Establishment, verification, and application of concentration intervals corresponding to dipstick grades for urinary protein.

Background: To address the situation that the accuracy of concentration intervals (CI) corresponding to dipstick grades is not given by the manufacturers or literature, we developed a method that determined reasonable dipstick grades with concentration intervals (GCIs) based on the percent agreement (PA) and discussed the GCI application to comparability among currently dipstick tests.

Methods: By comparing the results of 2 dipstick tests (iChem and KU-500) with the quantitative test (AU5800), the GCIs were verified and established based on the PAs, which were calculated and used as an indicator of GCI's accuracy. The overlap (percent) between the 2 GCIs with the same grade (2 dipstick devices), was calculated and used to evaluate the agreement between their test results.

[Changes in myocardial enzyme spectrum and electrocardiogram after Salmonella food poisoning].

Objective: To study the changes in myocardial enzyme spectrum in relation to electrocardiogram (ECG) in Salmonella food poisoning.

Methods: The myocardial enzyme spectrum and ECG of 56 patients with Salmonella food poisoning were examined, with 34 normal subjects serving as the control group.

Results: In the food poisoning group, the myocardial enzyme activities was increased in 36 cases (64.