TSH, dried blood spot

Test Name
TSH, dried blood spot
Aliases
Neonatal TSH; Neo TSH
Provincial Mnemonic
LOINC Test Code
29574-1
Description and Primary Use
Neonatal TSH in dried blood spots is used as an aid in screening newborns for congenital hypothyroidism.
Reorder interval
Not yet defined
TAT
1-3 Weeks
Test Cost
Not Available
Tier
1 - General Availability
Ordering Requirements (Restrictions / Conditions)

No Restrictions

Required Consultations
None
Algorithms and Guidelines

None

Special Patient Preparation

None

Special Collection / Transport / Processing Requirements

Filter Paper is taken at least after 24 hours of age. Must use Whatman # 903 Filter Paper  soaked through with whole blood.

Criteria for Rejection

Based on specimen condition and stability, (e.g. samples considered unsuitable are blood not soaked through filter paper, filter paper destroyed or there is overlaying of blood).

Laboratory Service Area
Clinical Chemistry
Performing Laboratory / Site
Category 4 Laboratory (HSC only)
Last Updated
18-Sep-19