Product Introduction Copy (Marketing Copy)
ZFirst D-Dimer Assay Kit: Quantum Dot Technology, Identifying Minor Clinical Risks
D-Dimer (D-Dimer) is a specific marker in the fibrin degradation process. ZFirst employs the cutting-edge quantum dot immunofluorescence method (QD-FIA) to provide highly sensitive and comprehensive quantitative test results for clinical use. In the detection of deep vein thrombosis (DVT), pulmonary embolism (PE), and disseminated intravascular coagulation (DIC), ZFirst is a reliable partner for medical institutions.

Core Advantages (Why Choose ZFirst D-Dimer)
Quantum dot-driven high sensitivity Quantum dot (Quantum Dot) nanomaterials possess extremely strong luminescence brightness and light stability. Compared to traditional reagents, ZFirst can achieve precise capture at lower concentrations, significantly improving the negative predictive value of exclusion diagnosis.
Full quantitative rapid results Compatible with the ZFirst fluorescence analyzer, from sample addition to result issuance, it only takes 10-15 minutes. The full quantitative numerical display enables doctors to make more scientific judgments on thrombosis risks.
Excellent stability and repeatability Quantum dot materials are not easily affected by complex sample backgrounds, and have strong anti-fluorescence quenching ability. The detection signal is persistent and stable, ensuring extremely low intra-batch and inter-batch differences (CV < 10%).
Simple operation, compatible with POCT, no need for complex laboratory large equipment. Single-person packaging for independent use, available for testing at any time. It is highly suitable for scenarios with high timeliness requirements such as emergency departments, ICUs, operating rooms, and cardiology departments.
Professional quality guarantee Fine process control and strict quality management system ensure that each box of reagents meets international diagnostic standards. 25-person packaging, meeting the cost-effectiveness requirements of small laboratories and clinics.

Product Specifications

Product Overview (Summary)

The ZFirst D-Dimer Test Kit utilizes advanced Quantum Dot Fluorescence Immunoassay (QD-FIA) technology to provide high-sensitivity, fully quantitative detection of fibrin degradation products. Engineered for rapid point-of-care testing (POCT) and central laboratory diagnostics, the ZFirst D-Dimer Test Kit allows medical professionals to accurately exclude Deep Vein Thrombosis (DVT), Pulmonary Embolism (PE), and assist in the diagnosis of Disseminated Intravascular Coagulation (DIC). With a rapid reaction time of 10–15 minutes and exceptional signal stability, Beijing Jiachuang Jiuhe Global Trade Co., Ltd delivers a highly reliable diagnostic solution that enhances clinical workflow efficiency and patient outcomes worldwide.

Comprehensive Product Description

The ZFirst D-Dimer Test Kit is a professional-grade quantitative diagnostic reagent designed to meet the rigorous demands of modern emergency medicine, critical care, and clinical cardiology. D-Dimer serves as a crucial biomarker for fibrinolysis, making its precise quantification essential for assessing thrombotic risks.

Traditional latex agglutination or standard immunochromatographic assays often struggle with background interference, photobleaching, or insufficient sensitivity at low concentration thresholds. The ZFirst D-Dimer Test Kit addresses these limitations by integrating quantum dot nanomaterials into the fluorescence immunoassay matrix. These nanoscale semiconductor crystals exhibit superior luminescence intensity, broad excitation spectra, and narrow emission peaks, enabling the ZFirst D-Dimer Test Kit to capture trace amounts of D-Dimer antigens in whole blood and plasma samples with remarkable precision.

Designed for seamless operational integration, each ZFirst D-Dimer Test Kit comes in a 25-test single-person packaging format to prevent reagent waste and cross-contamination. Coupled with the compatible ZFirst quantum dot fluorescence analyzer, the ZFirst D-Dimer Test Kit streamlines the testing procedure into a simple, three-step process: sample application, incubation, and automated reader evaluation. This eliminates complex manual calculations and reduces human error in high-pressure clinical settings.

Key Product Features

• Quantum Dot Nanotechnology: Incorporates cutting-edge QD-FIA chemistry for ultra-bright fluorescence output, ensuring exceptional analytical sensitivity and a superior negative predictive value for venous thromboembolism exclusion.

