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Clinical Diagnostic Laboratories is an affordable and efficient medical laboratory located in Northern Virginia in Sterling, VA and in Ashburn, VA just minutes from One Loudoun. At our facility, we strive to provide the highest possible quality testing for doctors, companies and organizations, and for individual patients. The DMV's Most Trusted Lab for Fast, Accurate, and Reliable Testing–Every Time From routine panels to advanced diagnostics, we deliver results you can trust with speed you can count on. About Us Schedule An Appointment Pre-Built Panels Ashburn 44355 Premier Plaza Suite 230, Ashburn, VA 20165 Schedule An Appointment OUR CURRENT HOURS ARE: Monday 9am - 4pm Tuesday 9am - 4pm Wednesday 9am - 4pm Thursday 9am - 4pm Friday 9am - 4pm Saturday 10am - 2pm* Sunday: Closed* *Appointments are highly recommended on Monday-Saturdays and major Holidays are by appointment only Please contact us ahead of time to verify if walk-ins are available. Schedule An Appointment ABOUT CLINICAL DIAGNOSTIC LABORATORIES Preferred Diagnostic Center in Loudoun County Our main goal is to provide an alternative testing facility for individuals: doctors, as well as hospitals that is affordable and convenient. What makes Clinical Diagnostics Laboratories different from the others? We provide excellent service with a personal and friendly touch. We have an on-call Director at the Lab who has a Ph.D. in Pathology. Our Full-time Technologist has over ten years of experience in the Medical Lab field. Clinical Diagnostic Laboratories has grown quickly throughout the area with respect to returning individuals, referrals and walk-ins because we treat our patients with dignity and respect. About Us “Clinical Diagnostic Laboratories is recognized as the TOP Diagnostic Lab for the Northern Virginia, Washington, DC and Maryland regions and is featured on the TOP Doctors Interviews which are seen on CNN Headline News, MSNBC, Oprah Winfrey Network, BRAVO and other networks” Services We Provide Our laboratory provides services for a variety of organizations and companies across a wide array of industries. Whether you're a private organization, government contractor, medical facility, small to large company, or something else entirely, we have the resources to help you achieve your desired goals. Please inquire for more information. View All Services No Insurance Required - Try Our Pre-Built Panels Our pre-built lab panels offer a fast, affordable way to check in on your health—no insurance or doctor’s order required. Whether you're monitoring your wellness, checking vitamin levels, or screening for common conditions, we've bundled the most important tests into convenient packages. Simple pricing, quick results, and expert local service make it easy to take control of your health on your terms. Order a Health Panel Let Us Come to You Our on-site services extend to Northern Virginia, Maryland, and Washington DC We care about our patients and understand that being home-bound or taking time out of your busy schedule can make diagnostic testing inconvenient, that is why Clinical Diagnostics Laboratories will come to you. Schedule An Appointment

This is the Contact page for Clinical Diagnostic Laboratories. Last Name Email Phone Type your message here... Submit Thanks for submitting! A member of our team will respond to your inquiry as soon as possible. 44355 Premier Plaza, Suite 240 Ashburn, VA 20147

Are you interested in scheduling an appointment for blood testing, COVID, FLU, Allergy testing, or some other medical test? Schedule an appointment with us here. SCHEDULE AN APPOINTMENT Clinical Diagnostic Laboratories is a leading medical laboratory providing a wide variety of tests and services, such as routine blood work, H. Pylori tests, STD testing, drug screening, allergy testing, COVID-19, Flu, and much more. Use our easy scheduling tool below to make an appointment. Also, be sure to check out our FAQs page to address any problems you might have. You may also email us or give us a phone call at (703) 430-1111 .

Ordering information regarding a ​Rheumatoid Factor (RF) for Clinical Diagnostic Laboratories. Rheumatoid Factor (RF) Ordering Recommendation Aids in the workup of suspected rheumatoid arthritis or undifferentiated inflammatory arthritides. Consider ordering this test in conjunction with Cyclic Citrullinated Peptide (CCP) Antibody, IgG (0055256 ) to increase specificity and sensitivity. Rheumatoid Arthritis Panel (3004055 ) is the preferred test. Mnemonic Methodology Quantitative Immunoturbidimetry Performed Mon-Sat Reported Within 24 hours New York DOH Approval Status This test is New York DOH approved. Specimen Required Patient Preparation: Fasting specimen preferred. Collect: Serum separator tube or plasma separator tube. Also acceptable: Green (lithium heparin), lavender or pink. Specimen Preparation: Allow the specimen to clot completely at room temperature. Transfer 0.5 mL serum or plasma to a Standard Transport Tube. (Min: 0.5 mL) Storage/Transport Temperature: Refrigerated Unacceptable Conditions: Plasma or other body fluids. Contaminated, hemolyzed, grossly icteric, or grossly lipemic specimens. Remarks: Stability: After separation from cells: Ambient: 24 hours; Refrigerated: 8 days; Frozen: 3 months (should not be thawed more than once) Reference Interval 0-14 IU/mL Interpretive Data Note CPT Code 86431 Components Component Chart Name Rheumatoid Factor Component Test Code 0050465 LOINC 11572-5 Aliases RA RF Rheumatoid Arthritis Factor

