All of the following diagnostic tests are matched with the...

All of the following diagnostic tests are matched with the correct definition EXCEPT: Fasting blood glucose blood glucose tested from a drop of capillary blood obtained by pricking the finger Thyroid scan: radiographic evaluation of the thyroid after a radioactive substance is injected; identifies thyroid size, shape, position, and function Glycosylated hemoglobin: reflects the average blood glucose level over the past 3 to 4 months Thyroid function test: reflects thyroid function by measuring levels of thyroid-stimulating hormone (TSH), triiodothyronine (T3), and thyroxine (T4).

Transcript

0:00 Hello students.

00:01 Today's question is increased level of tssh in combination with t4 and t3.

00:09 What does it indicate? what does it indicate before reading the options? let's take the look at what does tsh and t3 and t4 does.

00:19 So tsh means that thyroid stimulating hormone.

00:25 Stimulating hormone and t3 and t4 does.

00:31 Four are the actual hormones which are released by the, which are secreted by the, secreted by the thyroid gland.

00:44 So these three are different hormones.

00:47 Different hormones.

00:49 And how does the work? so we have, we know that we have pituitary gland in our brain, pituitary gland in our brain and we have thyroid gland which release the hormone.

01:03 So what happens? so when pituitary gland sense that, sense that in our body, in our blood, t3 and t4 are low.

01:13 It means that the thyroid gland is not releasing them, not secreting them properly.

01:19 So what does this gland will do? so this gland will release the thyroid stimulating hormone that will bind to, thyroid gland and this thyroid stimulating hormone will make this thyroid gland to release t3 and t4 more.

01:38 T3 and t4 more.

01:40 So now the question is about we have t3 and t4 normal or high.

01:45 Normal or high.

01:47 So we have when these are enough, when these two hormones are enough, pituitary gland will stop releasing the tsa.

01:56 But in the case of question, we have t .s .h high as well.

02:01 Tsh high as well, which indicates that we have hyperthyroidism, which indicates that both tsh, t3 and t4 are high.

02:17 So it means that there is some problem in the pituitary gland...

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