Triiodothyronine, Total and Free
is a topic covered in the Davis's Lab & Diagnostic Tests
To view the entire topic, please sign in or purchase a subscription.
Nursing Central is the award-winning, complete mobile solution for nurses and students. Look up information on diseases, tests, and procedures; then consult the database with 5,000+ drugs or refer to 65,000+ dictionary terms. Explore these free sample topics:
-- The first section of this topic is shown below --
T3 and FT3.
To assist in evaluating thyroid function primarily related to diagnosing hyperthyroidism and monitoring the effectiveness of therapeutic interventions.
There are no food, fluid, activity, or medication restrictions unless by medical direction.
|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|
|Age||Conventional Units||SI Units (Conventional Units × 1.54)|
|0–3 days||2–7.9 pg/mL||3.1–12.2 pmol/L|
|4–30 days||2–5.2 pg/mL||3.1–8 pmol/L|
|1–23 mo||1.6–6.4 pg/mL||2.5–9.9 pmol/L|
|2–6 yr||2–6 pg/mL||3.1–9.2 pmol/L|
|7–17 yr||2.9–5.1 pg/mL||4.5–7.8 pmol/L|
|Adults and older adults||2.6–4.8 pg/mL||4–7.4 pmol/L|
|Pregnant women (4–9 mo gestation)||2–3.4 pg/mL||3.1–5.2 pmol/L|
Critical Findings and Potential Interventions
-- To view the remaining sections of this topic, please sign in or purchase a subscription --
Bladh, Mickey Lynn., and Anne M. Van Leeuwen. "Triiodothyronine, Total and Free." Davis's Lab & Diagnostic Tests, 7th ed., F.A. Davis Company, 2017. Nursing Central, nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425347/1/Triiodothyronine_Total_and_Free.
Bladh ML, Van Leeuwen AM. Triiodothyronine, Total and Free. Davis's Lab & Diagnostic Tests. 7th ed. F.A. Davis Company; 2017. https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425347/1/Triiodothyronine_Total_and_Free. Accessed October 16, 2019.
Bladh, M. L., & Van Leeuwen, A. M. (2017). Triiodothyronine, Total and Free. In Davis's Lab & Diagnostic Tests. Available from https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425347/1/Triiodothyronine_Total_and_Free
Bladh ML, Van Leeuwen AM. Triiodothyronine, Total and Free [Internet]. In: Davis's Lab & Diagnostic Tests. F.A. Davis Company; 2017. [cited 2019 October 16]. Available from: https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425347/1/Triiodothyronine_Total_and_Free.
TY - ELEC
T1 - Triiodothyronine, Total and Free
ID - 425347
A1 - Bladh,Mickey Lynn,
AU - Van Leeuwen,Anne M,
BT - Davis's Laboratory & Diagnostic Tests
UR - https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425347/1/Triiodothyronine_Total_and_Free
PB - F.A. Davis Company
ET - 7
DB - Nursing Central
DP - Unbound Medicine