Final Exam Flashcards
(321 cards)
What factors influence endocrine function?
1) Aging
2) Chronic diseases
3) Medications/supplements
4) Stress
5) Environment
6) Genetics
In the endocrine system, what kind of disorder is it characterized as if there is a problem in the target organ?
Primary
In the endocrine system, what kind of disorder is it characterized as if there is a problem in the pituitary?
Secondary
In the endocrine system, what kind of disorder is it characterized as if there is a problem in the hypothalamus?
Tertiary
What is the best initial thyroid test that can be done?
TSH
What does an increased TSH result mean?
Hypothyroid state –> thyroid not making enough hormone, primary problem
What does a decreased TSH result mean?
Hyperthyroid state –> sometimes d/t pituitary problem
What is the desired TSH range?
0.4 - 4.2
Name the thyroid test:
1) Bound
2) Free
T4
Name the thyroid test:
Can measure for hyperthyroid state, but not hypo
T3
What is the most accurate measurement of thyroid function?
TSH & T4
Name the thyroid test:
Can give insight as to what is causing the problem with the thyroid
Thyroid antibody test
Name the thyroid test:
1) Based on ability of thyroid gland to uptake iodine
2) Can see where iodine is going
Radioactive Iodine Uptake
What does an increased thyroid uptake result on a radioactive iodine uptake test indicate?
Hyperthyroid
What does a decreased thyroid uptake result on a radioactive iodine uptake test indicate?
Hypothyroid state
What are the 2 types of hypothyroidism?
1) Cretinism (infant)
2) Myexedema (adult)
What causes hypothyroidism?
1) Autoimmune diseases (hashimotos thyroiditis)
2) Surgical removal
3) Radiation
4) Drug therapy
5) Pituitary gland malfunction (secondary)
6) Too much or too little iodine
What is the most common primary cause of hypothyroidism?
Hashimotos (autoimmune)
What drugs can cause hypothyroidism?
Amiodarone & lithium
What are mild sx of hypothyroidism?
1) Mild cold sensitivity
2) Lethargy
3) Forgetfulness
4) Depression
5) Dry skin & hair, brittle nails
6) Weight gain
7) Anorexia (d/t increased Ca+)
8) Mental disturbances
***Sx can occur slowly over months to years
What are the extreme sx of hypothyroidism?
1) Abnormally fatigued & apathetic (won’t seek tx)
2) Obesity
3) Puffy & edematous
4) Hair grows in dry & sparse
5) Skin is dry, flaky, inelastic
6) Severe cold intolerance
7) Constipation
8) Decreased sweating
9) Increased susceptibility to infection
10) Cardiac comps
True or false:
Extreme hypothyroidism can cause hypersensitivity to narcotics, barbituates, and anesthetics which can lead to respiratory depression
True
True or False:
Extreme hypothyroidism can lead to cardiac complications
True
True or False:
Extreme hypothyroidism can cause increased serum triglycerides & cholesterol which can lead to clogged arteries
True