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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

Glomerular Basement Membrane Antibody, IgG (IFA) Ordering Recommendation May be useful in detecting glomerular basement membrane (GBM) antibodies. Combined use of IFA Glomerular Basement Membrane Antibody, IgG by Multiplex Bead Assay and IFA (2008403 ) may improve diagnostic sensitivity for disease. If positive, may be useful for monitoring treatment response. Mnemonic GBM-G IFA Performed Mon-Sat Methodology Indirect Fluorescent Antibody 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. Transport 1 mL serum. (Min: 0.5 mL) Storage/Transport Temperature: Refrigerated. Unacceptable Conditions: Remarks: Stability: After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles) Reference Interval Negative Interpretive Data When present, IgG antibody to glomerular basement membrane (GBM) antigen detected by either indirect fluorescent antibody (IFA) or multiplex bead assay helps support a diagnosis of Goodpasture syndrome. However, the combined result of both assays performed during initial evaluation improves the diagnostic sensitivity for disease. A positive result in one or both assays should be confirmed by renal biopsy. This test was developed and its performance characteristics were determined by CDL. It has not been cleared or approved by the US Food and Drug Administration. This test was performed in a CLIA certified laboratory and is intended for clinical purposes. Compliance Category: FDA Note CPT Code 86255 Components Component Chart Name GBM Antibody, IgG by IFA Component Test Code 0049191 LOINC 29994-1 Aliases Anti-GBM Antibody Anti-Glomerular Basement Membrane Antibody GBM IgG IFA

Allergen, Food, Whole Egg, IgG Ordering Recommendation Not recommended for initial thyroid disorders testing. Distinguish thyroid autoimmune disorders from nonautoimmune disease or hypothyroidism. Mnemonic EGGWHOLE Methodology Quantitative ImmunoCAP Fluorescent Enzyme Immunoassay Performed Mon-Sat Reported 1-8 days New York DOH Approval Status This test is New York DOH approved. Specimen Required Patient Preparation: Collect: Serum separator tube (SST). Specimen Preparation: Separate serum from cells ASAP or within 2 hours of collection. Storage/Transport Temperature: Refrigerated. Unacceptable Conditions: Hemolyzed, icteric, or lipemic specimens. Remarks: Stability: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year Reference Interval Less than 30.21 mcg/mL Interpretive Data Values less than 2.00 mcg/mL represent absent or undetectable levels of allergen-specific IgG antibody. This test has not been cleared or approved by the US Food and Drug Administration. This test was performed in a CLIA certified laboratory and is intended for clinical purposes. Compliance Category: FDA Note CPT Code 86001 Components Component Chart Name Allergen, Food, Whole Egg IgG Component Test Code 2011820 LOINC 45201-1 Aliases

About Clinical Diagnostic Laboratories Our main goal is to provide an alternative testing facility for individuals: doctors, as well as hospitals that are 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. Schedule An Appointment Commemorated as Local Heroes to the Community Throughout the years, Clinical Diagnostic Laboratories has worked extensively to provide testing and our services to organizations and government officials regularly to maintain a safe environment for everyone. During the peak of the COVID-19 Pandemic, Clinical Diagnostic Laboratories provided additional assistance to help guarantee the safety of the community. Due to their efforts, they were awarded by Fairfax County with the Community Hero Award. You can read more using the button below. Read More Here One of the Best at What We Do! We help medical facilities, individual patients, large companies, and organizations. Below are a few of the groups we’ve partnered with. View Our Capability Statement What Others Say About Us For over 5 years, our facility has continued to provide excellent, quality service to many patients. Here’s what they say about us and our laboratory. Leave a Review

