MRS Clinical Chemistry Tests
Biochemistry and Genetics
Blood Lead
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Method: Graphite Furnace Atomic Absorption Spectrophotometer |
Reporting |
Results Available: 4-5 working days after receipt of specimen |
Contact #: (512) 776-7578 or (888) 963-7111 ext. 7578 |
Reference |
Reference Range: <5.0 μg/dL |
Diagnostic Information: Small amounts of blood lead can be damaging to the development of a child. |
Note: Any screening capillary Blood Lead Level (BLL) 5.0 μg/dL or greater must be confirmed with a venous specimen. Interpretation: For information on how to interpret and follow up on blood lead levels, view form Pb-109: Reference for Followup Blood Lead Testing and Medical Case Management (PDF 109kb). |
Specimen/Supply Requirements |
Specimen Collection: EDTA whole blood by venous or fingerstick collection. Consult with the laboratory about specimen collection, handling, and submission requirements before selecting supplies/equipment for use in venous and fingerstick blood collection.
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Required Request Form: G-THSTEPS for THSteps Medicaid; G-1B for traditional Medicaid, and other payor sources. |
Causes for Rejection: Include but are not limited to:
For help on how to avoid these causes for rejection, go to http://www.dshs.state.tx.us/lab/cc_spec-col.shtm. |
Specimen Submission |
Shipping Requirements:
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Billing |
CPT Code: 83655 |
Test Includes: Lipid Profile includes total cholesterol, triglyceride, High Density Lipoproteins (HDL) and Low Density Lipoproteins (LDL) |
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Method/Procedure: Enzymatic measure using UV/Visual Spectrophotometry |
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Reporting |
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Results Available: 4-5 working days after receipt of specimen |
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Contact #: (512) 776-7578 or (888) 963-7111 ext. 7578 |
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Reference |
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Diaostic Information: Cholesterol measurements are used in the diagnosis of metabolic disorders involving lipids and lipoproteins. Triglyceride measurements are used in the diagnosis and treatment of patients with diabetes mellitus, nephrosis, liver obstruction, and other diseases involving lipid metabolism or various endocrine disorders. HDL cholesterol is inversely related to the risk of developing coronary artery disease. The higher the HDL cholesterol, the less chance of developing coronary heart disease. LDL cholesterol is calculated using the Friedwald equation. |
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Specimen/Supply Requirements |
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Specimen Collection:
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Required Request Form: G-THSTEPS for THSteps Medicaid, G-1B for traditional Medicaid and other payor sources. |
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Causes for Rejection: Include but not limited to:
For help on how to avoid these causes for rejection, go to |
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Specimen Submission |
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Shipping Requirements:
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Billing |
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CPT Code: 80061, 82465, 83718 |
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Creatinine
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Method: Quantitative enzymatic |
Reporting |
Results Available: 4-5 working days after receipt of specimen |
Contact #: (512) 776-6236 or (888) 963-7111 ext. 6236 |
Reference |
Reference Range: Male: 0.3 – 1.3 mg/dL Female: 0.3 – 1.1 mg/dL |
Diagnostic Information: The measurement of creatinine is used to evaluate kidney function. |
Specimen/Supply Requirements |
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Biochemistry and Genetics
Diabetes/Glucose
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Method/Procedure: Enzymatic measure using UV/Visual Spectrophotometry |
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Reporting |
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Results Available: 4-5 working days after receipt of specimen |
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Contact #: (512) 776-7578 or (888) 963-7111 ext. 7578 |
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Reference |
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Reference Range: |
1-Hr Glucose Tolerance……… <180 mg/dL |
Diagnostic Information: Glucose measurements are used in the diagnosis and treatment of carbohydrate metabolism disorders including diabetes mellitus, hypoglycemia, gestational diabetes and pancreatic islet cell carcinoma. Glucose concentrations are measured using a timed endpoint method and hexokinase reagent. |
