THYROID FUNCTION TEST Flashcards
1
Q
- Measured the relationship between the TRH and TSH secretion
- Differentiate EUTHYROID and HYPERTHYROID PATIENT
- Helpful in the detection of Thyroid Hormone Resistance
- It confirms borderline cased and euthyroid graves disease
- Dose need 500 ug via IV
A
Thyrotropin Releasing Hormone Stimulation
2
Q
- MOST IMPRTANT THYROID FUNCTION TEST detecting clinically significant dysfunction
- Aids in early detection of Hypothyroidism
- Used to differentiate PRIMARY THYROID DISORDER from the SECONDARY DISORDER.
- pregnancy
A
Thyroid Stimulation Hormone
3
Q
- Formed from the removal of one iodine inner ring of T4
- Biologically inactive metabolite of T4
- Third Major Circulating Thyroid Hormone
- Detects patient with Euthyroid Sick Syndrome (Elevated rT3)
A
Reverse T3/ Reverse
4
Q
- Biologically active fraction of T4
- Differentiate drug induced TSH elevation or hyothroidism
A
Free thyroxine
5
Q
- Utilizes to confirm result of FT4 and FT3
- Distinguishing hyperthyroidism
- TBG excess leads to increased serum level of t3 and t4 but they are unbounf
A
Thyroxine-Binding Globulin
6
Q
- Measures of Antithyroglobulin Antibodies
A
Tanned Erythrocyte Hemagglutination
7
Q
- It measures the number or available binding site
- Relative measurement of the unoccupied binding site of t4
- reflect the serum level if TBG
A
T3 uptake / T3 Resin Uptake
8
Q
- Indirectly assesses the level of free T4 in blood
- Equilibrium relationship of bound T4 and FT4
- A relative estimate of the total T4 concentration
- Important in correcting euthyroid individuals
A
Free Thyroxine Index
9
Q
A
