Pathology tests database

Sample and container requirements

Serum Lithium Heparin Plasma (paediatrics only)

Minimum volume required

Special requirements

None

Patient preparation

None

Sample viability

Turnaround time

This assay is run throughout the day and night. The in-lab turnaround time is normally less than 24 hours.

Reference range

0.4 – 4.9 mIU/L In pregnancy: Trimester 1: 0.0878 – 2.8293 mIU/L Trimester 2: 0.1998 – 2.7915 mIU/L Trimester 3: 0.3070 – 2.9028 mIU/L (Source: Abbott Diagnostics)

Clinical guidance

Thyroid-stimulating hormone (TSH) measurement is a front line test for assessment of thyroid function. It can also be used to monitor therapy in hypothyroidism and hyperthyroidism. Please refer to LabTestsOnlineUK to learn more about TSH. https://labtestsonline.org.uk/tests/thyroid-stimulating-hormone-tsh

Notes