• Rapid Turnaround Time: Delivers fully quantitative D-Dimer concentration results within 10 to 15 minutes, empowering clinicians to make time-sensitive decisions in emergency departments and ICUs.

• High Photostability & Signal Persistence: Quantum dot fluorophores exhibit resistance to photobleaching, allowing stable signal detection and reliable reproducibility across different testing cycles.

• Versatile Sample Compatibility: Validated for both human plasma and whole blood samples, offering ultimate flexibility for point-of-care testing and routine laboratory routines.

• Individual Test Packaging: Packed in a single-test cassette format (25 tests/box) with dedicated sample diluent and lot-specific ID chips to guarantee test integrity and automatic calibration.

By leveraging the narrow, symmetrical emission spectra of quantum dots, the ZFirst D-Dimer Test Kit minimizes optical overlap and background noise. This high signal-to-noise ratio is critical when measuring low-level D-Dimer concentrations near clinical cutoff values. Furthermore, the robust surface chemistry of quantum dots minimizes non-specific binding, ensuring that the target antigen-antibody reaction yields a linear fluorescence signal directly proportional to the D-Dimer concentration. Consequently, the ZFirst D-Dimer Test Kit achieves an intra-batch and inter-batch coefficient of variation (CV) of less than 10%, offering clinical laboratories unmatched diagnostic confidence.

Clinical Applications

• Exclusion of Deep Vein Thrombosis (DVT) & Pulmonary Embolism (PE): A negative result from the high-sensitivity ZFirst D-Dimer Test Kit safely rules out VTE in low-to-moderate probability patients, avoiding unnecessary invasive imaging procedures.

• Disseminated Intravascular Coagulation (DIC) Diagnosis: Provides precise quantitative data to assist in the early identification and monitoring of DIC progression in critical care conditions.

• Thrombolytic Therapy Monitoring: Enables real-time tracking of intravascular fibrinolysis during anticoagulant or thrombolytic treatments, helping clinicians adjust dosage protocols dynamically.

• Post-Operative Thrombotic Risk Assessment: Serves surgical units by continuously monitoring patients at high risk for hypercoagulable states after major orthopedic or vascular surgeries.

Commercial & Strategic Value for B2B Buyers

For healthcare distributors, clinical laboratories, and medical institutions, investing in the ZFirst D-Dimer Test Kit provided by Beijing Jiachuang Jiuhe Global Trade Co., Ltd represents a highly cost-effective strategy.

• Reduced Operational Costs: The room temperature storage (2°C–30°C) reduces cold-chain logistics expenses and storage overhead.

• Enhanced POCT Efficiency: Eliminates the requirement for large, centralized automated analyzers. Small clinics, emergency rooms, and field hospitals can achieve central-lab accuracy at a fraction of the capital expenditure.

• Optimized Patient Flow: Fast 10-15 minute results decrease emergency department turnaround times, freeing up clinical beds and improving patient throughput.

• Reliable Global Supply Chain: Supported by Beijing Jiachuang Jiuhe Global Trade Co., Ltd, healthcare partners receive consistent product supply, strict international quality compliance, and dedicated technical customer support.

Frequently Asked Questions (FAQ)

Q1: How does the ZFirst D-Dimer Test Kit compare to traditional colloidal gold test strips?

A: The ZFirst D-Dimer Test Kit uses Quantum Dot FIA technology, which offers significantly higher luminescence intensity, broader dynamic range, and precise quantitative readings compared to qualitative or semi-quantitative colloidal gold test strips.

Q2: What equipment is required to read the ZFirst D-Dimer Test Kit?

A: The ZFirst D-Dimer Test Kit is fully compatible with the ZFirst series quantum dot fluorescence immunoassay analyzers, which automatically process the test cassette using the included lot-specific ID chip.

Q3: Can the ZFirst D-Dimer Test Kit accept capillary whole blood?

A: The ZFirst D-Dimer Test Kit is validated for venous whole blood and plasma samples. Please refer to the specific package insert provided by Beijing Jiachuang Jiuhe Global Trade Co., Ltd for detailed sample collection protocols.

Q4: What is the storage condition for the ZFirst D-Dimer Test Kit?

A: The ZFirst D-Dimer Test Kit should be stored at 2°C to 30°C in a dry environment protected from direct sunlight, boasting a shelf life of 18 months.