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Doctor insights on: What Does A Low T4 Level Mean

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What does high T4 level mean?

What does high T4 level mean?

It can mean: An elevated level of thyroid hormone, either due to hyperthyroidism or thyroid inflammation. It can be falsely elevated by estrogen therapy. Other thyroid tests are more reliable. The T3 (liothyronine) you're receiving is potentially dangerous and should not be taken. It can not me measured in the blood and has potential toxicity. Use brand name T4 only if replacement is required, . ...Read more

Dr. David Sneid
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Thyroxine (Definition)

Thyroxine is a thyroid ...Read more


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What does a low T4 free test mean?

What does a low T4 free test mean?

Low free T4: If a patient is not currently on certain types of thyroid medication, it means low thyroid function. You would need more labwork done to confirm the diagnoses. ...Read more

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What exactly does a low IgG (3) level indicate?

What exactly does a low IgG (3) level indicate?

Immunodeficiency: Immunoglobulin g, igg, is an antibody, a protein that the immune system makes to help fight infection. Igg floats around in the blood stream and helps fight bacteria and viruses. An igg level of 3 is exceedingly low. In most labs, a normal igg level is around 700. Low igg can predispose you to having recurrent infections. You should see an immunologist about igg replacement. ...Read more

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What does a low level of IgA mean?

What does a low level of IgA mean?

IgA deficiency is: the most common of all the "selective antibody deficiencies " occurring in 1:300-1:700 of the population. Levels vary greatly from person to person and in different age groups. Infants have the lowest range of normal and sometimes IgA is either extremely low or may be undetectable in the newborn period. Levels are typically checked if someone has recurring infections of the sinuses, ears or lung ...Read more

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What does a low TSH level mean?

What does a low TSH level mean?

Need to look at T3 (liothyronine): And free t4. Low tsh, depending on the sensitivity of the assay, indicates thyroid hyper-function. However, the suspected hyperthyroidism needs to be confirmed with high levels of T3 (liothyronine) and free t4. All lab tests need to be evaluated in the clinical context and it would be prudent to take up the issue with your doctor. ...Read more

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What does a high level of immunoglobulin m mean?

What does a high level of immunoglobulin m mean?

Several causes: Multiple myeloma, early infections, rheumatoid arthritis and some kinds of kidney disease can cause this. The likely causes can vary with the age of the person. You need to discuss this with your physician. ...Read more

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What does a low c-peptide level mean for you?

What does a low c-peptide level mean for you?

Loosing pancreas: Low c peptide could mean no reserve of pancreas -type 1 diabetes, high c peptide is a sign of leaking pancreas - inflammation and type 2 diabetes. ...Read more

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What does a high IgA level mean?

What does a high IgA level mean?

Nothing bad: Iga is the amount of immunoglobulin a and it can be measured in the blood serum and less commonly in the saliva. While a low amount of serum IgA may predispose some people to recurrent infections, an elevated serum IgA is nothing to worry about. It means the person is making good amounts of antibody. ...Read more

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What does a normal tsh, low T4 and low T3 (liothyronine) mean?

What does a normal tsh, low T4 and low T3 (liothyronine) mean?

Perhaps nothing: Such tests need to be repeated. If the T4 and T3 (liothyronine) were measured as total T4 & T3 (liothyronine) it may mean only that the binding proteins of thyroid hormone are low. Ask your doctor what was done and his/her interpretation. ...Read more

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What does it mean to have a low IgM level?

Immune test: The body normally makes immunoglobulins iga, igg, igm, ige and igd. Low or absent IG levels are seen in patients with recurrent infections. A low igm level that is clinically relevant usually occurs in the presence of a low igg and/or IgA level. It is always best to treat a patient, not a number. If a person is otherwise healthy and only has lower igm, usually no worries. ...Read more

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What does a high immunoglobulin level mean for you?

What does a high immunoglobulin level mean for you?

It depends: There are several types of immunoglobulin, igg, iga, IgM and ige. Having a "high" level of each of them could mean different things. It is also important to know if it is a "high" overall level, or a "high" level of a specific kind of igg, iga, igm, or ige. In general, a high ige means "allergy". High igg/a/m can mean different things depending on their specificity (total or specific). ...Read more

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I have a high TSH but normal T4 levels, what does this mean?

I have a high TSH but normal T4 levels, what does this mean?

Hypothyroidism: The TSH test is10 times more sensitive for the diagnosis of hypothyroidism that the t4. The TSH is reported on a log scale so that small changes in the TSH value are caused by relatively big changes in the blood level. This is a reflection of the pituitary being extremely sensitive to change in the T3 (liothyronine) level if you have symptoms it would be wise to seek treatment. ...Read more

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What does it mean when you have a low T4 reading?

What does it mean when you have a low T4 reading?

Possible hypthyroid: Or low tbg. Ask you doctor what your TSH is if the test was done for possible hypothyroidism. A normal TSH and low T4 may mean nothing. Find a thyroidologist through the american thyroid association. ...Read more

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What does low level of IgM mean?

What does low level of IgM mean?

Maybe nothing?: Igm is a type of antibody you make to help fight infections. Slightly low igm by itself may not mean anything (i.e., your nature level). If it is very low, or other antibodies are also low (or not functioning), it may be a sign of immune deficiency that can lead to more infections. If you have ?S, see a clinical immunologist. They can help determine if your immune system is functioning properly. ...Read more

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What does a normal TSH level with an elevated T4 level mean?

What does a normal TSH level with an elevated T4 level mean?

Nothing: The TSH is more accurate. A free T4 is more accurate than a t4, which can be affected by many factors such as estrogen. Are you on any form of estrogen, bcp's etc? ...Read more

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What does a low thyroid test mean?

Need proper testing: Probably refers to TSH slightly abnormal. However here is hoe to be sure: check free T3 and reverse t3. Ft3 should be in upper range and rt3 in lower range. If your ratio is off, you may need Armour Thyroid or t3, and synthroid (thyroxine) would be the wrong med for you. ...Read more

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What does a high IgE level mean?

What does a high IgE level mean?

Allergy/asthma: Ige is an antibody that is commonly elevated in people with a tendency towards allergic disease. While there are other potential causes, the most common culprits are asthma, allergic rhinitis (hayfever), and eczema. ...Read more

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My TSH level is low 0.43 what does this mean exactly?

My TSH level is low 0.43   what does this mean exactly?

More workup: Currently, it points to hyperthyroidism but you need to complete the work up to know for sure. At the very least, i would repeat the TSH along with the free hormones T4 and t3 (liothyronine). If they also point to hyperthyroidism, then proceed further to find the exact cause for this. Tsh alone does not give you a complete picture. ...Read more

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What does it mean if your blood work shows a high lymphocyte percentage?

What does it mean if your blood work shows a  high lymphocyte percentage?

Lymphocytosis: Lymphocytosis is is an increase in white blood cells called lymphocytes. Usually the number is temporary rise in the number of lymphocytes after an infection. White blood cells are an important part of the immune system. ...Read more

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What does a high immunoglobulin mean ?

How high?: Minimally elevated probably not worth worrying about. Very or moderately high requires a test - serum immunoelectrophoresis - to rule-out multiple myeloma. Minimally high bears repeating twice a year. ...Read more