Articles tagged with Medical Tests
A study published in Arthritis Care & Research found that muscle strength and functional performance were lower in the leg operated on compared to the other leg four years after meniscectomy. Patients reported symptoms and functional limitations, scoring lower in all areas compared to healthy control patients.
A study published in Neurology found that people with Parkinson disease were more likely to make safety mistakes during a driving test than those without neurological disorders. The study involved an on-road driving test of participants with mild to moderate Parkinson disease and those of similar age without neurological disorders.
Researchers at the University of Illinois developed a rapid diagnostic test for cocaine detection using tiny gold spheres and aptamers. The test strip, which can be used with just a sample dip, accurately identifies cocaine presence and has broad practical application potential.
A multi-center study with Stanford University found that regular exercise can improve a person's score on a standardized test of physical mobility, balance, walking speed, and ability to rise from a chair. The study showed that seniors who exercised regularly performed better on the fitness test than those who received health education.
A multicenter pilot study found that structured physical activity improved physical functioning in sedentary elderly individuals. Participants who exercised regularly showed significant improvements in walking distance and reduced risk of major mobility disability.
A new research tool developed by Susan Liebman may provide a means for treating the earliest stage of Alzheimer's disease. The yeast model system detects A-beta small aggregate formation, allowing for high-throughput screening of compounds to inhibit aggregation.
A survey of over 700 family doctors found that nearly two-thirds provide PSA tests on request, despite lack of evidence supporting its effectiveness. The study highlights the need for better training and targeted guidance to influence testing patterns and improve patient outcomes.
A study found that eating small amounts of dark chocolate daily can decrease the tendency of platelets to clot in narrow blood vessels, reducing heart attack risk. Researchers analyzed blood samples from 139 'chocolate offenders' who were excluded from a larger aspirin study and found them to be less reactive than those who abstained.
A study of nearly 600,000 men aged 70 and older reveals that 56 percent had a routine PSA screening, despite lack of recommendation. Health status had little impact on whether a test was performed, with even those in poor health receiving the test.
Researchers at the University of Illinois have developed a simple 'dipstick' test for detecting cocaine and other drugs using DNA-gold nanoparticle technology. The test is highly sensitive and selective, allowing for quick screening of individuals for various substances.
Studies found that colorectal cancer screening rates are increasing among Veterans Affairs patients, while younger veterans with other illnesses may not benefit from screening and may even be harmed. Screening methods include fecal occult blood testing and colonoscopy.
Testing preterm children's eyes at 2.5 years of age may help identify those who will develop vision problems by age 10. The study found that refractive errors, including astigmatism and anisometropia, were more common in preterm children than full-term children.
Researchers developed an immunological purification method to detect synacthen in low concentrations, providing a gap-closing solution for drug testing authorities. This new test confirms the presence of the protein and produces a unique chemical fingerprint.
Up to two-thirds of women experience incontinence, which can interfere with daily activities and lead to physical health problems. Most cases can be diagnosed through office evaluation without further tests or referrals, offering relief to up to 90% of patients.
Researchers at the University of Rochester Medical Center have developed a potential new treatment for stroke using Activated Protein C, which has shown promise in reducing brain damage by 70 percent. The treatment aims to temper the side effects of current medication TPA and expand its 'window' beyond three hours.
A Stanford University School of Medicine study found that napping improved mood, alertness and performance in doctors and nurses who worked night shifts. The study's results showed that a short nap break reduced fatigue, sleepiness and performance lapses.
Researchers developed a simple, noninvasive test to measure right ventricular function and predict survival of adults with pulmonary hypertension. The test, TAPSE, assesses echocardiographic abnormalities in the tricuspid valve and showed that patients with advanced right ventricular dysfunction had dramatically reduced survival rates.
A study analyzing hair samples from over 8,000 individuals found that babies can be exposed to crystal meth in the womb, with wide-ranging levels detected in both mothers' and newborns' hair. The findings suggest restricted fetal growth and developmental problems, highlighting the need for increased awareness and safety measures.
A team of researchers has developed a model that tests Pe-ter Richardson's long-held hypothesis about the formation of blood clots. The model, which uses high-speed computing, reproduces several odd features of thrombus growth observed in laboratory experiments and tissue pathologies.
