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We Provide Services for a Wide Variety of Companies and Organizations At our Medical Laboratory, we offer comprehensive services for companies and organizations. We provide a wide variety of medical testing, including drug screening for new employees, blood tests, and COVID or FLU testing for travel purposes. Our highly experienced team is capable of accommodating large groups efficiently and effectively. Contact us today for more information Contact Us Learn More Learn More Learn More Learn More Services for Life Insurance Companies Learn More Services for Government Agencies Learn More Services for Employer Solutions Learn More Services for Employer Solutions Learn More

Ordering information regarding a T4 Total test for Clinical Diagnostic Laboratories. Thyroxine, Total T4 (Total T4) Ordering Recommendation Preferred test for initial screening and monitoring of thyroid function. Methodology Quantitative Electrochemiluminescent Immunoassay (ECLIA) Performed Mon-Sat Reported Within 24 hours New York DOH Approval Status This test is New York DOH approved. Specimen Required Patient Preparation: Collect: Serum separator tube or green (lithium heparin). Also acceptable: lavender Specimen Preparation: Separate serum or plasma from cells ASAP or within 2 hours of collection. Allow serum specimen to clot completely at room temperature. Storage/Transport Temperature: Refrigerated. Unacceptable Conditions: Grossly hemolyzed specimens. Remarks: Stability: After separation from cells: Ambient: 4 days; Refrigerated: 8 days; Frozen: 1 year Reference Interval Components Available Separately Reference Interval Thyroxine, Total T4 Cord Blood 6.60-17.50 ug/dL 0-3 days 5.37-22.40 ug/dL 4-30 days 5.24-23.20 ug/dL 1-23 months 5.37-16.00 ug/dL 2-6 years 5.26-14.80 ug/dL 7-11 years 5.70-14.10 ug/dL 12-19 years 4.74-14.60 ug/dL 20 years and older 4.50-11.70 ug/dL Interpretive Data Note CPT Code 84436 Components Component Test Code Component Chart Name LOINC 3005980 Thyroxine, Total T4 3026-2 Aliases Syn-Thyroid T4 T4 Serum T4 Total Only Tetraiodothyronine Thyroid Hormone Thyroxine (T4) Total T4

