We describe a method for the collection of expired air and further document the performance of our analytical technique that is used to measure ethane and pentane simultaneously. Four minutes of breathing hydrocarbon-free air before collection effectively removed high concentrations of residual ambient ethane and pentane from the lungs, with washout times up to 30 min resulting in no further re...

Objective Ankylosing spondylitis (AS) is an inflammatory disease with documented elevated cardiovascular (CV) risk due to systemic inflammation and a higher prevalence of CV risk factors. CV risk management (CV-RM) could be an effective method to reduce CV mortality and morbidity in AS patients. We assessed CV risk and evaluated guideline adherence according to the Dutch CV-RM guideline. Method...

BACKGROUND Ankylosing spondylitis (AS) is an inflammatory disease with documented elevated cardiovascular (CV) risk due to systemic inflammation and a higher prevalence of CV risk factors. CV risk management (CV-RM) could be an effective method to reduce CV mortality and morbidity in AS patients. We assessed CV risk and evaluated guideline adherence according to the Dutch CV-RM guideline. MET...

Objective The aim of our study was to evaluate the validity of the digital imaging fiber-optic transillumination (DIFOTI) method in comparison with clinical visual examination (CV) and bitewing (BW) radiography on detecting caries lesions on proximal surfaces of teeth. Materials and Methods Proximal tooth surfaces of premolars and molars (n = 2,103) of 91 voluntary university students aged fr...

BACKGROUND We organized and conducted a proficiency testing study (CardioOrmocheck) to evaluate the differences in analytical performance of brain natriuretic peptide (BNP) and N-terminal proBNP (NT-proBNP) immunoassays. METHODS Approximately 90 Italian laboratories were involved in the 2005-2007 proficiency testing cycles, while 112 laboratories took part in the 2008 cycle (from January to M...

BACKGROUND A wealth of published studies have been published on association between Chlamydia pneumoniae (C.pneumoniae) infection and cerebrovascular (CV) disease, but the results were inconsistent. This meta-analysis provides a systematic review of the available evidence from all serological and pathological studies of CV disease and C.pneumoniae. METHODS A comprehensive research was conduct...

Table 1. Precision of Lactate and Pyruvatea (1970). Lactate method Pyi’uv.ts method 10. Davidson, D. F., Absorbance accuracy Mean, 50 Mean SO check on the LKB 8600 reaction rate anammol/tftsr CV, % n imol/IItsr CV, % 11 lyzer. J. Clin. Pathol. 29,758(1976). Within-batch precision ii. Bucher, T., Czak, R., Lamprecht, W., and 1.80 0.09 4.9 14 104 4.3 4.1 15 Latzko,E., In Methods of Enzymatic Anal-

CLINICAL CHEMISTRY, Vol. 34, No. 6, 1988 1357 The index, of fiduciality is therefore equal to (CVi + CV)’/0.5 when it is <1.00 a method surpasses the goal and when it is >1.00 a method is analytically unsatisfactory. As an example, the following tabulation shows the index calculated from the median precision and comparative bias achieved (May to August, 1986) in the Australasian general serum c...

Health technology Laboratory screening for congenital thrombophilic alterations in women who wished to start oral contraceptive (OC) treatment. At the first screening, the following tests were carried out on blood taken from the subjects. (1) Activated protein C resistance (APCR), using the in-house clotting method proposed by de Ronde and Bertina. The inter-assay coefficient of variation (CV) ...

Health technology Laboratory screening for congenital thrombophilic alterations in women who wished to start oral contraceptive (OC) treatment. At the first screening, the following tests were carried out on blood taken from the subjects. (1) Activated protein C resistance (APCR), using the in-house clotting method proposed by de Ronde and Bertina. The inter-assay coefficient of variation (CV) ...