Chapter 32

Question 1

What 3 things does the thyroid secrete

Answer 1

Thyroxine T3
Tri-ildothyronine T4
Calcitonin

Question 2

What part of the body mobilizes calcium from the bones so it can be used by the body

Answer 2

Parathyroid

Question 3

How does the parathyroid gland play a role in cardiovascular, neuromuscular, and endocrine systems

Answer 3

Calcium is a big part of the action potential of cells

Question 4

What is a function of the thyroid gland

Answer 4

Regulates protein, lipids, and carb metabolism (weight)

Question 5

What is a function of the thyroid

Answer 5

Normal growth and development

Question 6

What is a function of the thyroid

Answer 6

Thermoregulation (hot and cold)

Question 7

What does it mean if you have hypothyroidism

Answer 7

Deficiency in thyroid hormones

Question 8

What is primary hypothyroidism

Answer 8

Abnormality in the thyroid gland itself

Question 9

What is secondary hypothyroidism

Answer 9

Pituitary gland is dysfunctional, does not secret thyroid stimulating hormone

Question 10

What is tertiary hypothyroidism

Answer 10

When the hypothalamus does not secret thyrotropin releasing hormone needed to maintain TSH and thyroid hormone levels

Question 11

Congenital hypothyroidism happens in which population

Answer 11

Children

Question 12

Is primary, secondary or tertiary hypothyroidism the most common

Answer 12

Primary

Question 13

In what population does myxedema occur (hypothyroidism)

Answer 13

Adults

Question 14

What is a goiter (hypothyroidism)

Answer 14

Enlargement of thyroid gland, caused by over stimulation of TSH on thyroid, TSH is elevated because there is no thyroid hormone in circulation

Question 15

Certain drugs with high amounts of iodine can cause hypothyroidism. What is a common drug

Answer 15

Amiodarone

Question 16

Symptoms of Hypothyroidism

Answer 16

Cold intolerance
Weight gain
Depression
Dry brittle hair and nails
Fatigue

Question 17

What does euthyroid mean

Answer 17

Normal thyroid levels

Question 18

What is the mechanism of action for thyroid replacement drugs

Answer 18

Replace what the thyroid cannot produce

Question 19

What foods should patients avoid when taking thyroid replacement drugs

Answer 19

Soy beans
Calcium
Walnuts
Fiber

Question 20

Can thyroid replacement drugs help treat goiters?

Answer 20

Yes

Question 21

T/F thyroid replacement drugs are often needed when the thyroid has been removed or destroyed by iodine

Answer 21

True

Question 22

Can thyroid replacement drugs be used during pregnancy

Answer 22

Yes

Question 23

When is thyroid replacement drugs contraindicated

Answer 23

MI
Adrenal insufficiency
Hyperthyroidism

Question 24

Adverse effects of thyroid replacement drugs

Answer 24

Cardiac dysrhythmias
Hyperthyroidism and all it’s symptoms

Question 25

Levothyroxine interacts with warfarin in what way

Answer 25

Enhances warfarin so lower the dose of warfarin when taking this

Question 26

Levothyroxine interacts with digoxin and insulin in what way

Answer 26

Reduces efficacy, increase dose of insulin and digoxin

Question 27

Levothyroxine interacts with epinephrine in what way

Answer 27

Makes the person more sensitive to epinephrine

Question 28

Can you take Levothyroxine at the same time as multivitamins or antacids

Answer 28

No. They reduce absorption of Levothyroxine in the GI tract

Question 29

Can you discontinue Levothyroxine instantly

Answer 29

No

Question 30

Can you take Levothyroxine at any time of day

Answer 30

Take at the same time each day to maintain levels. Take in morning to reduce insomnia

Question 31

What unit is Levothyroxine dosed in

Answer 31

mcg

Question 32

Can you switch brands of Levothyroxine

Answer 32

No. They are not equivalent to each other. NEVER CHANGE BRANDS

Question 33

What is Hyperthyroidism

Answer 33

Excessive thyroid hormones

Question 34

Is hyperthyroidism or hypothyroidism more common

Answer 34

Hypothyroidism

Question 35

What diseases can cause Hyperthyroidism

Answer 35

Graves’ disease Multi nodular Plummers disease Thyroid storm (stress/infection)

Question 36

Symptoms of Hyperthyroidism

Answer 36

Diarrhea Flushing Increased appetite Muscle weakness Sleep disorders Altered menstrual flow Fatigue (insomnia) Palpitations Nervousness Heat intolerance Irritability Bulging eyes

Question 37

What thyroid drugs cause liver and bone marrow toxicity

Answer 37

Anti-thyroid drugs

Question 38

What are 2 ways to treat hyperthyroidism

Answer 38

Removal of thyroid Iodine destroys gland

Question 39

Should you take antithyroid drugs on an empty stomach or with food

Answer 39

With food

Question 40

What foods should be avoided with antithyroid drugs

Answer 40

Tofu, shell fish, turnips, iron, magnesium, iodized salt, aluminum

Question 41

Should you take thyroid replacement drugs with food or on an empty stomach

Answer 41

60 mins before food

Question 42

What is an adverse effect of antithyroid drugs that needs to be monitored

Answer 42

Leukopenia