Hypo and Hyperthroid Flashcards
Normal TSH
0.47-4.68
Hypothroid
TSH Low
Check FT4 for definitive should be elevated
Hyperthroid
TSH low
check T 3 difiniative
complicaion of hyperthroid
Thyroid Storm
causes: surgery, infection, trauma, iodine load
signs and symptoms;
fever, tachy, increased blood glucose, hypertension, resp distress, N &V
Hypothyroid complications
Myxedema
low T4
TSH normal, low or high
signs and symptoms
hypothermic
low NA
low BG
low RR
low HR
CHF
Anatomy impacting thyroid
Hypothalamus
Pituitary gland
Hypothalmus
control pituitary hormones by releasing hormones
Pitutary gland
master gland
anterior
posterior
Anterior Pituitary
TSH
Prolactin
GH
ACTH
LH
posterior pitutary
ADH
oxytocin
Thyroid function
T4=inactive contains four iodine atoms
major hormone secret4ed
T3=converted from T4 revolves one iodine atom
TSH= released after being activated from the hypothalamus
Activated in the pituitary, l
less T4, more TSH
More T4 less TSH
FT4 or T3 is unbound to
enter body’s tissues
Somatostain
released from hypothalamus
ability to convert TSH release
acts and patrols in different parts of the body