[Cardiovascular risk factors of medical specialists in Argentina].

Introduction: The objective was to analyze the prevalence of classic CVRFs in specialist doctors and establish if there are differences by sex, age and specialty.

Materials And Methods: Observational, cross-sectional study carried out through an anonymous selfadministered survey of specialist doctors throughout the country. Sociodemographic and CVRF data were collected by self-report.

[Differential diagnosis between exudate and transudate in pleural effusion].

The objective was 1) to determine the usefulness of different criteria in the differential diagnosis between exudate and transudate in pleural effusion, 2) to evaluate albumin gradient changes in pleural effusion fluids characterized as transudates in patients who do and do not receive diuretic therapy, 3) to define the specificity of pleural effusions of neoplastic etiology. All patients with pleural effusion admitted to the hospital between January 15 and August 15 1994 were evaluated consecutively. Serum and pleural effusion, total protein, LDH, albumin and cholesterol levels were measured and the etiologic diagnosis of the pleural effusion (gold standard) was established.