TPI Test as a Daily Routine Laboratory Procedure

TPI test in treated syphilis.

The Treponema pallidum immobilization (TPI) test has received wide attention as a diagnostic test for syphilis, but few studies have appeared on the response of this test to adequate treatment for syphilis. The Blue Star study of the Public Health Service (Bauer, 1951 ; Shafer, Usilton, and Price, 1954) offered a group of patients who had had bonafide syphilis, who had been adequately treated, ...

Immunoradiometric assay of thyrotropin as a "first-line" thyroid-function test in the routine laboratory.

We compared the utility of a sensitive immunoradiometric assay for serum thyrotropin as a "first-line" thyroid-function test with a strategy based on first measuring total thyroxin in serum. The immunoradiometric assay appears to distinguish primary hypothyroidism and hyperthyroidism from euthyroidism in "new" patients. The role of this test in monitoring antithyroid treatment or thyroxin-repla...

IMPROVEMENT OF THE TEST PROCESS using TPI

This paper presents the TPI-model, which is based on current state-of-the-art test process improvement practices. The model gives practical guidelines for assessing the maturity level of testing in an organisation and for step by step improvement of the process. The purpose of such improvement could be reaching CMM level 3. The model consists of 20 key areas, each with different levels of matur...

Lipoprotein electrophoresis should be discontinued as a routine procedure.

Reviewing our five-year experience with more than 1000 lipid profiles (assays for cholesterol and triglycerides In plasma of fasting patients and lipoprotein electrophoresis of their plasma lipoproteins), I conclude that lipoprotein electrophoresis is superfluous for routine clinical laboratory use, being generally redundant to the other parts of the profile. This conclusion is also prompted in...

Studies on the treponemal immobilization test. III. Use of the TPI as a verification test in suspected latent syphilis.