AutoICD API

73557-1

Laboratory

Thyroxine (T4) free [Mass/volume] in Cord blood

Definition

In newborn infants, the reference range for free thyroxine varies with gestational age at time of birth, and is also different in cord blood.

LOINC 6-Axis Classification

Component

Thyroxine.free

Property

MCnc

Time Aspect

Pt

System

BldCo

Scale Type

Qn

Method Type

N/A

Details

Class

CHEM

Order/Observation

Both

Short Name

T4 Free BldCo-mCnc

Display Name

Free T4 (BldCo) [Mass/Vol]

Related Names

Blood - (umbilical) cordChemistryCord (umbilical) bloodCord bldCord bloodEndocrineEndocrinologyFRFreeT4FT4GynGynecologyLevelLevothyroxineLevo-thyroxineL-thyroxineMass concentrationNon-protein boundOBObGynObstetricsPoint in timeQNTQuanQuantQuantitativeRandomT4T-4T4 Freethyroid hormoneThyroxThyroxinThyrxTotal T4TT4

Frequently Asked Questions

What is LOINC code 73557-1?

LOINC code 73557-1 identifies "Thyroxine (T4) free [Mass/volume] in Cord blood". In newborn infants, the reference range for free thyroxine varies with gestational age at time of birth, and is also different in cord blood.

What does 73557-1 measure?

This code measures Thyroxine.free in BldCo. It belongs to the CHEM class in the LOINC classification.

What is LOINC?

LOINC (Logical Observation Identifiers Names and Codes) is a universal standard for identifying laboratory and clinical observations. It is maintained by the Regenstrief Institute and used worldwide for health data exchange.