PARTICIPATING INSURANCE COMPANIES Clinical Diagnostics Laboratories will file all claims with the below-listed insurance companies. The list below is not a complete list of Health plans with which CDL participates and is subject to change over time. There may be exceptions in certain areas or for certain members or plans. If you have any questions or do not see your insurance company listed here, please contact us. AARP Adventist HealthCare Aetna (PPO) American Postal Workers Union (APWU) AmeriGroup Health AmeriHealth Anthem Assurant Health Beechstreet Benefit Plan Administrators VA Blue Cross Blue Shield of VA PPO, KeyCare, Cova, Medicare Advantage PPO Anthem Blue Cross (PPO, Medicare PPO)Blue Cross Blue Shield of West VA BRMS Capital Blue Cross (PPO Only) Care Improvement Plus-United Health CareFirst BCBS CareLink CareNet Celtic Insurance ChoiceCare Cigna (Multiplan) Cofinity Compass Rose Conifer Health Solution CoreSource Corvel Coventry National PPO Emblem Health (PPO Only) Empire BCBS (PPO Only) Federal and State Benefit Health Plans FEHBP FedMed Inc First Health National PPO Network Fortis Insurance -Assurant Galaxy Health Network GEHA-(First Health) Geisinger Health Great West HealthAmerica HealthPartners Network HealthScope Services HealthSmart Preferred Networks Highmark BCBS (PPO Only) Horizon BCBS (PPO Only) Humana (All Plans) InterPlan Health Group-HealthSmart John Alden Insurance -Assurant Johns Hopkins Healthcare MagnaCare Mail Handlers Benefit Plan Maryland Physicians Care (MPC) MedCost (NovaNet) Medical Mutual Meritain Health Multiplan National Network NALC- Cigna, Multiplan National Capital PPO, Health Link National Care Network NCN National Claims Administrative Services (NCAS) NovaNet PPO OneNet PPO (United Health Care) Optima Health Network-Valley Health Net Paramount Health Care PayerFusion POMCO Prime Health Services Private Healthcare (PMCS) Pyramid Life Insurance Company Riverside Health(Maryland HealthChoice) Ryan White HIV/Aids Program ​ SAMBA FEP StarMark Insurance Stratrose PPO, NPPN SummaCare PPO (Multiplan, PHCS) SuperMed PPO-1st Medical The Health Plan Three Rivers Provider Network Unicare UnitedHealthcare Virginia Health Network-MedCost Ultra, VHN Plus USA MCO Government Health Plans Medicaid VA, MD, and DC Medicare Advantage PPO Medicare Supplement Railroad Medicare Traditional Medicare Tricare Health Net Federal Services Humana Military TriCare for Life TriWest SCHEDULE AN APPOINTMENT 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.

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

Lipid Panel Ordering Recommendation Use to assess cardiovascular disease risk and guide therapy. Mnemonic Methodology Quantitative Enzymatic Assay Performed Mon-Sat Reported Within 24 hours New York DOH Approval Status This test is New York DOH approved. Specimen Required Patient Preparation: Refer to individual components. 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. Transfer 1 mL serum or plasma to a standard transport tube. (Min: 0.5 mL) Storage/Transport Temperature: Refrigerated Unacceptable Conditions: Body fluid (refer to Cholesterol, Fluid; Triglycerides, Fluid; and Chylomicron Screen, Body Fluid). Remarks: Stability: After separation from cells: Ambient: 24 hours; Refrigerated: 7 days; Frozen: 3 months Reference Interval Interpretive Data An HDL cholesterol less than 40 mg/dL is low and constitutes a coronary heart disease risk factor. An HDL cholesterol greater than 60 mg/dL is a negative risk factor for coronary heart disease. Non-HDL cholesterol is a secondary target of therapy in persons with high serum triglycerides (greater than 199 mg/dL). The goal for non-HDL cholesterol in persons with high triglycerides is 30 mg/dL higher than their LDL cholesterol goal. CHD Risk Factors +1 Men, 45 years and older +1 Women, 55 years and older or premature menopause without estrogen therapy +1 Family history of premature CHD +1 Current smoking +1 Hypertension +1 Diabetes mellitus +1 Low HDL cholesterol: 39 mg/dL or less -1 High HDL cholesterol: 60 mg/dL or greater Desirable Adult Values Higher Risk Borderline Total Cholestorol Triglycerides 199 mg/dL or less 149 mg/dL or less 200-239 mg/dL 150-199 mg/dL 240 mg/dL or greater 200-499 mg/dL HDL Cholestorol LDL Cholesterol (calculated) 40 mg/dL or greater 129 mg/dL or less (99 mg/dL or less if patient has CHD) 39 mg/dL or less 130-159 mg/dL 160 mg/dL or greater VLDL Cholesterol (calculated) 30 mg/dL or less Desirable Children & Adolescents Higher Risk Borderline Total Cholestorol 169 mg/dL or less 170-199 mg/dL Triglycerides 149 mg/dL or less 150-199 mg/dL HDL Cholestorol LDL Cholesterol (calculated) 40 mg/dL or greater 109 mg/dL or less 110-129 mg/dL VLDL Cholesterol (calculated) 30 mg/dL or less 200 mg/dL or greater 200-499 mg/dL 39 mg/dL or less 130 mg/dL or greater Note CPT Code 80061 Components Component Test Code 0020031 0020040 0020051 0020053 0020551 0020705 0020008 0020023 0020024 0020025 0020027 0020029 0020030 0020032 0020396 3004293 Component Chart Name Sodium, Serum or Plasma Potassium, Serum or Plasma Chloride, Serum or Plasma Carbon Dioxide, Serum or Plasma Alkaline Phosphatase Aspartate Aminotransferase Alanine Aminotransferase Urea Nitrogen, Serum or Plasma Glucose, Serum or Plasma Creatinine, Serum or Plasma Calcium, Serum or Plasma Protein Total, Serum/Plasma Albumin, Serum or Plasma Bilirubin, Total, Serum or Plasma Anion Gap UH EGFR LOINC 2951-2 2823-3 2075-0 2028-9 6768-6 1920-8 1742-6 3094-0 2345-7 2160-0 17861-6 2885-2 1751-7 1975-2 33037-3 Aliases ​ACPA Antibody ​Anti Citrulline Anti-CCP C12 Chem 12 Chemistry Panel Chemistry Screen CMP SMA 12 SMA 20 SMAC ​ ​ ​

