Endocrine 1 Flashcards

Exam 3 (46 cards)

1
Q

What are the 3 secreting pituitary tumors?

A

growth hormone, ACTH, prolactin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are diseases/indications for GH?

A

Turner syndrome, normal GH but delayed growth, intrauterine growth retardation, muscle augmentation in the elderly.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Adverse effects of GH

A

myalgia, arthralgia, glucose intolerance, hypothyroidism

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

GH excess if before epiphyseal plate closure

A

gigantism

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

GH excess after epiphyseal plate close

A

acromegaly

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are issues in acromegaly in adults?

A

glucose intolerance, cardiac enlargement, htn, renal failure, soft tissue swelling

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What are two options for treating GH excess disorders?

A

GH inhibiting hormone, GH receptor antagonist

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Indications for somatostatin agonists include

A

utility in acromegaly & carcinoid syndrome; growth limitations

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the main indication for GH receptor blockade?

A

non-responsive acromegaly

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Function of prolactin hormone

A

lactation, stress, sexual, fluid balance, immunologic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

typical hyperprolactinema cases in adult females:

A

amenorrhea, galactorrhea

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

typical hyperprolactinema cases in adult males:

A

reduced libido, muscle mass decrease, reduced facial hair growth, ED, gynecomastia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Most common cause of hyperprolactinemia is drug induced?

A

anti-psychotic agents

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

In a psychotic patient, what drug is contraindicated?

A

dopamine agonists

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the best choice for hyperprolactemia?

A

cabergoline

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What are the adverse effects of dopamine agonists?

A

nausea, orthostatic hypotension. slight increased risk of HTN/CVA

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What amino acid is iodinated into T3 and T4?

A

tyrosine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What thyroid hormone stimulates and enhances cell function in everything?

A

T3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

An excess of T3/T4 produces symptoms and signs of ____ _____ excess

A

sympathetic agonist

20
Q

In older patients, it is important to not advance levothyroxine dosage because of what?

A

it increases metabolism and oxygen requirements

21
Q

For pt >65 y/o, hypothyroidism tx is ___

A

“low and slow”

22
Q

What is the lag time for thyroid-pituitary axis?

23
Q

What are the adverse effects of thyroxine?

A

symptoms of hyperthyroidism

24
Q

Hyperthyroidism tx (3)

A
  1. control symptoms via beta adrenergic blocker
  2. prevent thyroid storm
  3. definitive tx
25
Best choice beta blocker for hyperthyroidism
propanolol
26
This is an anti-thyroid agent that blocks the synthesis of T3/4 and needs 3-4 wks to deplete T3/4
Thioamides
27
This anti-thyroid med is the best choice for pregnant women
propylthiouracil
28
This anti-thyroid med prevents the reuptake of iodide.
Potassium perchlorate- anion inhibitor
29
What can anion inhibitors cause?
aplastic anemia
30
This anti-thyroid med suppresses the T3/4 release and has a quick onset
iodides
31
When do you avoid iodides?
radioactive iodine use is likely
32
What blocks T4 to T3 conversion?
iodinated contrast media
33
This med destroys thyroid in a few weeks and is safe for > 30 but is contraindicated in pregnancy
Radioactive Iodine I131
34
What are the symptoms of the thyroid storm?
high fever, tachy, d/v/d, coma
35
What is the thyroid storm tx?
1. hospitalize 2. propanolol 3. diltiazem 4. potassium iodide 5. PTU 6. hydrocortisone
36
What are the big androgen adversities?
increased hematocrit - vascular thrombosis increased libido- increased aggressiveness
37
What are the indications of aromatase inhibitors?
breast cancer tx, breast cancer prevention, ovulation induction
38
This anti-fungal blocks steroidogenesis and has a drug interaction with CYP 450 inhibitors
ketoconazole
39
How does finasterid (propecia) work?
blocks T to DHT
40
Indications for antiandrogen utilization
women: hirsutism, masculinization, PCO men: balding, bph, prostate cancer
41
How is T converted to DHT?
5-alpha reductase
42
In BPH and male pattern baldness, medical tx are :
5-alpha reductase inhibitors
43
Most commonly rx 5-alpha reductase inhibitors
finasteride, dutasteride
44
Androgen caution in pregnancy
masculinization of a female fetus
45
special caution in pregnancy regarding anti-androgens
incomplete masculinization of a male fetus
46
Taking androgens and/or anti-androgens can produce what adverse effect in pregnancy?
ambigouous genitalia