Last Modified:
8/30/2023 12:56:34 PM
Medical Necessity Documentation:
Client Notes:
Patient Preparation:
Specimen Requirements:
1.0 mL Plasma in a PST Mint Green Top Tube - Li Heparin (preferred)
or
1.0 mL Serum in a SST Gold Top Tube
Collection Instructions:
Minimum Volume:
0.5 mL Serum
Transport & Storage: Temperature/Stability:
7 days Refrigerated
24 hours unspun
Reference Range:
0.25 - 4.50 uIU/ml
Critical Ranges:
Test Comments:
The American Association of Clinical Endocrinologists recommends an adult reference range of 0.3-3.0 uIU/ml.
Pediatric Reference Range not established
It has been noticed that allopurinol may falsely elevate TSH level. Cotesting with Free T4 and correlation with clinical symptoms are recommended in evaluation of thyroid function in this subset of patients.
This assay utilizes biotin technology. Patients taking vitamin supplements containing high doses of biotin (>5 mg/day) may have falsely decreased test results generated.
Methodology:
ECLIA
Clinical Significance:
Documentation:
Custom Panel:
No
PRODUCTION SCHEDULE
Days Performed:
Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday
Sites Performed:
Parkview Dekalb Hospital, Parkview Huntington Hospital, Parkview LaGrange Hospital, Parkview Noble Hospital, Parkview Randallia Hospital, Parkview Regional Medical Center, Parkview Southwest , Parkview Wabash Hospital, Parkview Warsaw , Parkview Whitley Hospital
PHL Test Code:
DATSH
EPIC Test Code:
LAB3275
Alternate Test Names:
Thyroid Stimulating Hormone, 3rd Generation; TSH; TSH 3rd Generation; TSH Direct Access; TSH, Ultra; Ultrasensitive TSH
Included Tests:
CPT Coding:
84443
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