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Clinical Laboratory News - American Association for Clinical ...

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2008 NEw Pr o d u c t rEv i Ew special section<br />

Advertisement<br />

Total P1NP Assay<br />

The total P1NP assay from Roche Diagnostics<br />

is useful <strong>for</strong> monitoring therapy of<br />

patients with osteoporosis. It detects increased<br />

bone turnover in postmenopausal<br />

women and is sensitive to significant changes<br />

induced by anabolic or anti-resorptive therapies.<br />

The advantages of the automated serum<br />

total P1NP include: little diurnal variability<br />

allowing <strong>for</strong> draws at any time, unlike previous<br />

markers; rapid, 18-minute assay time;<br />

and intra- and inter-assay variations lower<br />

than 2% and 5%, respectively. Total P1NP<br />

documents changes that exceed the LSC in a<br />

majority of individuals.<br />

Roche Diagnostics<br />

Circle No. 371 in the Reader Service Card<br />

ONLINE TDM Tobramycin Test<br />

The ONLINE TDM tobramycin assay is a<br />

homogenous immunoassay based on kinetic<br />

interaction of microparticles in solution<br />

(KIMS). Microparticles coated with tobramycin<br />

rapidly aggregate in the presence of<br />

a tobramycin antibody. The presence of<br />

tobramycin in the sample inhibits particle<br />

lattice <strong>for</strong>mation, generating a classic<br />

inhibition curve with the maximum rate<br />

of aggregation at the lowest tobramycin<br />

concentration. The 12-week onboard stability<br />

of the cobas c pack, along with calibration<br />

stability, allow <strong>for</strong> a convenient and<br />

economical method <strong>for</strong> TDM of tobramycin<br />

in serum, K2 or K3 EDTA, or sodium or<br />

lithium-heparin plasma on the Roche cobas<br />

c 501 analyzers.<br />

Roche Diagnostics<br />

Circle No. 372 in the Reader Service Card<br />

proBNP II Assay<br />

The Roche Diagnostics ProBNP II assay,<br />

launched in April, is a 2nd-generation assay<br />

using monoclonal antibodies <strong>for</strong> the detection<br />

of NT-proBNP. Monoclonal antibodies<br />

provide consistent high quality through<br />

improved lot-to-lot consistency and excellent<br />

precision, ranging from 1.6%–4.6% CV<br />

over the full measuring range. The unique<br />

NT-proBNP claim, “aid in the assessment<br />

of increased risk of cardiovascular events<br />

in patients who have stable coronary artery<br />

disease (CAD),” promotes quality management<br />

of cardiovascular risk with patients<br />

diagnosed with CAD and creates an outreach<br />

growth opportunity <strong>for</strong> labs.<br />

Roche Diagnostics<br />

Circle No. 373 in the Reader Service Card<br />

ONLINE TDM Phenobarbital Test<br />

The ONLINE TDM Phenobarbital assay is a<br />

homogenous immunoassay based on kinetic<br />

interaction of microparticles in solution<br />

(KIMS). Microparticles coated with phenobarbital<br />

rapidly aggregate in the presence of a<br />

phenobarbital antibody. The presence of<br />

phenobarbital in the sample inhibits particle<br />

lattice <strong>for</strong>mation, generating a classic<br />

inhibition curve with the maximum rate<br />

of aggregation at the lowest phenobarbital<br />

concentration. The 90-day onboard stability<br />

of the cobas c pack, along with calibration<br />

stability and 200 test cobas c pack configuration,<br />

allows <strong>for</strong> a convenient and economical<br />

see us at the 2008 clin lab expo, booth no. 2421<br />

method <strong>for</strong> TDM of phenobarbital in serum,<br />

K2 or K3 EDTA, or sodium or lithiumheparin<br />

plasma on the Roche cobas c 501<br />

analyzers.<br />

Roche Diagnostics<br />

Circle No. 374 in the Reader Service Card<br />

ONLINE TDM Quinidine<br />

The ONLINE TDM Quinidine assay is<br />

a homogenous immunoassay based on<br />

kinetic interaction of microparticles in<br />

solution (KIMS). Microparticles coated with<br />

quinidine rapidly aggregate in the presence<br />

of a quinidine antibody. The presence of<br />

quinidine in the sample inhibits particle lattice<br />

<strong>for</strong>mation, generating a classic inhibition<br />

curve with the maximum rate of aggregation<br />

CliniCal laboratory news JuLy 2008 29

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