchers found that individuals with minimal motor problems at the beginning of the study were nearly five times more likely to be diagnosed with Huntington's disease a year and a half later. Those who performed worse on cognitive tests, such as psychomotor speed, were also at increased risk.
Researchers developed a rapid technique to detect Alicyclobacillus in juices, reducing testing time from 5-7 days to hours. The new method combines DNA sequencing and mid-infrared spectroscopy for accurate identification.
Researchers at Harvard University developed a test that assesses implicit attitudes towards self-injury, improving the prediction of self-injurious behavior. The study found that individuals with a history of non-suicidal self-injury were more likely to associate self with cutting in an implicit association test.
A simple blood test taken at hospital admission can predict in-hospital mortality risk for heart failure patients, says UCLA researcher. Higher BNP levels are associated with higher mortality rates and other clinical outcomes such as mechanical ventilation and longer hospital stays.
A study published in PLoS ONE has identified a protein in the brain, alpha-spectrin, as a target for antibodies in children with cerebral malaria. The discovery could lead to the development of a predictive test to improve patient care.
A case report in The Lancet highlights the dangers of continued cocaine abuse on the heart, leading to dilated cardiomyopathy. After treatment, the patient's condition improved significantly, showing promise for recovery with abstinence.
A study of Gulf War veterans with multiple health symptom complaints found significant differences in brain structures compared to those without high numbers of symptoms. The researchers discovered smaller brain volumes in areas involved in thinking and memory, which correlated with poorer performance on learning and memory tests.
A Penn State study found that eating pistachios reduced the body's response to stress in individuals with high cholesterol but normal blood pressure. The 3-ounce pistachio diet was most effective in reducing systolic blood pressure and improving vascular relaxation.
A study of nearly 600 people with hay fever symptoms found that workers missed an average of one hour of work per week during peak seasons. Diagnostic testing followed by proper treatment may help reduce missed work days.
Raven, a mobile surgical robot developed by the University of Washington, will operate in an underwater capsule off the coast of Florida, guided by surgeons in Seattle. The 12-day mission tests current technology for sending remote-controlled surgical robotic systems into space.
Researchers found that natalizumab significantly reduces vision loss and likelihood of sustained vision loss in patients with relapsing MS. The drug's potential benefits must be weighed against its risks, including progressive multifocal leukoencephalopathy.
The hospital has introduced more stringent admission screening methods for MRSA and VRE, detecting many more carriers before infection or spread. Weekly swab testing and bacterial growth cultures were effective in identifying patients with the germs, missing only 35% of those with MRSA.
Researchers report on patients who suffered toxic side effects from taking excessive doses of niacin, a common vitamin used to pass urine drug tests. The study warns against this practice due to the risks of liver toxicity, hypoglycemia, and other serious health issues.
A recent study by Drs. John Ioannidis and Thomas Trikalinos found that many meta-analyses employ asymmetry tests to detect publication bias, but these tests are often not statistically valid. As a result, the findings of these meta-analyses may be misleading or incorrect.
Researchers at the University of Rochester have created a laser-based technique that measures multiple chemicals in body fluids in under 60 seconds, offering non-destructive and fast testing capabilities. The technique uses Raman spectroscopy and low-refractive-index tubes to improve signal strength and accuracy.
Researchers at Mount Sinai Hospital in Toronto have developed a non-invasive screening test to detect placental damage in high-risk pregnancies. The test, which combines ultrasound and blood tests, can identify abnormal placental function at 16-23 weeks gestation, allowing for early intervention and improved pregnancy outcomes.
A new diagnostic test, dubbed the 'dipstick,' can rapidly detect chemicals formed by disease-causing bacteria in food products, with a 90% accuracy rate. The test could help avoid illnesses and deaths caused by food poisoning, which affects millions annually.
A new gene mutation has been identified as the cause of X-linked mental retardation, a severe condition affecting male offspring. The researchers discovered the ZDHHC9 gene, which is mutated and loses its function, leading to the condition.
Researchers have identified a vital protein, PAWP, essential to human reproduction and fertilization. The study suggests that regulating this protein may increase the chances of pregnancy by enhancing fertility.
