Children's Mercy Hospitals and Clinics
Name
TSH Algorithm Diagnostic

CMH Lab Section
Chemistry

Specimen Requirements
1 mL blood in red gel tube

Availability
Routine

Turn Around Time
1-14 days

Special Instructions
Algorithm:
TSH

If TSH is normal, no further testing

If TSH is low, reflexes order for Free T4. If Free T4 is low or normal, no further testing. If Free T4 is high reflexes order for Thyroid Stimulating Immunoglobulin and Thyroid Antibodies (microsomal and thyroglobulin)

If TSH is high, reflexes orders for Free T4 and Thyroid Antibodies (microsomal and thyroglobulin)

Methodology
Vitros and Chemilluminescent Immunoassay

Ranges
see report

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