What to Expect Clinical Diagnostics Laboratories (CDL) will make your specimen collection process safe, quick, and as comfortable as possible. We will also make sure to safeguard your privacy and will be treated with the utmost care and dignity. ​ While walk-ins to our lab are welcome during the week, we highly recommend scheduling an appointment if you are pressed for time or if you will require blood work. Weekends are by appointment only. When Visiting the Lab You Should Bring the Following: If you are paying out of pocket fo r a lab, then a lab request is not necessary to have from your doctor but if you are planning on submitting it to your insurance please bring the lab request from your doctor's office, or ask your doctor to email to us prior to your appointment. ✔️ A current insurance identification car d, (Medicare, Private Insurance, or HMO/PPO) ✔️A photo Id (Drivers License or employee identification badge) ✔️A health spending card, personal check, cash, or mobile PayPal account. ​ ​ ​ ​ ​ ​ Our Process as a Patient at O ur Facility: ​ ​ View Accepted Insurance 01 Schedule An Appointment 02 On the date and time of your appointment, we'll take your doctor's order and make a copy of your ID and Insurance. We'll also have you sign a consent form during this time 03 Once your information is copied, the proper items for your test will be prepared. This typically takes about 5-10 minutes depending on the test being performed. 04 Meet with the nurse for your test. This process typically takes around 5-10 minutes. 05 Once you finish your test, your results will be delivered to your doctor if you provided an order. If you did not provide an order, the results will be sent as a PDF file to your email address. Results typically take 3-10 days depending on the test perfofrmed. For more information on how long your test might take, please conact us. Schedule An Appointment

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

Cardiolipin Antibody, IgG Ordering Recommendation Acceptable initial test when antiphospholipid syndrome (APS) is strongly suspected. Order with Lupus Anticoagulant Reflexive Panel (0030181 ) and Beta-2 Glycoprotein 1 Antibodies, IgG and IgM (0050321 ). Cardiolipin Antibodies, IgG and IgM (0099344 ) is preferred. Mnemonic AC-IGG Performed Mon-Sat Methodology Semi-Quantitative Enzyme-Linked Immunosorbent Assay Reported 1-2 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: 0.3 mL) Storage/Transport Temperature: Refrigerated. Unacceptable Conditions: Plasma or other body fluids. Contaminated, heat-inactivated, hemolyzed, or lipemic specimens. Remarks: Stability: After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year Reference Interval <=14 GPL Negative ​ 15-19 GPL Indeterminate 20-80 GPL Low to Moderately Positive 81 GPL or above High Positive Interpretive Data Anti-mitochondrial antibodies (AMA) are thought to be present in 90-95% of patients with primary biliary cholangitis (PBC). However, the frequency of detected antibodies may be cohort or assay dependent, as lower sensitivities have been reported. Not all PBC patients are positive for AMA; some patients may be positive for SP100 and/or GP210 antibodies. A negative result does not rule out PBC. Compliance Category: FDA Note CPT Code 86381 Components Component Chart Name Cardiolipin Antibody IgG Component Test Code 0050901 LOINC 3181-5 Aliases ACA aCL aCL Antibody aCL IgG Anti-Cardiolipin Anticardiolipin Anticardiolipin Antibodies Cardiolip