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The Cytovale IntelliSep test is a semi-quantitative test that assesses cellular host response via deformability cytometry of leukocyte biophysical properties and is intended for use in conjunction with clinical assessments and laboratory findings to aid in the early detection of sepsis with organ dysfunction manifesting within the first 3 days after testing. It is indicated for use in adult patients with signs and symptoms of infection who present to the Emergency Department. The test is performed on an EDTA anticoagulated whole blood sample.

The IntelliSep test generates an IntelliSep Index value that falls within one of three discrete interpretation bands based on the probability of sepsis with organ dysfunction manifesting within the first three days after testing. The IntelliSep test represents the probability of the clinical syndrome of sepsis and is intended to be used alongside other clinical information and clinical judgment. It does not identify the causative agent of infection and should not be used as the sole basis to determine the presence of sepsis. The IntelliSep test is intended for in vitro diagnostic use.

The Cytovale IntelliSep test is a short turn-around time (STAT) test, producing results in 10 minutes or less, to aid in the early detection of sepsis with organ dysfunction manifesting within the first 3 days after testing. It assesses the state of immune activation in patients with signs and symptoms of infection who present in the Emergency Department (ED). The IntelliSep test is run on the Cytovale System, a laboratory benchtop analyzer comprised of three modules: Sample Preparation Module, Cell Imaging Module, and Imaging Analysis Module. To run a test, the laboratory operator transfers 100 microL of whole blood into the sample preparation tube which is then placed into the Cytovale System. The system automatically lyses red blood cells, and washes the purified leukocytes in a diluent, producing a total volume of approximately 1mL of prepared sample, which the operator then transfers to the IntelliSep cartridge for analysis on the Cytovale System. A microfluidic deformability cytometry technique is used to measure the biophysical properties of thousands of individual leukocytes in rapid succession. These properties have been shown to differ in quiescent white blood cell populations when compared to those in septic patients, enabling rapid assessment of the host response and the likelihood of having sepsis with organ dysfunction manifesting within the first 3 days after testing. Based on these measurements, the test provides a single score, the IntelliSep Index (ISI), ranging from 0.1-10.0, stratified into three discrete interpretation bands (Band 1, Band 2, Band 3) of increasing sepsis likelihood.

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