Purchase a laboratory panel that will make staying healthy, easy. No insurance required. No doctor order needed. And the results are provided quickly. Explore Our Tests HPV Self-Collection Test $75.00 Screens for high-risk HPV types linked to cervical cancer* Helps detect infection before symptoms appear* Designed for women 25+, prioritizing routine cervical health No referral or insurance required — discreet and direct access Results delivered securely within 2–5 business days A proactive step in protecting long-term reproductive health* Buy Now *This panel is not intended to diagnose, treat, cure, or prevent any disease. Always consult a healthcare provider for clinical follow-up. Women's Health Panel This panel supports hormone, thyroid, and nutrient balance—ideal for women experiencing fatigue, mood changes, or irregular cycles. It’s a simple, proactive way to monitor your health and feel your best, with easy-to-read results delivered securely in just a few days. $263.50 Buy Now Diabetes and Heart Health Panel This panel checks your long-term blood sugar levels and key cholesterol markers to help assess your risk for diabetes and heart disease. $139.00 Buy Now Complete Food Allergy Scan This test screens for common food and environmental allergens to help identify potential triggers behind skin, breathing, or digestive issues. With just a simple blood draw, you’ll gain clear insights to better manage allergies and improve your daily comfort. $155.00 Buy Now Complete STD Panel This panel tests for common STIs like chlamydia, gonorrhea, syphilis, and HIV using a quick blood sample collected at our lab—no swabs or mail-in kits required. It’s a confidential, hassle-free way to check your status for routine screenings, new relationships, or peace of mind. $285.00 Buy Now Women's Fertility Panel Our Women’s Fertility Panel offers a comprehensive look at the hormones and markers that influence reproductive health and ovulation. It’s ideal for those planning for pregnancy or wanting clarity about their cycle—no doctor’s order or insurance needed. To learn more, contact us using the button below. Contact Us Complete Respiratory Allergy Scan This test screens for common environmental allergens like pollen, pet dander, mold, and dust mites that may cause sneezing, congestion, or asthma-like symptoms. It’s performed with a simple blood draw and helps you identify triggers so you can breathe easier year-round. $288.00 Buy Now Men's General Health Panel This panel evaluates testosterone, cholesterol, blood sugar, and key nutrients like Vitamin D and B12 to give a clear picture of men’s energy, mood, heart health, and overall wellness. It's an easy, comprehensive way to stay on top of your health and performance. $241.00 Buy Now Cholesterol Test This comprehensive cholesterol test measures key heart health markers including HDL, LDL, triglycerides, total cholesterol, and Lipoprotein(a). It helps assess your risk for heart disease and provides a clear snapshot of your overall cardiovascular health. $95.00 Buy Now Men's Fertility Panel This panel includes a semen analysis to evaluate sperm count, movement, and overall quality—key factors that impact male fertility. It’s a simple, private test performed at our lab to help you take the first step in understanding your fertility status $85.00 Buy Now One-Day Fecal Immunochemical Test The InSure® ONE Fecal Immunochemical Test (FIT) is a simple, at-home screening that checks for hidden blood in your stool — an early warning sign of colon cancer or polyps. This one-day test makes it easy to stay proactive about your colorectal health. The kit can be mailed to you and a prepaid return envelope will be included. $35.50 Buy Now Frequently asked questions Online Tests - FAQs Do I need to schedule an appointment if I purchase the test online? Yes — once you place your order, you'll be prompted to schedule an appointment at one of our laboratory locations. Walk-ins are not permitted for prepaid panels to ensure proper time is set aside for your visit. Will I receive a kit in the mail? No — there is no kit mailed to your home. All testing is performed in our certified laboratory. After purchasing your panel, you'll simply come in for your scheduled blood draw. Do I need to bring anything to my appointment? Just bring a valid photo ID and your email confirmation. There’s no insurance information needed — we’ve already got you in the system. Do I need a doctor’s referral to order a test? Not at all. Our panels are available without a referral, prescription, or insurance. That’s part of what makes this process simple and accessible. How will I receive my results? Results are delivered securely via email in PDF format within 2–5 business days. You’ll be notified as soon as they’re ready. Can I use my HSA or FSA card? Yes — many patients successfully use HSA/FSA cards at checkout. Be sure to check with your plan provider for eligibility. Can I get reimbursed by my insurance? Yes — depending on your insurance policy, you may be eligible for reimbursement by submitting your receipt directly to your provider. However, reimbursement is not guaranteed. Some insurance plans do not cover specific tests or may require additional documentation before testing. We strongly recommend contacting your insurance provider in advance to understand your options, if you wish to be reimbursed. Is there a cancellation fee? Yes — if you cancel your order after purchasing online, a small cancellation fee of 3.4% will be applied to cover non-refundable transaction processing costs.

Services for Life Insurance Companies We Care About Your Applicants Clinical Diagnostics Laboratories cares about your applicants and their goal to acquire life insurance. We promise to provide your life insurance applicants with professional laboratory testing to assist in their application process that is done with dignity. We provide laboratory testing using state-of-the-art testing equipment. With the ability to gain results in 24hrs with easy scheduling options . Our highly skilled professionals are on standby to treat your applicants with the highest degree of care and efficiency. Click here today to get started. Contact Us