The study found that virtual colonoscopy can detect polyps and cancers, but also reveals findings outside the colon that require additional testing, adding significant costs
Analyzing carbon and nitrogen in hair strands can determine whether a person has an eating disorder, providing an objective measure for diagnosis. The test required only five strands of hair to predict with 80% accuracy whether a person had anorexia or bulimia.
A study by human factors/ergonomics researchers found that virtual reality-based simulators can effectively train military medical personnel in high-stress conditions. The simulation tested the efficiency and quality of emergency chest tube thoracostomy procedures, revealing a correlation between faster completion times and poorer work...
Researchers at Cedars-Sinai Medical Center found that a nonabsorbable antibiotic can effectively treat irritable bowel syndrome (IBS) even after treatment ends. The study showed sustained benefits for participants who received rifaximin, providing new hope for those suffering from IBS.
Menzies School of Health Research has received $4.6 million in funding from the National Health and Medical Research Council to boost its research capability in Indigenous, remote, and tropical health. The funding will support six projects, including the Aboriginal Birth Cohort Study and scabies diagnosis development.
A pioneering study has found that people with lower or declining cognitive ability are at greater risk of falling. The research, which followed over 500 participants aged 70 over eight years, identified women and multiple fallers as being more likely to experience falls.
Researchers at The University of Manchester are developing new techniques using cultured human cells to identify carcinogens and reduce the need for animal testing. The project aims to increase confidence in pre-animal tests and minimize false positives.
Researchers have developed a new, simple, and rapid tuberculosis (TB) test called microscopic-observation drug-susceptibility (MODS). The test takes an average of seven days to complete and is more sensitive, faster, and cheaper than current culture-based tests.
Researchers at the University of Virginia are developing an office-based cancer screening test using biomarkers in urine to detect early signs of cancer. The goal is to improve detection and treatment outcomes, as current tests often rely on invasive procedures or delayed diagnoses.
A study of 2,223 healthy men and women found that those with high body mass index (BMI) scores performed worse on cognitive tests than those with low BMI scores. The study suggests a possible link between obesity and cognitive decline in middle-aged adults.
Researchers have made significant advances in optics tests for early Alzheimer's detection, which may enable universal screening technologies. The tests can identify small molecular signs of the disease in the eye before brain pathology is present, raising hopes for early diagnosis and slowing disease progression.
Government laboratories can quickly analyze radioactive samples but with variable accuracy and quality control procedures. The NIST tests found that measurement capability is generally accurate within 30% of the expected value.
A University of Alberta study found that walking alone is unlikely to produce marked health benefits compared to more intense exercise programs. Regular moderate activity and occasional vigorous periods are crucial for optimal health outcomes.
Physiologic Communications is developing an implantable biosensor that can detect physiologic and chemical changes with faster accuracy than current methods. This 'living chip' has the potential to revolutionize disease monitoring by providing real-time data to physicians and enabling timely interventions.
A new study found that IPF patients who can cover less than 680 feet during the six-minute walk test are four times more likely to die. The test's accuracy was found to be superior to other measures, such as forced vital capacity percent (FVC%).
Researchers have developed two new technologies to measure cell growth in the laboratory, one for monitoring drug effects on cancer cells and another for testing multiple cell types or dosages simultaneously. This breakthrough could lead to more accurate assessments of cancer treatments and improved drug development.
The Mayo Clinic has discovered an asthma diagnostic test that can accurately predict a patient's response to inhaled corticosteroids for chronic cough. The exhaled nitric oxide test measures inflammation in the lungs' bronchial tubes, showing promise as a more accurate and efficient alternative to methacholine challenge testing.
A study of 124 women found that hormone-replacement therapy with progestin resulted in a 10-30% increase in hearing loss compared to estrogen-only or non-HRT groups. Women on progestin showed signs of damage in both the inner ear and brain used for hearing.
Researchers developed a new, simple, and accurate dipstick test to identify the cause of bacterial meningitis outbreaks in Africa. The test uses patient spinal fluid and can determine the presence of four common meningococcus groups, paving the way for targeted treatment decisions.
Researchers found that nicotine withdrawal symptoms begin as early as 30 minutes after quitting, impacting smokers' cravings, mood, and behavior. This discovery challenges the common assumption that withdrawal symptoms occur later in the process.
Blood alcohol levels above legal limits increased significantly among emergency care patients, with a 113% rise in lab tests from 1999 to 2004. The number of intoxicated women doubled, while men consistently outnumbered women across all age groups.
