Master the Benchtop: A Guide to the Diagnostica Stago STart 4 Coagulation Analyzer
The manual provides detailed maintenance and troubleshooting procedures to minimize downtime and ensure optimal performance. These procedures include:
Pipette 100 µL of plasma into the cuvette and incubate for the required time (e.g., 2 minutes for certain assays).
Centrifuge blood samples to obtain platelet-poor plasma (PPP). Step 3: Running a Test (e.g., PT or APTT) diagnostica stago start 4 coagulation analyzer manual
Avoid using metal or magnetic tools near the measurement channels, as this can disrupt the internal magnetic field generation.
Built-in 40-column thermal internal printer; RS232-C data transmission interface
He placed the cuvette containing the patient's plasma and a tiny magnetic stirring bar into the measuring well. Drop. Click. Master the Benchtop: A Guide to the Diagnostica
) is known less as a machine and more as a "reliable veteran" of the lab. While modern labs use massive, fully automated systems, the STart 4 remains the "gold standard" backup because it doesn't just look for a clot—it The Story of the "Unstoppable" Mechanical Hand The STart 4’s claim to fame is its Viscosity-based Detection System (VDS)
1. Loose connection cord.2. Broken microswitch inside the pipette.
. While optical analyzers might get "confused" by dark or cloudy (lipemic) plasma samples, the STart 4 uses a small metal ball and an electromagnetic field to detect physical thickening. In a typical "day in the life" of this analyzer: The Preparation Step 3: Running a Test (e
Press the key on the keypad to begin the assay-specific incubation countdown (e.g., 180 seconds for APTT). Step 4: Measuring the Sample
Pipette the necessary reagent. The Start 4 will detect the addition and automatically start the timer.