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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 Cardiolipin Antibody, IgG test for Clinical Diagnostic Laboratories. 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

Ordering information regarding a Cardiolipin Antibody, IgM test for Clinical Diagnostic Laboratories. Cardiolipin Antibody, IgM Ordering Recommendation Acceptable initial test when antiphospholipid syndrome (APS) is highly 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-IGM 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 <=12 MPL Negative 13-19 MPL Indeterminate 20-80 MPL Low to Moderately Positive 81 MPL or above High Positive Interpretive Data The persistent presence of IgG and/or IgM cardiolipin (CL) antibodies in moderate or high levels (greater than 40 GPL and/or greater than 40 MPL units) is a laboratory criterion for the diagnosis of antiphospholipid syndrome (APS). Persistence is defined as moderate or high levels of IgG and/or IgM CL antibodies detected in two or more specimens drawn at least 12 weeks apart (J Throm Haemost. 2006;4:295-306). Lower positive levels of IgG and/or IgM CL antibodies (above cutoff but less than 40 GPL and/or less than 40 MPL units) may occur in patients with the clinical symptoms of APS; therefore, the actual significance of these levels is undefined. Results should not be used alone for diagnosis and must be interpreted in light of APS-specific clinical manifestations and/or other criteria phospholipid antibody tests. Compliance Category: FDA Note MPL = IgM phospholipid units CPT Code 86147 Components Component Chart Name Cardiolipin Antibody IgM Component Test Code 0050902 LOINC 3182-3 Aliases ACA aCL aCL Antibody aCL IgG Anti-Cardiolipin Anticardiolipin Anticardiolipin Antibodies Cardiolip

Ordering information regarding a Cyclic Citrullinated Peptide (CCP) Antibody, IgG test for Clinical Diagnostic Laboratories. Cyclic Citrullinated Peptide (CCP) Antibody, IgG Ordering Recommendation Highly specific serologic test that aids in the workup of suspected rheumatoid arthritis or undifferentiated inflammatory arthritides. Rheumatoid Arthritis Panel (3004055 ) is the preferred test. Mnemonic Methodology Semi-Quantitative Enzyme-Linked Immunosorbent Assay 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: Separate serum from cells ASAP or within 2 hours of collection. Transfer 0.5 mL serum to a Standard Transport Tube. (Min: 0.3 mL) Storage/Transport Temperature: Refrigerated Unacceptable Conditions: Urine or plasma. Contaminated, hemolyzed, grossly icteric, heat-inactivated, or severely 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 Units or less 20-39 Units Negative Weak Positive 40-59 Units Moderate Positive 60 Units or Greater Strong Positive Interpretive Data Anti-cyclic citrullinated peptide (anti-CCP), IgG antibodies are present in about 69-83 percent of patients with rheumatoid arthritis (RA) and have specificities of 93-95 percent. These autoantibodies may be present in the preclinical phase of disease, are associated with future RA development, and may predict radiographic joint destruction. Patients with weak positive results should be monitored and testing repeated. Note CPT Code 86200 Components Component Chart Name Cyclic Citrullinated Peptide Ab, IgG Component Test Code 0055256 LOINC 33935-8 Aliases ACPA Antibody Anti Citrullinated Antibody Anti Citrulline Anti-CCP Anti-CCP Antibody Anti-Citrullinated Ab Anti-Citrullinated Antibody Anti-Citrullinated Protein/Peptide Antibody (ACPA) Anti-Citrulline Antibody Anti-Cyclic Citrullinated Peptide AntiCCP Antibody Anticitrullinated Antibody Anticitrullinated Protein/Peptide Antibody (ACPA) Anticitrulline Antibody Anticyclic Citrullinated Peptide (CCP) Antibody CCP CCP3 Antibody Citrullinated Ab Citrullinated Antibody Citrullinated Protein/Peptide Antibody (ACPA) Citrulline An tibody Soft-CCP

Ordering information regarding a T- Uptake test for Clinical Diagnostic Laboratories. T Uptake 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 green (lithium heparin). Also acceptable: lavender Specimen Preparation: Allow specimen to clot completely at room temperature. Separate 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 Components Available Separately Reference Interval Thyroxine, Total T4 0.8-1.3 TBI Interpretive Data Thyroxine, Free (Free T4) is the preferred test alternative for T Uptake and Free Thyroxine Index tests. Note CPT Code 84479 Components Component Test Code Component Chart Name LOINC 3005979 T Uptake 74795-6 Aliases T3 Uptake T4 uptake, S T4U, Serum TBC THBR Thyroid Binding Ratio Thyroxine-binding capacity Throxine Binding Index Triiodothyronine uptake, serum

Ordering information regarding a Lipid Panel test for Clinical Diagnostic Laboratories. 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

