Items in AFP with MESH term: Predictive Value of Tests
Predicting the Risk of Bleeding in Patients Taking Warfarin - Point-of-Care Guides
ABSTRACT: Based on etiology, diabetes is classified as type 1 diabetes mellitus, type 2 diabetes mellitus, latent autoimmune diabetes, maturity-onset diabetes of youth, and miscellaneous causes. The diagnosis is based on measurement of A1C level, fasting or random blood glucose level, or oral glucose tolerance testing. Although there are conflicting guidelines, most agree that patients with hypertension or hyperlipidemia should be screened for diabetes. Diabetes risk calculators have a high negative predictive value and help define patients who are unlikely to have diabetes. Tests that may help establish the type of diabetes or the continued need for insulin include those reflective of beta cell function, such as C peptide levels, and markers of immune-mediated beta cell destruction (e.g., autoantibodies to islet cells, insulin, glutamic acid decarboxylase, tyrosine phosphatase [IA-2a and IA-2ß]). Antibody testing is limited by availability, cost, and predictive value.
ABSTRACT: Coronary heart disease is the most common cause of death in the United States. The conventional risk factor approach to primary prevention excludes many patients who could benefit from preventive therapies. A global risk approach allows more accurate estimates of risk to guide clinical primary prevention efforts. Global risk of coronary heart disease is a calculation of the absolute risk of having a coronary heart disease event (e.g., death, myocardial infarction) over a specified period. It is based on an empiric equation that combines major risk factors, such as blood pressure and cholesterol levels. When physicians know a patient’s global risk of coronary heart disease, they are more likely to prescribe risk-reducing therapies such as antihypertensives, statins, and aspirin. In addition, patients who know their risk level are more likely to initiate risk-reducing therapies. Many tools are available to estimate global risk, including several Web-based calculators. In the United States, tools based on the Framingham Heart Study are recommended.
ABSTRACT: Lowering cholesterol can reduce the incidence of coronary heart disease. Treating hypertension reduces overall mortality and is most effective in reducing the risk of coronary heart disease in older patients. Smoking cessation reduces the level of risk to that of nonsmokers within about three years of cessation. Aspirin is likely to be an effective means of primary prevention, but a group in whom treatment is appropriate has yet to be defined. Evidence that supplementation with vitamin A or C reduces the risk of coronary heart disease is inadequate; the data for use of vitamin E are inconclusive. Epidemiologic evidence is sufficient to recommend that most persons increase their levels of physical activity. Lowering homocysteine levels through increased folate intake is a promising but unproven primary prevention strategy. Hormone replacement therapy was associated with reduced incidence of coronary heart disease in epidemiologic studies but was not effective in a secondary prevention trial.
ABSTRACT: Minor cytologic abnormalities of the cervix, such as atypical squamous cells of undetermined significance (ASCUS), are vastly more common than high-grade squamous intraepithelial lesions or invasive cancer. Current guidelines for the management of ASCUS include repeating the Papanicolaou (Pap) smear at specific intervals, referring all patients for colposcopy or using an adjunctive test such as hybrid capture human papillomavirus (HPV) testing or cervicography. The usefulness of the Pap smear is limited by its considerable false-negative rate and its dependence on clinician and laboratory performance. Colposcopy is a highly sensitive procedure, but many patients with ASCUS have normal colposcopic findings. The hybrid capture test not only measures quantitative HPV load but also detects both oncogenic and nononcogenic HPV types, thereby increasing the probability that serious cervical disease is not missed. Hybrid capture sampling is simple to perform, and positive results are strongly associated with cervical dysplasia. HPV testing in women with ASCUS can be used as an adjunctive test to identify those with HPV-associated disease; it can also serve as a quality assurance measure. Together, repeat Pap smears and HPV testing should identify most patients with underlying cervical dysplasia. Combined testing may also minimize the number of unnecessary colposcopic examinations in women who have no disease.
Screening for Osteoporosis - Putting Prevention into Practice
Screening for Osteoporosis: Recommendation Statement - U.S. Preventive Services Task Force
Brain Natriuretic Peptide for Ruling Out Heart Failure - FPIN's Clinical Inquiries
Prevention of Falls in Community-Dwelling Older Adults: Recommendation Statement - U.S. Preventive Services Task Force