The Privacy Policy of Clinical Diagnostic Laboratories located in Sterling and Ashburn is located on this page. Privacy Statement 1. Introduction Welcome to Clinical Diagnostic Laboratories ("we," "us," or "our"). This Privacy Statement outlines how we collect, use, disclose, and safeguard your personal and medical information when you use our services, including our website and related applications (collectively referred to as the "Services"). By using our Services, you consent to the practices described in this Privacy Statement. 2. Information We Collect We may collect various types o f information from you, including: Personal Information: Name, contact information, date of birth, and other relevant identifiers. Medical Information: Information related to your health, medical history, and test results. Payment Information: Payment details for services purchased through our platform. Usage Data: Information about how you use our Services, including website interactions and app usage. 3. How We Use You r Infor mation We use the collected information for the following purposes: Providing Services: To deliver and manage the diagnostic testing services you request, including appointment scheduling and test result delivery. Communication: To contact you regarding appointments, test results, billing, and other relevant matters. Improving Services: To enhance and customize your experience with our Services, and to develop new features and offerings. Legal and Regulatory Compliance: To comply with applicable laws, regulations, and legal processes. 4. Information Sharing We may share your information with: Healthcare Providers: To facilitate the interpretation and communication of test results by qualified medical professionals. Service Providers: Third-party vendors and partners who assist us in providing and maintaining our Services. Legal Authorities: When req uired by law or in response to legal requests, such as court orders or subpoenas. 5. Data Security We implement appropriate technical and organizational measures to safeguard your personal and medical information. However, no data transmission over the Internet is completely secure, and we cannot guarantee the absolute security of your information. 6. Your Choices Access and Correction: You may review, update, or correct your personal information by contacting us. Communications: You can choose to receive or opt out of certain communications from us. Cookies and Tracking: You can manage your cookie preferences through your browser settings. 7. Third-Party Links Our Services may contain links to third-party websites. We are not responsible for the privacy practices or content of these websites. Please review the privacy policies of third-party sites before providing any personal information. 8. Children's Privacy Our Services are not intended for individuals un der the age of 18. We do not knowingly collect personal information from children. 9. Changes to this Privacy Statement We may update this Privacy Statement to reflect changes in our practices or legal requirements. Any changes will be posted on our website, and the date of the latest revision will be indicated. 10. Contact Us If you have questions, concerns, or requests related to your privacy or this Privacy Statement, please contact us at: Clinical Diagnostic Laboratories 2 Pidgeon Hill Dr., Suite 150, Sterling, VA 20165 44355 Premier Plaza, Suite 240, Ashburn, VA 20147 Email: info@clinicaldiagnosticlab.com Phone: (703) 430-1111 Fax: (703) 722-3890

Services for Organizations and Employers Available for All of Your Testing Needs! At our Medical Laboratory, we understand that testing your new employees might be difficult. We have you covered with our wide variety of comprehensive testing services, including COVID, Flu, Urine Drug Screenings, and much more. We make receiving results fast, efficient, and easy, so you can quickly and confidently move forward with your employee onboarding process. As a private lab, we strive to make the process of testing your employees fast, efficient, and easy. In order to provide the highest level of service to patients, organizations, and physicians we work with, we go the extra mile to make sure you have the results you need quickly and simply. For any questions or more information, contact us using the button below. CONTACT US

Ordering information regarding a Hepatic Function Panel test for Clinical Diagnostic Laboratories. Hepatic Function Panel Ordering Recommendation Methodology Quantitative Enzymatic Assay/Quantitative Spectrophotometry Performed Mon-Sat Reported Within 24 hours New York DOH Approval Status This test is New York DOH approved. Specimen Required Patient Preparation: Collect: Plasma separator tube or serum separator tube. Specimen Preparation: Allow serum tube to clot completely at room temperature. Separate serum or plasma from cells within 2 hours of collection. Storage/Transport Temperature: Refrigerated. Unacceptable Conditions: Remarks: Stability: After separation from cells: Ambient: 24 hours; Refrigerated: 1 week; Frozen: 1 year Reference Interval Components Available Separately Reference Interval Refer to report. Reference intervals may vary based on instrumentation. Interpretive Data Note This panel includes the following tests: Albumin, Serum or Plasma (0020030), Alkaline Phosphatase, Serum or Plasma (0020005), Aspartate Aminotransferase, Serum or Plasma (0020007), Alanine Aminotransferase, Serum or Plasma (0020008), Bilirubin, Direct, Serum or Plasma (0020033), Protein, Total, Plasma or Serum (0020029), and Bilirubin, Total, Serum or Plasma (0020032). CPT Code 80076 Components Component Test Code Component Chart Name LOINC 0020005 Alkaline Phosphatase 6768-6 0020007 Aspartate Aminotransferase 1920-8 0020008 Alanine Aminotransferase 1742-6 0020029 Protein Total, Serum/Plasma 2885-2 0020030 Albumin, Serum or Plasma 1751-7 0020032 Bilirubin, Total, Serum or Plasma 1975-2 0020033 Bilirubin Direct 1968-7 Aliases LFTs Liver Function Panel Liver Function Tests

