Nursing Central: Triiodothyronine, Total

Triiodothyronine, Total

General

Synonym/Acronym:
T₃.

Common Use:
To assist in evaluating thyroid function primarily related to diagnosing hyperthyroidism and monitoring the effectiveness of therapeutic interventions.

Specimen:
Serum (1 mL) collected in a red- or tiger-top tube. Plasma (1 mL) collected in a green-top (heparin) tube is also acceptable.

Normal Findings:
(Method: Immunoassay)

Age	Conventional Units	SI Units (Conventional Units × 0.0154)
Cord blood	14–86 ng/dL	0.22–1.32 nmol/L
1–3 days	100–292 ng/dL	1.54–4.5 nmol/L
4–30 days	62–243 ng/dL	0.96–3.74 nmol/L
1–12 mo	105–245 ng/dL	1.62–3.77 nmol/L
1–5 yr	105–269 ng/dL	1.62–4.14 nmol/L
6–10 yr	94–241 ng/dL	1.45–3.71 nmol/L
16–20 yr	80–210 ng/dL	1.23–3.23 nmol/L
Adult	70–204 ng/dL	1.08–3.14 nmol/L
Older adult	40–181 ng/dL	0.62–2.79 nmol/L
Pregnant woman (last 4 mo gestation)	116–247 ng/dL	1.79–3.8 nmol/L

Triiodothyronine, Total has been found in Davis's Lab & Diagnostic Tests

If you are a registered user, please login below.

If not, learn more about gaining full access.

Login: User Name:

Password:

Forgot your password?
Forgot your username?
Remember Me

Try and Buy

Nursing Central puts five fully integrated references at your fingertips on mobile devices and the web. See how Nursing Central works by clicking the sample entries below or purchase a subscription for the web and your mobile device.

View these free topics online now.