Eval Thyroid Fxn Flashcards by Nathan Hansen | Brainscape

Q

Hypothalamus releases

AP releases

Thyroid release, ultimately

Peripheral tissues convert

A

TRH

TSH

T4/T3, dec TRH/TSH release

T4 to T3

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Q

Preferred screening test

then

only T3 for

Thyroid antibody tests

A

TSH

Free T4

T3 secreting adenoma

anti TPO or anti TG

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Q

Screening for thyroid dz

Asx

Monitor pts w

A

Newborn, pregnant, elderly, adults +35

thyroid therapy

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Q

HypoT tx

TSH is more, takes 6-8 wks to reach

recheck TSK

A

levothyroxine (T4)

stable, steady state

6-12 mnths

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Q

TRH stimulation w response

TRH without response

A

inc TSH/T4, AP works

AP impacted

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Q

Subclinical hypoT labs

presents

may check

A

high TSH, T4 normal

asx

anti-TPO

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Q

Acute, severe illness can lead to

pregnancy has

A

abnormal thyroid labs (euthyroid sick syndrome)

inc thyroid binding protein

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Q

Differentiate bw gland/nodules for hyperT

Inc brightness
Bright spots, splotchy
Ring of brightness, dark center

A

Radioactive Iodine uptake/scan

diffuse, overactive
nodule
cold nodule (cancer)

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Q

Secondary hyperT due to

A

TSH secreting pituitary tumor

pituitary resistnace to NF

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