Ordering information regarding a Basic Metabolic Panel test for Clinical Diagnostic Laboratories. C-Reactive Protein Ordering Recommendation Preferred test to detect acute phase inflammation (eg, autoimmune diseases, connective tissue disease, rheumatoid arthritis, infection, or sepsis). DO NOT ORDER for cardiovascular disease (CVD) risk assessment. Test for CVD risk assessment is C-Reactive Protein, High Sensitivity Methodology Quantitative Immunoturbidimetry Performed Mon-Sat Reported Within 24 hours New York DOH Approval Status This test is New York DOH approved. Specimen Required Patient Preparation: Collect: Plasma separator tube, or serum separator tube SST Specimen Preparation: Allow serum tube to clot completely at room temperature. Separate serum or plasma from cells ASAP within 30 minutes of collection. Transfer 1 mL serum or plasma to a Standard Transport Tube. (Min: 0.3 mL) Storage/Transport Temperature: Specimens collected in EDTA, citrate, or oxalate. Unacceptable Conditions: Hemolyzed specimens. Remarks: Stability: After separation from cells: Ambient: Calcium and CO2: 4 hours, All others: 24 hours; Refrigerated: 1 week; Frozen: 2 weeks Reference Interval Components Available Separately Reference Interval By report (reports may vary based on instrumentation) Interpretive Data By report (reports may vary based on instrumentation) Note CPT Code 86140 Components Component Test Code Component Chart Name LOINC 0050180 C-Reactive Protein 1988-5 Aliases C- Reactive Protein C- Reactive Protein, S CRP CRP, S CRP, Serum Protein, C-Reactive

Ordering information regarding a Thyroglobulin Antibody test for Clinical Diagnostic Laboratories. Thyroglobulin Antibody Ordering Recommendation Not recommended in the initial evaluation of autoimmune thyroid disease. Most often used to evaluate potentially unreliable thyroglobulin measurements in thyroid carcinomas. Mnemonic ATHYG Performed Mon-Sat Methodology Quantitative Chemiluminescent Immunoassay Reported Within 24 hours New York DOH Approval Status This test is New York DOH approved. Specimen Required Patient Preparation: Collect: Serum separator tube. Specimen Preparation: Transfer 0.5 mL serum to a Standard Transport Tube. (Min: 0.3 mL) Also acceptable: Heparinized plasma. Storage/Transport Temperature: Refrigerated. Unacceptable Conditions: EDTA plasma. Grossly hemolyzed or lipemic specimens. Remarks: Stability: After separation from cells: Ambient: 8 hours; Refrigerated: 1 week; Frozen: 6 months Reference Interval 0.0 - 4.0 IU/mL Interpretive Data A value of 4.0 IU/mL or less indicates a negative result for thyroglobulin antibodies. The Thyroglobulin Antibody assay is being performed using the Beckman Coulter Access Dxl method. Compliance Category: FDA Note CPT Code 86800 Components Component Chart Name Thyroglobulin Antibody Component Test Code 0050105 LOINC 8098-6 Aliases ANTI-THYROGLOBULIN ANTIBODY THYROGLOBULIN ANTIBODY

Ordering information regarding a Myeloperoxidase (MPO) Antibody test for Clinical Diagnostic Laboratories. Myeloperoxidase (MPO) Antibody Ordering Recommendation When used in conjunction with other autoantibody tests (ANCA, PR3), may aid in evaluating suspected immune-mediated vasculitis, especially microscopic polyangiitis (MPA). May be useful to monitor MPA disease and/or treatment response. Panel tests are available. For the workup of suspected vasculitis, refer to ANCA-Associated Vasculitis Profile (ANCA/MPO/PR3) (3003745 ). For patients with a history of vasculitis, refer to Myeloperoxidase (MPO) Antibody and Serine Proteinase 3 (PR3) Antibody with Reflex to Anti-Neutrophil Cytoplasmic Antibody, IgG by IFA (3003746 ). Mnemonic MPO-AB Performed Mon-Sat Methodology Semi-Quantitative Multiplex Bead Assay Reported 1-3 Days New York DOH Approval Status This test is New York DOH approved. Specimen Required Patient Preparation: Collect: Serum separator tube. Specimen Preparation: Separate serum from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to a Standard Transport Tube. (Min: 0.2 mL) Storage/Transport Temperature: Refrigerated. Unacceptable Conditions: Plasma, urine, or other body fluids. Contaminated, hemolyzed, or severely lipemic specimens., icteric, or lipemic specimens. Remarks: Stability: After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles) Reference Interval 19 AU/mL or less Negative 20-25 AU/mL 26 AU/mL or greater Equivocal Positive Interpretive Data Approximately 90% of patients with a P-ANCA pattern by IFA have antibodies specific for MPO. Compliance Category: FDA Note CPT Code 83516 Components Component Chart Name Myeloperoxidase (MPO) Ab, IgG Component Test Code 0050526 LOINC 6969-0 Aliases MPO MPO Ab PR3