Ordering information regarding a Hemoglobin A1C test for Clinical Diagnostic Laboratories. Hemoglobin A1C Ordering Recommendation The Hemoglobin A1c test is a vital tool for diagnosing and monitoring diabetes mellitus, as well as assessing prediabetes. Diagnostic levels are marked by values greater than or equal to 6.5%, while monitoring involves tracking long-term glycemic control in diabetes patients. Additionally, values between 5.7% and 6.4% signal an increased risk of developing diabetes. For patients with hemoglobin variants lacking hemoglobin A, the Fructosamine test is preferred for monitoring long-term glycemic control. Mnemonic Methodology Quantitative Capillary Electrophoresis Performed Mon-Sat Reported Within 1-2 days New York DOH Approval Status This test is New York DOH approved. Specimen Required Patient Preparation: Collect: Lavender (EDTA) Specimen Preparation: Transport whole blood in original tube. (Min: 1 mL) Storage/Transport Temperature: Refrigerated. Unacceptable Conditions: Tissue or urine. Samples frozen after 8 hrs of collection and samples frozen at temperatures less than -70C. Remarks: Stability: Ambient: 72 hours; Refrigerated: 1 week; Frozen: 3 months (Must be frozen within 8 hrs of collection at -70 to -80C) Reference Interval Components Available Separately Reference Interval No Hemoglobin A1C Less than 5.7 percent No Estimated Average Glucose By report Interpretive Data HbA1c values of 5.7-6.4 percent indicate an increased risk for developing diabetes mellitus. HbA1c values greater than or equal to 6.5 percent are diagnostic of diabetes mellitus. For diagnosis of diabetes in individuals without unequivocal hyperglycemia, results should be confirmed by repeat testing. Note This assay accurately measures hemoglobin A1c even in the presence of hemoglobin variants, provided hemoglobin A is present. For patients with known hemoglobin variants who lack hemoglobin A, it is recommended to monitor long-term glycemic control using the Fructosamine test CPT Code 83036 Components Component Test Code 0070427 0070428 Component Chart Name Estimated Average Glucose LOINC Hemoglobin A1C 27353-2 4548-4 Aliases Hemoglobin A1C A1C A1C Hemoglobin Glycated Hemoglobin Glyco HGB Glyco-Hb Glycosylated Hemoglobin HA1C HbA1c Hemoglobin A1C Hemoglobin A1C, Blood

The Terms and Conditions of Clinical Diagnostic Laboratories located in Sterling and Ashburn is located on this page. Terms & Conditions 1. Acceptance of Terms Welcome to Clinical Diagnostic Laboratories ("we," "us," or "our"). By accessing or using our services, including our website and any related applications (collectively referred to as the "Services"), you agree to comply with and be bound by these Terms and Conditions. If you do not agree to these terms, please refrain from using our Services. 2. Services Offered Clinical Diagnostic Laboratories provides comprehensive diagnostic testing services including, but not limited to, blood panels, allergy tests, COVID tests, and Influenza tests. These services are available at our two separate locations: 2 Pidgeon Hill Dr., Suite 150, Sterling, VA 20165, and 44355 Premier Plaza, Suite 240, Ashburn, VA 20147. 3. Test Accuracy and Interpretation While we strive to provide accurate and reliable test results, it is important to note that medical tests may have limitations and potential variations. Test results should be interpreted by qualified medical professionals, and we strongly recommend consulting a healthcare provider for accurate diagnosis and treatment recommendations based on the test results. 4. Privacy and Data Security We are committed to protecting your privacy and the security of your personal and medical information. Our Privacy Policy outlines the types of data we collect, how it is used, and the measures we take to safeguard your information. By using our Services, you agree to our Privacy Policy. 5. Payment and Billing We offer various payment options for our services. Payment details, including pricing and payment methods, are available on our website and will be provided during the checkout process. Any additional fees, taxes, or charges associated with the services will be clearly communicated. 6. Appointments and Cancellations Appointments for tests are subject to availability and can be scheduled through our website or by contacting our customer service. If you need to cancel or reschedule an appointment, please provide notice in advance according to our cancellation policy, which will be communicated during the appointment scheduling process. 7. Test Preparation Instructions Specific tests may require certain preparations, such as fasting or medication restrictions. Customers are responsible for following these instructions to ensure accurate test results. 8. Turnaround Time for Results We strive to provide test results within a specific timeframe. However, factors such as test complexity and demand may impact the turnaround time. 9. Refund and Return Policy If services are paid for but not utilized, our refund and return policy applies. Details can be found on our website or obtained by contacting customer service. 10. Communication Channels For inquiries, support, or appointment scheduling, contact us via email, phone, or our designated customer portal. 11. Insurance and Coverage Information about insurance coverage, billing procedures, and reimbursement for services covered by insurance can be found on our website or by contacting us directly. 12. Laboratory Accreditation and Certifications Clinical Diagnostic Laboratories maintains specific accreditations and certifications that demonstrate our commitment to q uality and accuracy. 13. Health and Safety Measures To ensure a safe testing environment, we adhere to rigorous health and safety protocols for the protection of both patients and staff. 14. Dispute Resolution Any disputes will be resolved through mediation or arbitration, with the applicable jurisdiction specified. 15. Legal Disclaimers Our services are for diagnostic purposes only. Customers should consult healthcare professionals for medical advice and treatment. 16. User Accounts (if applicable) If you create a user account on our platform, terms related to account creation, management, and security apply. 17. Governing Law These Terms and Conditions are governed by and construed in accordance with the laws of the state of Virginia, without regard to its conflict of laws principles. 18. Conta ct Us If you have any questions, concerns, or feedback regarding these Terms and Conditions or our Services, 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

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Learn more about Clinical Diagnostic Laboratories, located in Ashburn and Sterling within the Loudoun County area. 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