Thyroid Stimulating Hormone with Thyroxine Reflex (Direct Access Testing)

Last Modified: 8/30/2023 12:58:05 PM


Medical Necessity Documentation:  
Client Notes:  When sending to Parkview Dekalb: 1.0 mL Serum in a SST Gold Top Tube is the recommend specimen
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 Plasma
Transport & Storage: Temperature/Stability:  7 days Refrigerated

24 hours unspun
Reference Range: 0.25 - 4.5 uIU/ml
Free T4: 0.80 - 1.80 ng/dL 
Critical Ranges:  
Test Comments:  
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: DATHY
EPIC Test Code: LAB3279
Alternate Test Names: Thyroid Pro Direct Access; Thyroid Profile Direct Access; TSH and T4 Free
Included Tests: Thyroid Stimulating Hormone (TSH); Thyroxine (Free T4)
CPT Coding: 84443 & 84439

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