My Recent Searches No Recent Search. My Tests Viewed No Test Viewed. Test Name. Overview Ordering Info Algorithms Related Guides CPT Code(s) 84436. Methodology Immunoassay Reference Range(s) Pediatric 1-8 Years g/dL 9-13 Years g/dL 14-17 Years g/dL Conversion Factor: 1 g/dL 12.9 nmol/L.CPT Code(s 84436 Preferred Specimen(s Serum (Gel Barrier) 2 mL serum from a serum separator tube (SST) (0.5 mL min). Centrifuge as soon as possible after clot formation. Be sure barrier forms a complete separation between serum and cells.
(Min: 0.5 mL) Storage/Transport Temperature Refrigerated. Unacceptable Conditions Grossly hemolyzed specimens. Remarks Stability After separation of cells: Ambient: 24 hours; Refrigerated: 1 week; Frozen: 1 month. Effective May 16, 2011 Free Thyroxine, ng/dL 0-3 days ng/dL 4-30 days ng/dL 1-23 months ng/dL 2-6 years ng/dL 7-11 years ng/dL 12-19 years ng/dL 20 years and older.Monitoring treatment of hyperthyroidism with thiouracil and other antithyroid drugs. Total T4 levels offer a good index of thyroid function when the thyroid-binding globulin is normal and nonthyroidal illness is not present.
Methodology Chemiluminometric Immunoassay Performing Laboratory Automated Lab Specimen Requirements. Specimen Type: Serum Container/Tube: Red top (preferred) Acceptable: Serum gel Specimen Volume: 1 mL. Specimen Minimum Volume: 0.5 mL Reject Due To: Hemolysis: Mild OK; Gross reject Lipemia: Mild OK; Gross OK.Methodology immunoassay Setup Schedule 7 am Monday til 10 pm Saturday RI Report Available 1 day excluding weekends Reference Range SEX AGE Report Normals Units N/M/F 0Y 0.8 - 1.8 NG/DL 1D 1.2 - 4.2 NG/DL 5D 2.2 - 5.3 NG/DL 5M 0.9 - 2.2 NG/DL 2Y 0.7 - 1.9 NG/DL 8Y 0.8 - 2.3.
Test List J. W X. Y Z # Test Code 71124 Alias/See Also Free T4; Free Thyroxine; FT4; Thyroxine Free; CPT Codes 84439 Preferred Specimen 1 mL serum (SST). (minimum 0.5 mL) Instructions Avoid hemolysis.Refrigerated (preferred) For specimen integrity in the lock box click here Specimen Stability Room Temperature 8 hours. Refrigerated 5 days centrifuged Frozen n/a Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?) Hemolysis, Lipemia, incorrect specimen type, insufficient sample volume, improper storage conditions, exceeds specimen stability guidelines, contaminated sample.
CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed. Requests for germline genetic tests require either a copy of a specific patient consent form to be submitted with the testing request, or a blanket attestation from the physician that acknowledges their compliance with.Free Thyroxine FT4, Serum Non-Protein Bound Tetraiodothyronine. T4 Free, Serum T4, Free Thyroid Function Cascade COMPONENT DESCRIPTION TEST TYPE INFECTIOUS UNIT OF MEASURE NUMERIC MAP LOINC 0070138 Thyroxine Free Resultable ng/dL XX.
Thyroid function may be assessed with thyroid stimulating hormone (TSH) and free T4 measurements. To view specimen requirements and codes please. Select a regional laboratory. Not sure which laboratory serves your office?Not the preferred initial thyroid disorder screening test. Order following an abnormal thyroid stimulating hormone (TSH) result to diagnose thyroid disease. Order in conjunction with TSH in cases of suspected secondary hypothyroidism.
Icterus: NA Other: NA Specimen Stability Information Specimen Type. Temperature Time Whole Blood Ambient 8 Hours Serum Refrigerated 72 Hours. Frozen 14 days Serum Specimen Transport on ice Reference Values ug/dL. Day(s) Test Set Up Monday through Sunday LOINC Code Information.CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.
Yes No Please wait while the page reloads. An email has been sent to the address you provided. There was an error sending the email. Please try again later.Test Code Reporting Title LOINC Code T4. T4 (Thyroxine) 3026-2 Test Classification and CPT Coding Test Classification: This test has been cleared or approved by the U.S. Food and Drug. Administration and is used per manufacturer's instructions.
X 3024-7 For questions regarding the Interface Map, please contact. Certain tests have specimen requirements that differ for specimens shipped from New York state. When available, show New York specimen requirements by default?Specimen Preparation Allow specimen to clot completely at room temperature. Separate serum or plasma from cells ASAP or within 2 hours of collection. Transfer 1 mL serum or plasma to an ARUP Standard Transport Tube.
Performance characteristics were verified by Collaborative Laboratory Services in a manner consistent with CLIA requirements. CPT Code: 84436 Useful For Monitoring treatment with synthetic hormones (synthetic triiodothyronine will cause a low total thyroxine T4).Adult g/dL Pregnancy 1st Trimester g/dL 2nd Trimester g/dL 3rd Trimester g/dL All Trimesters Together g/dL Clinical Significance. Thyroxine (T4) is the major secretory hormone of the thyroid. Only 0.03 of T4 is unbound and free for exchange with tissues.
Pregnancy, 2nd Trimester ng/dL 84439 Component Test Code Component Chart Name LOINC 0070138 Thyroxine Free 3024-7 Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.Quantitative Electrochemiluminescent Immunoassay Sun-Sat Within 24 hours This test is New York DOH approved. Patient Preparation. Collect Serum separator tube or plasma separator tube. Also acceptable: Green (sodium or lithium heparin) or lavender (EDTA ).
As a convenience, we offer a blanket attestation for you to sign acknowledging that you are in compliance with this informed consent law. This form, as well a sample consent form that you can customize for your practice, can be downloaded here.Call us 866-MYQUEST 30262P P 17733X T4 Total (Thyroxine) 17733.
Invert a minimum of 5 times then allow to clot in an upright position for 30 minuties. Centrifuge the SST for at least 10 minutes. Keep tightly stoppered. Transport Container SST (speckled top) tube Transport Temperature.Prefer within 45 minutes after collection. Stability: Ambient: Information not available Refrigerated: 7 Days Frozen: 4 Weeks. Methodology: Enzyme Immunoassay (EIA) Transport Temperature: Refrigerated Transport Container: Serum Separator Tube The CPT codes provided are based on AMA guidelines and are for informational purposes only.