Accurate and Reliable Prostate Cancer Risk Assessment
Product Overview
The [Your Brand Name] Free PSA (Prostate-Specific Antigen) ELISA Kit is a highly sensitive and specific in vitro diagnostic (IVD) tool designed for the quantitative measurement of free PSA in human serum or plasma. Free PSA, when measured in conjunction with total PSA, plays a critical role in enhancing the differentiation between benign prostatic hyperplasia (BPH) and prostate cancer, particularly in men with elevated total PSA levels. This kit provides healthcare professionals with crucial data to aid in more informed clinical decisions regarding prostate health.
The Importance of Free PSA Testing
While total PSA is a widely used marker for prostate cancer screening, its lack of specificity can lead to unnecessary biopsies. By measuring the ratio of free PSA to total PSA, clinicians can significantly improve the diagnostic accuracy:
Elevated Total PSA (e.g., 4-10 ng/mL): In this "grey zone," a lower percentage of free PSA often correlates with a higher probability of prostate cancer, while a higher percentage of free PSA suggests a higher likelihood of BPH.
Enhanced Risk Stratification: Provides a more nuanced risk assessment, helping to guide decisions on further diagnostic procedures.
Reduced Unnecessary Biopsies: Aids in avoiding invasive procedures for men who are less likely to have prostate cancer.
Key Features & Benefits
High Sensitivity & Specificity: Precisely detects free PSA with minimal cross-reactivity, ensuring accurate results crucial for diagnostic decisions.
Quantitative Measurement: Provides numerical values for free PSA concentration, allowing for calculation of the free-to-total PSA ratio.
Reliable Performance: Consistently delivers reproducible results, minimizing inter-assay variability and enhancing confidence in clinical data.
User-Friendly Protocol: Streamlined assay procedure with ready-to-use reagents, minimizing hands-on time and simplifying laboratory workflow.
Microtiter Plate Format: Standard 96-well plate format compatible with most automated ELISA plate readers and washers.
Optimized Reagents: All reagents are optimized for stability and performance, ensuring assay integrity over the shelf life.
Robust Quality Control: Manufactured under stringent ISO 13485 standards, with comprehensive quality control checks for lot-to-lot consistency.
CE Marked: Complies with European IVD directives (if applicable), ensuring suitability for clinical diagnostic use.
Principle of the Assay
The [Your Brand Name] Free PSA ELISA Kit employs a quantitative sandwich enzyme immunoassay technique.
Capture Antibody: Pre-coated microtiter wells contain monoclonal antibodies specific for free PSA.
Sample Incubation: Diluted patient samples, standards, and controls are added to the wells. Any free PSA present in the sample binds to the immobilized capture antibody.
Detection Antibody: A horseradish peroxidase (HRP)-conjugated monoclonal antibody specific for a different epitope of free PSA is added, forming a sandwich complex.
Substrate Reaction: After washing away unbound material, a chromogenic substrate (TMB) is added. The HRP enzyme catalyzes the conversion of TMB, producing a blue color.
Stop Solution & Measurement: The reaction is stopped by adding an acid solution, which changes the color from blue to yellow. The intensity of the yellow color is directly proportional to the concentration of free PSA in the sample and is measured spectrophotometrically at 450 nm.
Quantification: A standard curve is generated using known concentrations of free PSA standards, allowing for accurate quantification of free PSA in unknown samples.
Specificity: High, with no significant cross-reactivity to complexed PSA or other related analytes.
Intra-Assay CV: < 5%
Inter-Assay CV: < 10%
Storage: 2-8°C
Shelf Life: 12 months from manufacturing date (unopened)
Applications
The [Your Brand Name] Free PSA ELISA Kit is intended for:
Clinical Diagnostics: As an aid in the differentiation of benign prostatic hyperplasia (BPH) from prostate cancer in men with elevated total PSA levels.
Risk Assessment: Enhancing the accuracy of prostate cancer risk assessment.
Patient Monitoring: Used in conjunction with total PSA for monitoring certain patient populations.
Research: For studies investigating prostate disease markers and diagnostic algorithms.
Why Choose [Your Brand Name] Free PSA ELISA Kit?
At [Your Brand Name], we are committed to providing high-quality, reliable diagnostic solutions. Our Free PSA ELISA Kit is meticulously developed and rigorously validated to meet the demanding standards of clinical laboratories. By choosing our kit, you gain:
Confidence in Results: Benefit from a highly specific and sensitive assay that delivers consistent, trustworthy data.
Operational Efficiency: Optimize your laboratory workflow with a straightforward protocol and robust reagents.
Expert Support: Access to our dedicated technical support team for any assistance or inquiries.
Contribution to Better Patient Care: Empower clinicians with essential information for precise diagnosis and management of prostate conditions.
Ordering Information
Product Name
Catalog Number
Size
Free PSA ELISA Kit (96T)
[Insert Cat No.]
96 Tests
To learn more or request a quote, please contact our sales team:
Phone: [Your Phone Number]
Email: [Your Email Address]
Website: [Your Website URL]
Intended Use and Disclaimer
FOR IN VITRO DIAGNOSTIC USE ONLY.
The [Your Brand Name] Free PSA ELISA Kit is intended for professional use only by trained laboratory personnel. Results obtained with this kit should always be interpreted in conjunction with other clinical findings, patient history, and other diagnostic tests. It should not be used as the sole basis for diagnosis or treatment decisions. Always refer to the product insert for the most current and detailed instructions for use, warnings, and precautions.
