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Frequently asked questions 01 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. 02 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. 03 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. 04 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. 05 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. 06 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. 07 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. 08 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. 09 Are you Available for Walk-Ins or Do I Need to Schedule an Appointment? You are not required to schedule an appointment at our facility. We are available for walk-ins during the weekdays during our standard operating hours. However, we do recommend patients schedule appointments (https://cdlcovid.as.me/schedule.php?owner=19300484&)ahead of time, contact us via our email form, or call in advance to verify the availability of a Phlebotomist (if bloodwork is required). 10 How Long Does it Take to Receive my Lab Results? The turnaround time of a test varies depending on the test(s) being administered. Typically, a test will take around 24-72 hours. We recommend contacting us ahead of time for more details based on the specific test being administered. 11 I received my results but I'm having trouble opening them Results sent directly to your email will typically be password protected for your security. Passwords will be the Date of Birth of the patient in the following order: (Year/Month/Day). For example, if you're Date of Birth is January 31, 1980 your password will be the following: [1980/01/31] 12 How Will My Results be Delivered? If you provided a doctor's order/referral your results will be sent over directly to your referring physician. You can contact your physician directly for the results of your test (if they did not already contact you). If an order was not provided, you will receive your results via email. Your results will be delivered as a password protected PDF file. 13 How Long Does it Take to Receive COVID test results? The standard turnaround time for PCR-COVID test results is 24 hours. 14 What types of tests do you offer? We offer a wide variety of medical tests including, but not limited to, H.Pylori, Drug screenings, STD testing, COVID, FLU, standard blood panels, and far more. Please contact us for more information. 15 Are Children Permitted to Take a COVID test? Yes, children can take the PCR-Covid test. The cost of the test is the same for children. 16 Are there other options besides a Nasal Swab for the PCR-COVID test? The most effective method of testing for the COVID-19 Coronavirus is via a Nasopharyngeal swab. A cheek or throat swab can also be performed at the request of a physician; however, either of these methods can be inaccurate and may result in an inconclusive lab result. 17 What is the Difference Between a Rapid Test and a PCR test? The Rapid test (https://www.cdc.gov/coronavirus/2019-ncov/lab/resources/antigen-tests-guidelines.html)(also known as the Antigen test) offers a fast turnaround time but is best used on patients showing symptoms. However, the rapid test results tend to be inaccurate when compared to the RT-PCR test. One can expect the results of a Rapid Test within 15 minutes. The RT-PCR (https://www.cdc.gov/coronavirus/2019-ncov/lab/resources/sars-cov2-testing-strategies.html)(Polymerase Chain Reaction) test is considered the “Golden Standard” with regards to COVID tests. The PCR test is considered the more accurate version when testing for the COVID-19 virus. 18 Do I Need to Pick Up my Results in Person? While you may pick up results in person, the delivered lab results will be sent to your physician directly either through their portal or via fax. If an order was not provided, results will be sent to the email address provided when you schedule an appointment. 19 How do I Access my lab Results? If you came with a doctor’s order, Clinical Diagnostic Laboratories (CDL) will fax your lab results to your doctor’s office. We will also try to email results in a timely manner. However, if you do not receive your results after the given time frame, please follow up with CDL by emailing us at info@clinicaldiagnosticlab.com or call us at 703-430-1111. The email will be from labreport@clinicaldiagnosticlab.com*. Your date of birth in the format ‘YYYYMMDD’ is your password to be used to open this report. *Note: Always check your spam/junk mail if you have not received your results in your standard inbox! **The easiest method of finding your results is to type the email address “labreport@clinicaldiagnosticlab.com” in your email’s search bar as results are often difficult to find when sent to the spam/junk folder.

Ordering information regarding a T- Uptake test for Clinical Diagnostic Laboratories. Thyroxine, Free (Free T4) Ordering Recommendation The preferred alternative to this test is Thyroxine, Free (Free T4) 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 plasma separator tube. Also acceptable: Green (lithium heparin), lavender Specimen Preparation: Allow specimen to clot completely at room temperature. Separate serum or plasma from cells ASAP or within 2 hours of collection. Storage/Transport Temperature: Refrigerated. Unacceptable Conditions: Grossly hemolyzed specimens. Remarks: Stability: After separation of cells: Ambient: 8 days; Refrigerated: 2 weeks; Frozen: 2 years Reference Interval Free Thyroxine, ng/dL 0-3 days 0.7-2.7 ng/dL 4-30 days 0.8-3.1 ng/dL 1-23 months 2-6 years 0.5-2.3 ng/dL 0.9-1.8 ng/dL 7-11 years 0.9-1.7 ng/dL 12-19 years 12-19 years 0.9-1.6 ng/dL 0.9-1.6 ng/dL 20 years and older 0.9-1.7 ng/dL Pregnancy, 1st Trimester 0.9-1.4 ng/dL Pregnancy, 2nd Trimester 0.7-1.3 ng/dL Interpretive Data Thyroxine, Free (Free T4) is the preferred test alternative for T Uptake and Free Thyroxine Index tests. Note CPT Code 84439 Components Component Test Code Component Chart Name LOINC 0070138 Thyroxine Free 3024-7 Aliases Free Thyroxine FT4, Serum Non-Protein Bound Tetraiodothyronine T4 Free, Serum T4, Free Thyroid Function Cascade

