NU 126 Exam 5 Guide With
Complete Solution
What are the 8 major hormone secreting glands? - ANSWER hypothalamus
pineal
pituitary
thyroid
parathyroid
thymus
adrenal
islets of langerhans
Where are the parathyroid glands located? - ANSWER posterior surface of
the thyroid gland
what are the major thyroid hormones - ANSWER T3 , T4 and calcitonin
what do T3 and T4 represent - ANSWER iodine molecules
what is the function of T3 and T4 - ANSWER increase metabolism
what stimulates T3 and T4 - ANSWER decreased metoblism
what is the function of calcitonin - ANSWER Lowers blood calcium levels
lower reabsorption from bones to blood
,An iodine deficiency can cause: - ANSWER altered thyroid function
What is negative feedback? - ANSWER TSH controls the rate in which thyroid
releases thyroid hormone through a negative feedback system
If TSH is low, what are T3 and T4 - ANSWER high
Where is TSH released from? - ANSWER anterior pituitary
Where is TRH released from? - ANSWER hypothalamus
what is the process of thyroid hormone secretion? - ANSWER TRH -> TSH->
T3+T4
hypothalamus-> anterior pituitary-> thyroid
what should you do if the thyroid is enlarged upon assessment? - ANSWER
auscultate
what is a goiter and how may it be caused - ANSWER enlarged thyroid
commonly occurs with iodine deficiency
what does a goiter cause - ANSWER increased TSH, low levels of circulating
thyroid hormones
fine needle biopsy - ANSWER procedure that uses a fine needle to take a
small sample of tissue from a thyroid nodule seen on a thyroid scan
Thyroid scan - ANSWER scanner detects radioactivity and visualizes the
thyroid gland
radioactive iodine uptake - ANSWER Test to measure the amount of
radioactive iodine taken up by the thyroid gland; indicator of thyroid gland
function.
, if a patient has hyperthyroidism what would you expect from a radioactive
iodine uptake - ANSWER high uptake of iodine
if a patient has hypothyroidism what would you expect from a radioactive
iodine uptake - ANSWER low uptake of iodine
PT teaching prior to radioactive iodine uptake - ANSWER stop any thyroid
meds for 2 weeks before test as meds interfere with the test
what type of allergy may a patient react poorly to iodine? - ANSWER shellfish
What is hypothyroidism? - ANSWER hypo secretion of thyroid hormones (T3
and T4) resulting in decreased metabolic rate
what causes hypothyroidism - ANSWER hashimotos, RAI, thyroidectomy
primary hypothyroidism - ANSWER abnormality in the thyroid gland itself
-unable to produce adequate amounts of thyroid hormone (hashimotos)
secondary hypothyroidism - ANSWER failure of the pituitary gland to secrete
TSH
tertiary hypothyroidism - ANSWER failure of the hypothalamus to secrete
thyroid stimulating hormone
what would you expect the thyroid hormones to look like in a patient with
hypothyroidism? - ANSWER decreased T3 and T4 levels and elevated TSH
What is levothyroxine used for? - ANSWER Hypothyroidism
Levothyroxine dosing - ANSWER based on TSH level
take in AM, empty stomach, 4 hrs before other meds
what should you monitor someone taking levothyroxine for - ANSWER
Complete Solution
What are the 8 major hormone secreting glands? - ANSWER hypothalamus
pineal
pituitary
thyroid
parathyroid
thymus
adrenal
islets of langerhans
Where are the parathyroid glands located? - ANSWER posterior surface of
the thyroid gland
what are the major thyroid hormones - ANSWER T3 , T4 and calcitonin
what do T3 and T4 represent - ANSWER iodine molecules
what is the function of T3 and T4 - ANSWER increase metabolism
what stimulates T3 and T4 - ANSWER decreased metoblism
what is the function of calcitonin - ANSWER Lowers blood calcium levels
lower reabsorption from bones to blood
,An iodine deficiency can cause: - ANSWER altered thyroid function
What is negative feedback? - ANSWER TSH controls the rate in which thyroid
releases thyroid hormone through a negative feedback system
If TSH is low, what are T3 and T4 - ANSWER high
Where is TSH released from? - ANSWER anterior pituitary
Where is TRH released from? - ANSWER hypothalamus
what is the process of thyroid hormone secretion? - ANSWER TRH -> TSH->
T3+T4
hypothalamus-> anterior pituitary-> thyroid
what should you do if the thyroid is enlarged upon assessment? - ANSWER
auscultate
what is a goiter and how may it be caused - ANSWER enlarged thyroid
commonly occurs with iodine deficiency
what does a goiter cause - ANSWER increased TSH, low levels of circulating
thyroid hormones
fine needle biopsy - ANSWER procedure that uses a fine needle to take a
small sample of tissue from a thyroid nodule seen on a thyroid scan
Thyroid scan - ANSWER scanner detects radioactivity and visualizes the
thyroid gland
radioactive iodine uptake - ANSWER Test to measure the amount of
radioactive iodine taken up by the thyroid gland; indicator of thyroid gland
function.
, if a patient has hyperthyroidism what would you expect from a radioactive
iodine uptake - ANSWER high uptake of iodine
if a patient has hypothyroidism what would you expect from a radioactive
iodine uptake - ANSWER low uptake of iodine
PT teaching prior to radioactive iodine uptake - ANSWER stop any thyroid
meds for 2 weeks before test as meds interfere with the test
what type of allergy may a patient react poorly to iodine? - ANSWER shellfish
What is hypothyroidism? - ANSWER hypo secretion of thyroid hormones (T3
and T4) resulting in decreased metabolic rate
what causes hypothyroidism - ANSWER hashimotos, RAI, thyroidectomy
primary hypothyroidism - ANSWER abnormality in the thyroid gland itself
-unable to produce adequate amounts of thyroid hormone (hashimotos)
secondary hypothyroidism - ANSWER failure of the pituitary gland to secrete
TSH
tertiary hypothyroidism - ANSWER failure of the hypothalamus to secrete
thyroid stimulating hormone
what would you expect the thyroid hormones to look like in a patient with
hypothyroidism? - ANSWER decreased T3 and T4 levels and elevated TSH
What is levothyroxine used for? - ANSWER Hypothyroidism
Levothyroxine dosing - ANSWER based on TSH level
take in AM, empty stomach, 4 hrs before other meds
what should you monitor someone taking levothyroxine for - ANSWER
