How Long Does It Take to Get Blood Test Results

How Long Does It Take To Get Blood Test Results?

The time it takes to get a blood test result depends upon many factors such as: the type of test; the lab where the test was done; your age, health status, and other conditions or medical problems you may have; and even if there is any delay in getting a response from your doctor.

Blood Tests For Thyroid (T4) And T3

In general, the longer you wait to get a result from your doctor’s office, the less likely it is that they will be able to tell you whether or not you have been diagnosed with hypothyroidism. If you don’t see a doctor for awhile, then your chances of having symptoms like fatigue and weight gain increase.

These symptoms could indicate that something else is wrong than just being underactive thyroid.

A blood test called a serum TSH level measures levels of the hormone thyrotropin (TSH). A normal TSH level indicates that your body is producing enough hormones to keep up with the amount of thyroid stimulating hormone (TSH) produced by your pituitary gland.

When your TSH goes too high, it signals your adrenal glands to release cortisol into the bloodstream. Cortisol increases fat storage and decreases energy production in order to conserve energy.

On the other hand, when your TSH levels are low, it means that you aren’t producing enough hormones to keep up with the amount of TSH being secreted, which makes your body work at less than optimum efficiency. With this condition, the pituitary gland will continue to produce TSH in an attempt to get your thyroid to produce more hormones.

Eventually, this can cause the pituitary gland to become burned out and stop functioning altogether.

Also, a high TSH level can be an indication that you have developed antibodies to your thyroid and that your thyroid is suffering from Hashimoto’s disease (an autoimmune disorder). In this case, the TSH level will remain high even if thyroid hormone levels are low.

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How long does it take to “rule out” bacteremia in children with central venous catheters? by SS Shah, KJ Downes, MR Elliott, LM Bell… – Pediatrics, 2008 – Am Acad Pediatrics

Screening for colorectal cancer: randomised trial comparing guaiac-based and immunochemical faecal occult blood testing and flexible sigmoidoscopy by L Hol, ME Van Leerdam, M Van Ballegooijen… – Gut, 2010 – gut.bmj.com