The product page for the Complete STD Panel for Clinical Diagnostic Laboratories. Complete STD Panel Your health, your peace of mind. This discreet, comprehensive panel screens for the most common and impactful sexually transmitted infections — all with a single visit and no doctor’s referral required. Whether it’s for routine peace of mind, a new relationship, or symptom concerns, this test gives you fast, accurate answers. Here’s what it checks — and why it matters: GC/CT – Screens for Gonorrhea and Chlamydia, two of the most common STDs that can often go unnoticed without symptoms. HIV – Detects Human Immunodeficiency Virus, which affects immune health if left untreated. Hepatitis B Surface Antigen (Hep BsAg) – Checks for active Hepatitis B, a virus that can cause long-term liver damage. Hepatitis C (HCV) – Screens for Hepatitis C, another virus that affects the liver and may be asymptomatic for years. RPR – Tests for Syphilis, a bacterial infection that can lead to serious health issues if untreated Confidential, accurate, and fast — results delivered securely within days. Take control of your health and get tested with confidence. $285.00 Taxes will be calculated at checkout Buy Now

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 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 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

If you're a physician, use this page to access your portal with Clinical Diagnostic Laboratories. Click Here CLICK HERE Physician Registration Are you a physician that would like to work with our laboratory? Click here to register an account with us. View More Click Here CLICK HERE Physician Login If you're a physician currently working with us, click here to login. View More Contact Us

The product page for the men's health panel at Clinical Diagnostic Laboratories. Men's Health Panel Take charge of your health with this comprehensive blood test panel designed specifically for men. Whether you're focused on energy levels, heart health, hormone balance, or just getting a clearer picture of your overall wellness, this panel covers the essentials. Here’s what it checks — and why it matters: Complete Blood Count (CBC) – Measures your white and red blood cells to detect signs of infection, fatigue, or anemia. Comprehensive Metabolic Panel (CMP) – Evaluates your liver and kidney function, electrolytes, and blood sugar levels. Lipid Panel – Checks your cholesterol, including “good” (HDL) and “bad” (LDL) cholesterol, to assess your heart disease risk. Testosterone, Total – Measures your testosterone levels, which impact energy, muscle mass, mood, and sexual health. PSA, Total – Screens for signs of prostate issues, which is especially important as men age. Recommended for men over 50. Hemoglobin A1C – Provides a long-term view of your blood sugar levels to check for prediabetes or diabetes. Vitamin B12 – Plays a crucial role in the formation of red blood cells, the synthesis of DNA, and the maintenance of nerve cells. TSH (Thyroid-Stimulating Hormone) – Helps detect thyroid issues that can affect metabolism, weight, and energy. With just one visit to our lab, you’ll gain valuable insight into your health — without needing a doctor’s referral or insurance. $241.00 Taxes will be calculated at checkout Buy Now

Ordering information regarding a Erythrocyte Sedimentation Rate test for Clinical Diagnostic Laboratories. Erythrocyte Sedimentation Rate (ESR) Ordering Recommendation Methodology The ESR test measures the rate at which red blood cells (erythrocytes) settle at the bottom of a test tube over a period of one hour. Inflammation causes red blood cells to clump together, making them heavier and causing them to fall more quickly1. The distance the red blood cells fall is measured and reported as the ESR. Performed Mon-Sat Reported Within 24 hours New York DOH Approval Status This test is New York DOH approved. Specimen Required Patient Preparation: Collect: Purple top tube 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: Unacceptable Conditions: Remarks: Stability: Reference Interval Components Available Separately Reference Interval By report (reports may vary based on instrumentation) Interpretive Data Note CPT Code 80048 Components Component Test Code Component Chart Name LOINC Aliases

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