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Specimen/Supply Requirements |
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Specimen Collection:
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Required Request Form: G-THSTEPS for THSteps Medicaid, G-1B for traditional Medicaid and other payor sources. |
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Causes for Rejection: Included but not limited to:
For help on how to avoid these causes for rejection, go to http://www.dshs.state.tx.us/lab/cc_spec-col.shtm. |
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Specimen Submission |
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Shipping Requirements:
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Billing |
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CPT Code: 82947 |
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Biochemistry and Genetics
Hemoglobin Electrophoresis
(Also known as Hemoglobinopathy, Hemoglobin Type, or Sickle Cell Screening)
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Method: Isoelectric focusing |
Reporting |
Results Available: approximately 1 week after receipt of specimen |
Contact #: (512) 776-7578 or (888) 963-7111 ext. 7578 |
Reference |
Diagnostic Information: Heel stick, finger stick, or venous blood dropped on filter paper is screened by the use of isoelectric focusing for clinically significant hemoglobinopathies and thalassemias, including sickle cell anemia. |
Reference/Expected Range: Birth to ~6 months = F,A,A |
Interpretation: Results for Hemoglobin Electrophoresis that are outside of the Expected Range should be confirmed with a second specimen at a different laboratory. |
Specimen/Supply Requirements |
Specimen Collection: Heel stick, finger stick, or venous blood. Specimen Collection Card: The Snap-Apart filter paper card may be ordered from the Container Preparation Group at 512-776-7661 or (888) 963-7111 ext. 7661 and is only valid for Hemoglobin Electrophoresis testing. Specimen Collection Card Shelf Life: The expiration date is printed on the flap near the filter paper collection area. Do Not Use Expired Cards. Specimen Collection Card Storage (prior to use): Store in original wrapping and stack in a manner (vertically) to avoid compression of the filter paper. Specimen Collection Instructions:
Do not batch specimens; mail specimens the day of collection or the day after collection. |
Storage Instructions: Allow specimen to air-dry completely at ambient temperature before mailing; mail specimen as soon as possible. |
Causes for Rejection: The Hemoglobin Electrophoresis specimen has to be received by the laboratory by the 13th day after collection on a non-expired form and should have at least 1-2 adequately filled circles, patient name/date of collection, and a complete and accurate specimen submission form. Additional Causes for Rejection include:
For help on how to avoid these causes for rejection, go to http://www.dshs.state.tx.us/lab/cc_spec-col.shtm. |
Specimen Submission |
Required Request Form: G-THSTEPS for THSteps Medicaid, G-1B for traditional Medicaid and other payor sources. |
Shipping Requirements: Mail specimens the day of collection or the next day. U.S. Postal regulations require double containment of dried blood filter paper specimens. Ensure specimens are thoroughly dried prior to placing in mailing container. 1st containment: Use the attached wrap-around cover with printed universal biohazard symbol. 2nd containment: Use mailing container for shipping Hemoglobin Electrophoresis specimens. Notes: Ship specimens at ambient temperature within 24 hours of specimen collection. Avoid temperatures greater than 100 degrees F. |
Billing |
CPT Code: 83020 |
Method: SLS-methemoglobin (SLS-HB) for Total Hemoglobin |
Reporting |
Results Available: 4-5 working days after receipt of specimen |
Contact #: (512) 776-7578 or (888) 963-7111 ext. 7578 |
Reference |
Diagnostic Information: Whole blood specimens are screened for hemoglobin concentration using a photometric method. Decreased levels of hemoglobin can indicate iron-deficiency and other forms of chronic anemia. |
Reference Range: 11-16 µg/dL |
Specimen/ Supply Requirements |
Specimen Collection: EDTA whole blood by venous or fingerstick collection. Consult with the laboratory about specimen collection, handling, and submission requirements before selecting supplies/equipment for use in venous and fingerstick blood collection.
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Causes for Rejection: Include but are not limited to:
For help on how to avoid these causes for rejection, go to http://www.dshs.state.tx.us/lab/cc_spec-col.shtm. |
Specimen Submission |
Required Request Form: G-THSTEPS for THSteps Medicaid, G-1B for traditional Medicaid and other payor sources. |
Shipping Requirements:
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Billing |
CPT Code: 85018 |