NIST has created a new Standard Reference Material (SRM) to help diagnose chronic kidney disease more accurately. The SRM consists of frozen human blood serum with two different concentrations of creatinine, which is a metabolic by-product of muscles.
Two new interferon-gamma blood test assays detected latent tuberculosis infection in supermarket customers who had been exposed to a contagious employee, but traditional tuberculin skin tests did not. The blood tests showed a better correlation with exposure than TSTs.
Researchers developed a new ultrasound-based test that can accurately predict ovarian response and IVF success. The antral follicle count was found to be an effective predictor of egg production, providing a less costly and invasive alternative to current hormone-based tests.
A new study provides four quick and easy-to-administer tests to assess a child's early processing skills, which underpin language development. These tests have been shown to be reliable and can help identify potential language disorders in pre-schoolers, enabling earlier and more targeted intervention.
Researchers at NIST found that multiple robots' radio transmissions can interfere with each other, degrading search and rescue performance. The study identified ways to improve urban search and rescue wireless communications, including changes in frequency coordination and transmission protocols.
A review of medical literature reveals that direct communication between hospital physicians and primary care physicians at discharge is infrequent. Discharge summaries often lack important information, contributing to primary care physician dissatisfaction and impacting quality of care. Urgent improvements are needed in the processes ...
A RAND Corporation study found that neighborhoods with more four-way intersections and diverse businesses encourage walking. However, the impact of these factors on walking is not particularly strong, especially when housing density is low. The study suggests that urban design recommendations can help create walkable communities.
Exercise testing can diagnose chronic conditions and measure treatment responses, according to a new task force report. The findings suggest that clinical exercise testing can be a powerful tool for clinicians to evaluate interventions and improve patient outcomes.
Adding CRP testing to routine assessments would increase Americans eligible for treatment by 2-25 million, mostly low-risk individuals. The medical community should focus on treating high-risk patients before expanding to low-risk populations.
A study of 118 pilots aged 40-69 found that experts demonstrated improved performance over time, outperforming younger pilots in traffic avoidance and scanning cockpit instruments. Pilots with advanced FAA ratings showed the least decline in skills, suggesting a 'crystallized intelligence' mechanism.
The Stanford University School of Medicine conducted a six-month study on the effects of garlic on cholesterol levels. Despite decades of conflicting studies, the researchers found that consuming raw garlic or two popular supplements did not lower LDL cholesterol levels among adults with moderately high cholesterol levels.
A breath test using a color sensor can detect lung cancer with moderate accuracy in early stages, showing promise for non-invasive screening. The test detects changes in volatile organic compounds produced by lung cancer cells.
The American College of Physicians recommends periodic health evaluations to improve patient outcomes and reduce healthcare costs. A new study found that immunochemical FOBT is an effective tool for detecting colorectal cancer, with high sensitivity and specificity rates.
A study published in the Annals of Internal Medicine found that a primer, developed by researchers at Dartmouth Medical School, improved medical interpretation skills among participants with varying levels of education. The primer, 'Know Your Chances: Understanding Health Risks,' was effective in both low and high socioeconomic groups,...
Data collected from voluntary HIV counselling and testing clinics in Africa are biased and unreliable, making them unsuitable for HIV surveillance. A better approach would be to use community-based surveys like Demographic and Health Surveys that inquire about testing history and sexual behavior.
A study found significant disparities in colon cancer screening practices by ethnicity, sex, age, education and income level among Medicare patients. Approximately 18.3% of the sample population had been screened for colon cancer during the study period.
A study by Queen Mary College researchers found nearly 40% of doctors in one Russian city had latent TB infection, with rates higher among those working in TB clinics. The study highlights the need for regular occupational health screening to control TB spread and address drug resistance issues.
Pregnant women over 40 years old are at higher risk of stillbirth due to various pregnancy complications. Fetal testing at 38 weeks gestation is most effective in reducing stillbirth rates among older women.