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

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

Learn why our practice no longer accepts PPO insurance or Anthem HealthKeepers, what this change means for your care, and how we continue to prioritize accessible, patient‑focused treatment. Dear Valued Patient, We understand that navigating lab testing and insurance coverage can be confusing, stressful, and sometimes frustrating. Many patients expect that medically necessary lab tests will be fully covered by their insurance, only to be surprised by bills or claim denials. We want to take a moment to explain why this happens, and what options are available to you. Why Insurance Coverage Can Be Complicated Insurance companies often control which laboratories they will reimburse, and many have exclusive agreements with specific “preferred” labs. Even if your doctor orders a test that is medically necessary and has a preferred laboratory they wish to send it to, insurance may refuse to pay if the lab performing it is not on the insurer’s approved list. In addition: Claims can be denied for administrative reasons, not because the test lacks medical necessity. In 2023, studies showed that nearly 1 in 5 claims across commercial plans were denied, with out-of-network labs denied more than one-third of the time. Negotiated rates may not reflect the true cost of testing, leaving smaller or independent labs out-of-network and limiting patient choice. Large insurers sometimes rely on high-volume national labs (like LabCorp or Quest), which must process thousands of samples and often face delays, lost specimens, or reporting outside the necessary timeframe . “Insurance networks and claim rules can make testing feel more like a barrier than a service. That’s why we focus on transparency and patient choice.” Your Options: Affordable, Transparent Self-Pay To make testing accessible and predictable, we offer affordable self-pay pricing. Because all of our testing is performed in-house, locally, we can provide: Lower prices than national lab chains Faster turnaround times Greater accuracy and reliability If you choose to pay out-of-pocket, we will provide a superbill containing everything your insurance company needs to process a claim. This includes: CPT codes for all tests performed Diagnosis codes Our provider identifiers (NPIs) Itemized charges and documentation We are happy to assist you with any additional paperwork or information your insurer may request. Even if the claim is initially denied, we can provide supporting documentation to help you appeal. “We want you to have control over your care — and the ability to submit claims to your insurance if you wish.” Why Our Lab is Different Unlike large national laboratories: Everything is processed locally, in-house, giving us control over quality and timing We avoid unnecessary shipping, which reduces risk of lost or misreported samples Our focus is on patient-centered service, not volume This means you get your results faster, accurately, and at a fraction of the cost. We Are Here to Help We understand this situation is not your fault, and it’s not your choice. Insurance networks, coverage rules, and reimbursement policies are complex — even for providers. Our commitment is simple: Provide high-quality testing you can trust Offer transparent, affordable pricing Support you in navigating insurance reimbursement whenever possible “With self-pay options and superbill support, you can access the testing you need without unnecessary delays or surprises.” Take Action Today We make it simple to access testing services on your terms: If you have questions or need guidance about insurance or billing, please contact our team — we are happy to walk you through every step. With care, The Team at Clinical Diagnostic Laboratories The Team at Clinical Diagnostic Laboratories View Our Self Pay Options >

Ordering information regarding a Comprehensive Metabolic Panel test for Clinical Diagnostic Laboratories. Comprehensive Metabolic Panel Ordering Recommendation Mnemonic Methodology Quantitative Ion-Selective Electrode/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: Serum separator tube (SST). Specimen Preparation: Protect from light. Allow serum tube to clot completely at room temperature. Separate serum or plasma from cells ASAP or within 30 minutes of collection. Transfer 1 mL serum or plasma to an Amber Transport Tube. (Min: 0.5 mL) Storage/Transport Temperature: Refrigerated Unacceptable Conditions: EDTA, citrate, oxalate, or sodium fluoride/potassium oxalate. Remarks: Stability: After separation from cells: Ambient: Calcium and CO2: 4 hours, All others: 24 hours; Refrigerated: 1 week; Frozen: 2 weeksated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles) Reference Interval 19 Units or less 20-39 Units Negative Weak Positive 40-59 Units Moderate Positive 60 Units or Greater Strong Positive Interpretive Data Note Tests included in this panel: Albumin, Serum or Plasma (0020030), Alkaline Phosphatase, Serum or Plasma (0020005), Aspartate Aminotransferase, Serum or Plasma (0020007), Alanine Aminotransferase, Serum or Plasma (0020008), Bilirubin, Total, Serum or Plasma (0020032), Calcium, Serum or Plasma (0020027), Carbon Dioxide, Serum or Plasma (0020004), Creatinine, Serum or Plasma (0020025), Chloride, Serum or Plasma (0020003), Glucose, Serum or Plasma (0020024), Potassium, Plasma or Serum (0020002), Protein, Total, Plasma or Serum (0020029), Sodium, Plasma or Serum (0020001), and Urea Nitrogen, Plasma or Serum (0020023). CPT Code 80053 Components Component Chart Name Component Test Code LOINC Sodium, Serum or Plasma 0020001 2951-2 0020002 Potassium, Serum or Plasma 2823-3 0020003 0020004 Chloride, Serum or Plasma 2075-0 Carbon Dioxide, Serum or Plasma 2028-9 0020005 0020007 Alkaline Phosphatase 6768-6 Aspartate Aminotransferase 1920-8 0020008 0020023 Alanine Aminotransferase 1742-6 Urea Nitrogen, Serum or Plasma 0020024 0020025 3094-0 Glucose, Serum or Plasma Creatinine, Serum or Plasma 2345-7 2160-0 0020027 0020029 Calcium, Serum or Plasma Protein Total, Serum/Plasma 17861-6 2885-2 0020030 0020032 Albumin, Serum or Plasma Bilirubin, Total, Serum or Plasma 1751-7 1975-2 0020396 3004293 Anion Gap UH EGFR 33037-3 Aliases ACPA Antibody Anti Citrulline Anti-CCP C12 Chem 12 Chemistry Panel Chemistry Screen CMP SMA 12 SMA 20 SMAC

