In the 'Lab Values - Hormones' section of our in-depth questionnaire we ask the following question about your free T4 level:
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T4 (Free). Unit: ng/dL [pmol/L]
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Your answer |
...indicates |
...and suggests |
| 1. |
"Don't know" |
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| 2. |
"Under 0.4 [5] (very low)" |
Very low free T4 |
A symptom |
| 3. |
"0.4 to 0.8 [5-10] (low)" |
Low free T4 |
A symptom |
| 4. |
"0.9 to 2.0 [11-26] (normal)" |
Normal free T4 |
A symptom |
| 5. |
"Over 2.0 [26] (elevated)" |
Elevated free T4 |
A symptom |
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Your answer will affect the likelihoods of the conditions below.
Any answers in green reduce the likelihood of the condition.
GLOSSARY
Deciliter (dL)
0.1 or one tenth of a liter.
mol (mmol, nmol, pmol, umol)
Mole. The amount of a substance that contains as many atoms, molecules, ions, or other elementary units as the number of atoms in 0.012 kilograms of carbon 12. The number is 6.0225 × 10^23, or Avogadro's number. Also called gram molecule.
mmol: millimole: 0.001 or one thousandth of a mole.
umol: micromole: 0.000001 or one millionth of a mole.
nmol: nanomole: 0.000000001 or one billionth of a mole.
pmol: picomole: 0.000000000001 or one trillionth of a mole.
Nanogram (ng)
0.000000001 or a billionth of a gram.
Thyroxin (T4)
A thyroid hormone also prepared synthetically, for treatment of hypothyroidism and myxedema.
Last updated: May 10, 2007
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