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49 Cards in this Set
- Front
- Back
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what joins the 2 lobes of the thyroid?
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isthmus
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what is the active thyroid hormone?
prohormone? |
T3
T4 |
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if someone is hypometabolism what might their thyroid function be?
hypermetabolism? |
hypothyroidism
hyperthyroidism |
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what is congenital hypothyrodism?
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the absence of a functional thyroid at birth. if this occurs it can lead to mental retardation. This causes thyroid function to be mandatory in new born screening
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is a thyroid function test manditory in newborns?
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yes
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If TSH is elevated and T3/T4 is low, what should you think?
TSH is low and T3 and T4 is high? |
hypothyrodism
hyperthyrodism |
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what hormone controls the secretion of T3/4?
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TSH
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If T3 is normal?
elevated? low? |
normal
hyperthyroidism hypothyroidism |
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what is the storage form of thyroid hormone?
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T4
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describe primary hypothyrodism
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elevated TSH and low T3/4
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what is Central Hypothyroidism?
how would this present? |
lack of TRH due to a problem with the hypothalamus.
Low TSH and low T3/4 |
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what hormone controls the secretion of T3/4?
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TSH
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If T3 is normal?
elevated? low? |
normal
hyperthyroidism hypothyroidism |
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what is the storage form of thyroid hormone?
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T4
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describe primary hypothyrodism
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elevated TSH and low T3/4
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what is Central Hypothyroidism?
how would this present? |
lack of TRH due to a problem with the hypothalamus.
Low TSH and low T3/4 |
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hyperthyrodism
TSH? T3/4? |
TSH low
high |
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what 2 ABs would might be elevated in hashimoto thyroiditis?
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Anti-TPO
anti-thyroglobulin |
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what antibody might be elevated in graves dz?
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TSI (thyroid stimulating immunoglobulin)
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is hashimoto dz a hyper or hypo
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hypo
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is graves dz hyper or hypo?
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hyper
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what is the most common cause of hyperthyroidism?
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graves dz
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what are 5 techniques you can do to explore/look at the thyroid?
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I-131
CT MRI US Biopsy |
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what are 2 reasons to do I-131?
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to explore the thyroid structure and function as well as masses and nodules
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are hot nodules mostly benign or malignant?
Cold? |
hot-benign
Cold-5% malignant |
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what is the most common image study of a thyroid?
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US
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what is a good study to look at metastais?
One to look at lymphnodes? |
CT
MRI |
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if someone has hypometabolism you think...
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hypothyroidism
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fatigue, Wt gain, both signs of...
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hypothyrodism
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what is transient hypothyrodism?
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change in thyroid secretion due to infection or inflammation. person will be hyper then hypo then normal
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what are the 2 types of transiet hypothyrodism?
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painful and painless
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what usually causes painful transiet hypothyrodism
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subacute granulomatous thyroditis, trama, or radiodine therapy (I-131)
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what usually causes painless transiet hypothyrodism
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postpartum or drug induced
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what is myxedema coma?
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life threating hypothyrodism.leads to hypotension, hypothermia, bradycarida, and organ fail
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what would you do for someone in myxedema coma?
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IV thyroxine
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what drug is typically used to treat hypothyrodism?
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levothyroxine
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when do you recheck somones TSH levels after start of a new regimen?
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6 wks
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what are 2 causes of hyperthyrodism?
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graves and toxic multinodular goiter
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hyperthyrodism
TSH? T3/4? |
low
high |
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Diffuse, nontender goiter
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graves dz
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Multiple thyroid nodules
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toxic multinodular goiter
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Single thyroid nodule
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thyroid adenoma
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Tender, painful goiter
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subacute thyroditis
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Normal thyroid gland but has hyperthyrodism
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graves dz.
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heat intolerance, atrial fib, weight loss, tachycardia
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hyperthyrodism
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what is the tx for hyperthyrodism?
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supportive, Beat blocker (propranolol is prefered because it blocks the conversion of T4 to T3)
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what is the most common thyroid tumor?
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thyroid adenoma
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If you do an US and you see a mass in the thyroid and you see
fluid filled solid mixed small malignant? |
benign
malignant either benign |
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what are 3 thyroid lesions you always biopsy?
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cold, mixed, and solid
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