Purchase a pre-built laboratory panel to maintain your health and vitality without the hassle of insurance, a doctor's order, or unreasonable costs. Affordable Lab Testing - No Doctor Required Get the bloodwork you need, when you need it — without insurance, referrals, or hidden fees. Shop Our Panels How Does it Work? At Clinical Diagnostic Laboratories, we understand how frustrating affordable healthcare can be. Between insurance delays, surprise bills, medical jargon, and waiting weeks for lab results, it’s no wonder people avoid getting the tests they need. That’s why we’ve built a simple, self-pay solution — no referrals, no insurance, no hassle. No doctor's order or referral needed No insurance required - ever! Transparent pricing with no surprise bills Skip the copays, deductible, and delays Schedule your appointment after purchase - no walk-ins, no crowds Fast, accurate results from a CLIA-certified lab Perfect for wellness tracking, hormone balance, STD screening, and more! Designed for busy professionals, self-pay patients, and the health-conscious Simple online ordering in minutes Shop Our Panels What To Expect 1. Choose a Pre-Built Test Panel We've designed targeted panels to address common concerns like fatigue, hormone imbalance, STD screening, and more - no guesswork required. 3. Schedule Your Lab Visit After purchase, you'll receive a link to schedule your appointment at our local lab. No walk-ins for pre-ordered tests means no waiting rooms. 2. Pay Securely Online Flat-rate pricing with no hidden fees. No copays, deductibles, or confusing insurance claims to worry about. 4. Get Results in 2-5 Days Most test results are delivered straight to your inbox as a secure, easy-to-read PDF. Shop Our Panels At Clinical Diagnostic Laboratories, your personal health information is kept strictly confidential. We follow all HIPAA guidelines to ensure your data is secure, your test results are private, and your experience is handled with the highest level of discretion. Your information will never be shared without your explicit consent.

The product page for the Diabetes Panel for Clinical Diagnostic Laboratories. Diabetes and Heart Health Panel A powerful combo panel to evaluate your blood sugar control and cardiovascular risk: Hemoglobin A1c – Measures your average blood sugar levels over the past 2–3 months. Total Cholesterol – Gives an overall picture of your blood cholesterol. HDL ("Good") Cholesterol – Helps protect your heart by removing bad cholesterol. LDL ("Bad") Cholesterol – High levels are linked to increased heart disease risk. Triglycerides – Elevated levels can signal a higher risk of diabetes and heart disease. HDL % of Total Cholesterol – Indicates the balance between good and total cholesterol. $139.00 Taxes will be calculated at checkout Buy Now