Researchers at the University of Rochester found that playing action video games for 30 hours per week improved spatial resolution and visual acuity. The study showed significant improvements in identifying letters presented in clutter, even beyond the part of the visual field where players typically engage with the game.
Scientists have identified a severe form of benign prostatic hyperplasia (BPH) tied to a gene called JM-27. A blood test detects high levels of this protein, indicating more severe symptoms. This discovery could lead to earlier diagnosis and targeted treatment for bladder-related complications.
A new study has discovered a way to identify cells that will cause graft-versus-host disease (GVHD) in blood cancer patients. This breakthrough allows for more reliable testing of donor T cells and personalized medicine approaches, potentially saving thousands of lives.
Researchers at Harvard University developed a new class of rapid tests that can carry out several biological tests simultaneously on a single drop using patterned paper. The tests are highly practical, inexpensive, and unaffected by contamination.
A study found that three-fourths of cardiovascular clinical trials published in leading medical journals did not provide sex-based analysis, highlighting the lack of data on women's heart health. Researchers urge more women to be included in trials and for journal editors to require sex-specific reporting.
A team of University of Michigan and Harvard researchers suggests abandoning the one-size-fits-all approach to health insurance by tailoring plans to individuals' specific medical needs. This value-based insurance design (VBID) approach aims to encourage patients to use evidence-based treatments, reducing healthcare costs in the long run.
A study of 4,124 older women found that repeat bone mineral density scans offered little predictive benefit for fractures. Initial BMD measurements remained highly predictive of fracture risk, suggesting that such tests are unnecessary for healthy older women.
Researchers at University at Buffalo are testing a nasal spray anesthetic and ozone delivery device to eliminate drilling and injections in dental procedures. The studies aim to improve patient comfort and reduce pain associated with dental care.
Scientists have developed a method to rapidly separate blood plasma without moving parts, leveraging the phenomenon of tea leaves accumulating at the center of a stirred teacup. This technique could significantly speed up medical tests, such as cholesterol level checks and glucose testing for diabetics.
A study published in the European Heart Journal found that adding milk to black tea completely negates its ability to relax and expand blood vessels. The researchers suggest that tea drinkers consider omitting milk from their beverage some of the time.
A new study found that a large number of patients who receive implantable cardioverter defibrillators (ICDs) do not benefit from the device, while a simple heart-rhythm test can predict which patients will get life-saving benefit. The study suggests that using this test could spare millions of dollars in costs.
Researchers found that high-normal uric acid levels are linked to lower scores in tests of mental processing speed, verbal memory, and working memory. Older adults with high-normal uric acid levels may experience slow information processing and failures in verbal and working memory.
Researchers developed genomic tests to predict breast cancer response to chemotherapy and hormonal therapy, with promising results in clinical trials. The tests showed high accuracy in predicting treatment response and patient outcomes, offering new hope for personalized treatment planning.
Research reveals that almost 16% of all drivers stopped and tested under suspicion of driving under the influence would test positive for drugs. Drivers who were under the legal limit for alcohol but still tested positive for drugs were more likely to be taking a cocktail of substances.
A new study reveals that a balance training program focusing on increasing step length and speed is more effective at improving mobility and balance than tai chi. The program resulted in greater improvements in measures such as the timed up and go test and maximal step length test.
A new study reveals that a specific set of symptoms and their frequency/duration can distinguish early ovarian cancer from other causes, making it a potential rapid and cost-effective screening tool. The symptom index was found to be 57% sensitive for early disease and 80% sensitive for advanced cancer.
Researchers at University of California - San Diego have developed fiber-reinforced polymer composites that quadruple the toughness of dental composites. Braided polyethylene fibers performed best, increasing toughness by up to 433% compared to the composite alone.
A multicenter study found that finasteride artificially lowers PSA levels in younger men taking it for hair growth, impacting diagnosis accuracy. The study calls for new clinical guidelines to account for this effect when evaluating PSA results.
Women's long-term weight training programs increase biologically active growth hormone, a key factor in muscle development and bone strength. The study found that heavy loading cycles or workouts with moderate to heavy intensity regimens stimulate growth hormone production.