Thyroid Stim Horm w/ FT4 reflex TSHX

Synonyms

Allscripts (AEHR) Order Name

Thyroid Stimulating Hormone (with FT4 reflex)

Sunrise Clinical Manager (SCM) Order Name

Thyroid Stimulating Hormone w/FT4 Reflex

EPIC Order Name

Thyroid Stimulating Hormone (TSH) with Reflex to Free T4

Clinical Info

Test includes reflex to free T4 for TSH results outside the reference range.

Specimen Type

Blood

Container

Gold Top Tube

Collection Instructions

Container/Tube: Gold-top tube(s)
Specimen Volume: 1 mL of serum
Transport Temperature: Refrigerated
Stability: 8 Days Room Temperature
               14 Days  Refrigerated
               24 Months Frozen
 

Transport Instructions

Refrigerated

Specimen Stability

8 Days Room Temperature
               14 Days  Refrigerated
               24 Months Frozen
 

Methodology

Electrochemiluminescence Immunoassay (ECLIA)
No Biotin interference up to 1200ng/mL

Days Performed

Monday through Sunday, Continuously

Performing Laboratory

Northwell Health Laboratories

CPT

84443-TSH
84439-FT4 (if appropriate)

PDM

5300437

Result Interpretation

TSH: Units µIU/mL
     Age                                 Reference Range
0 – 5 days                            0.70 – 15.20
5 days – 2 months               0.70 – 11.00
2 months – 11 months         0.70 – 8.40
11 months – 5 years             0.70 – 6.00
5 years – 10 years               0.60 – 4.80
10 years – 19 years             0.50 – 4.30
19 years – 150 years           0.27 – 4.20
   
Free T4: 0.9-1.8 ng/dL
If TSH is <0.27 or >4.20, a Free T4 will be performed at an additional charge.

Forms