thyroid Flashcards
What 3 hormones are produced by the thyroid
T3 triiodothyronine and T4 Thyroxine & amp; calcitonon
What mineral is key to thyroid hormone production
Iodine
TSH is called what and what does it do?
Thyrotropin. It is a thyroid stimulating hormone.
What is the difference between exocrine and endocrine glands and what type are the pitutary, thyroid, sex glands, and adrenal glands
Endocrine glands secrete hormones directly into the blood stream, exocrine glands secrete through ducts
The pituitary, thyroid, adrenal, and sex glands are endocrine glands.
What is BMR and what gland is responsible for it
Basic metabolic rate and this is controlled by they thyroid gland
The Hypothalamus Secretes TRH. What is TRH and what does it do
TRH is thyrotropin releasing hormone
TRH stimulates the anterior Pituitary to secrete TSH
TSH is Thyroid stimulating hormones
TSH Causes the Thyroid to secrete three hormones, what are they
T3- Triiodothyronine
T4 - Thyroxine
Calcitonin
T3 and T4 are regulated by what system and what do they do
T3 & T4 are reglated by a negative feed back system so when they get too high production stops and when its too low it starts.
T3 and T4-
- Control cellular metabolism
- Influence cell replication
- Important in Brain and normal growth
Calcitonin does what
It is secreted when calcium levels in the blood Serum increase.
It reduces Serum Calcium levels by stimulating calcium absorption by the bones.
Primary Responsibilty is CALCIUM REGULATION IN THE BODY
Assessment of the thyroid includes
Inspection and Palpation of the gland for enlargement for tenderness nodules
Auscultation for the presence of a Bruit.
*Presence of a bruit is a bad symptom due to vascularity of the thyroid*
What are some diagnostic tests for the thyroid?
The number one Diagnostic test for Thyroid is the levels of TSH.
Serum free T4 is done after to confirm abnormal TSH test
Tests for THYROID antibodies increase with autoimmune thyroid diseases
Iodine tracing with iodine uptake testing
FNA- sampling
Due to thyroids use of iodine, what is important
Dietary Idodine is very imperative because our body does not produce iodine on its own. Many areas Western NY especially must eat supplemental Iodine. In most area’s Iodine is added to salts.
When tested what is the abnormal indicatior for the thyroid
Elevated TSH
what are some nursing implications related to the thyroid
Medications containg Iodine may affect testing results
as such a complete medication history is imperative as well as OTC meds
What are some examples of meications that may contain Iodine
Contrast Agents
antiseptics
Multivitamins
amiodarone
estrogens
asparin (asa)
Iodine
Heparin
Betadine
PTU(Propylthiouracil)