A new kidney test, cystatin C, has been found to accurately predict higher risk of chronic kidney disease, cardiovascular disease, and death among elderly people. The study, published in Annals of Internal Medicine, suggests that a normal creatinine level should not reassure patients of normal kidney function.
A new study published in Vaccine found that a recombinant Protective Antigen (PA) protein vaccine produced the desired immune response in healthy adults, justifying further testing. The investigational vaccine demonstrated a clear relationship between the amount of vaccine administered and the subsequent immune response.
Researchers at Indiana University are working on a project to craft messages that encourage women to be tested for HIV and enroll in research clinical studies. The study aims to identify barriers to testing and develop persuasive messages to overcome them.
A four-year study found chronically high blood sugar associated with increased risk of mild cognitive impairment (MCI) or dementia. Women with elevated glycosylated hemoglobin were four times more likely to develop MCI or dementia than those with lower levels.
Researchers found great apes outperforming monkeys and lemurs in problem-solving tests across multiple paradigms. This suggests a broad, domain-general type of intelligence that allows them to succeed in various situations, contradicting the theory of specialized skills.
Researchers have adapted a psychiatric test for monitoring mental abnormalities in mice, revealing a key skill impaired in humans with autism and similar illnesses. The study found that mice can learn to switch attention between tasks, shedding light on the cognitive deficits underlying human mental dysfunction.
A new laboratory test can help determine whether patients with a history of venous blood clot are at low risk of developing another blood clot. Patients with low thrombin generation levels, measured by the commercially available test, have a low risk of recurrence, with an estimated 7% likelihood after 4 years.
Hopkins researchers have created a biosensor that allows them to see multiple, real-time chemical reactions in living cells. The sensor can locate where an enzyme is being turned on or off within the cell, providing valuable insights into how chemicals interact with enzymes.
The new non-invasive test allows for fetal sex determination at 5-7 weeks of gestation, sparking debates about the technology's implications. Experts warn that rapid policymaking is needed to address ethical concerns surrounding its use, particularly in cases where abortion is considered.
Researchers have developed a digital magnetofluidics method that enables precise analysis of biological fluids using nanoscale surface patterns. This technology holds promise for improving medical diagnoses, environmental safety, and public security by reducing testing time and costs.
A cross-sectional study of 1,268 adults in Botswana found that routine HIV testing is widely accepted and may reduce barriers to testing. The authors emphasize the importance of informed consent and human rights safeguards to protect individuals from discrimination and violence related to testing.
Quitting smoking significantly improves lung function test scores in asthmatics, even after just one week of no cigarettes. The study found a notable increase in lung function improvements compared to high-dose anti-inflammatory treatment.
Researchers developed a non-invasive Doppler ultrasonography method to detect fetal anemia in high-risk pregnancies. The study found that this new procedure is safer than traditional testing methods, which can be traumatic for the mother and carry a risk of miscarriage.
A study led by Associate Professor Barbara Fazekas de St. Groth found that healthy individuals have up to twice the number of disease-fighting regulatory T cells compared to IBD patients. This discovery has significant implications for diagnosing and preventing autoimmune diseases.
Researchers at the University of Texas Medical Branch have developed a potential test to estimate how many people are infected with variant Creutzfeldt-Jakob disease (vCJD), which can take up to 40 years to manifest. The test could also help prevent transmission through blood transfusions and organ transplants by detecting prions in th...
Particles of toxic lead solder used in plumbing can evade detection in some water quality tests, according to researchers funded by the National Science Foundation. Larger particles can get trapped in faucet aerator screens, while smaller particles stick to sampling containers, resulting in inaccurate readings.
A simple and inexpensive test identifies tumours with protein IMP3, predicting cancer spread, allowing for targeted treatment. Patients with these tumours are six times more likely to develop metastasis and four times more likely to die after surgery.
Researchers developed a safe way to monitor amyloid beta peptide production and clearance rates in the human central nervous system. This test could improve diagnosis and treatment of Alzheimer's disease, as well as help scientists better understand its causes.
Researchers found that people tend to consume a single unit of food when served in a small portion, despite the actual quantity being larger. This 'unit bias' helps explain how environmental factors influence eating habits and may contribute to obesity.
A survey of UK laboratories showed a 83% increase in lab test requests from primary care between 2000 and 2004. Two strategies developed by Dr. Bernie Croal reduced unnecessary test requests by 10-22% in Scottish primary care practices. These interventions are feasible within most laboratory settings.