PHARMA adrenocorticoids And Antagonists Flashcards

0
Q

Normal amt cortisol secreted daily

A

10-20 mg following pulses of acth

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1
Q

What is compound f

A

Cortisol

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2
Q

Binds about 90% of circulating cortisol

A

Cortisol binding globulin

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3
Q

Metabolite of cortisol measured in urine

A

Dihydroxy ketone

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4
Q

Catabolic effect of cortisol on bone

A

Osteoporosis - major limitation in tx use of glucocorticoid

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5
Q

Characterized by hypotension, hyperpigmentation and fasting hypoglycemia

A

Chronic adrenocortical insufficiency (addisons disease)

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6
Q

Tx for addisons disease

A

Hydrocortisone

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7
Q

How to protect fetus from congenital adrenal hyperplasia

A

DEXAMETHASONE to mother

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8
Q

11 hydroxylation defect in CAH causes what?

A

Large amt of deoxycorticosterone

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9
Q

If 17 hydroxylation is the defect in CAH

A

Hypogonadism!!

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10
Q

Tx for congenital adrenal hyperplasia

A

ORAL hydrocortisone

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11
Q

Bilateral adrenal hyperplasia is

A

Cushings syndrome

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12
Q

Tx of cushings syndrome

A

IV soluble hydrocortisone (300 mg) on the day of SURGERY

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13
Q

Primary aldosteronism

A

Conn’s syndrome / adrenal adenoma

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14
Q

Cause of secondary aldosteronism

A

Lots of reenin and angiotensin ii

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15
Q

Tx for secondary aldosteronism

A

FLUDROCORTISONE

DEOXYCORTICOSTERONE ACETATE

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16
Q

Purpose of DEXAMETHASONE suppression test

A

To diagnose cushings syndrome and diff dx of depressive psychiatric states

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17
Q

How to distinguish between hypercortisolisn due to anxiety and alcoholism (pseudocushings syndrome)

A

Combined test of DEXAMETHASONE and standard CRH test

18
Q

Corticosteroid with increased transfer across placenta

A

Betamethasone

19
Q

Betamethasone clinical use

A

Stimulate lung maturation in premature fetus

20
Q

Daily dose of 100 mg hydrocortisone for MORE THAN 2 WEEKS

A

Iatrogenic cushing syndrome

21
Q

3 mineralocorticoids

A

Aldosterone
Deoxycorticosterone
Fludrocortisone

22
Q

Precursor of aldosterone

A

Deoxycorticosterone

23
Q

Synthetic corticosteorid with both gluco and mineralocorticoid activity

A

Fludrocortisone

24
Oral dose of fludrocortisone
0.1 mg 2-7x per week
25
Blocks conversion of cholesterol to pregnenolone
Aminoglutethimide
26
Potent non selective inhibitor of adrenal and gonadal steroid synthesis
Ketoconazole
27
Ketoconazole adverse effect
Hepatotoxic
28
Selective inhibitor of steroid 11-hydroxylation
Metyrapone
29
Tx for pregnant women with cushings syndrome
Metyrapone
30
Test for ADRENAL function using metyrapone
Blood levels of 11-deoxycortisol | Urine excretion if 17-hydroxycorticoids
31
Metyrapone test for PITUITARY function
Blood levels of ACTH and 11-deoxycorticosteroid | Or Urine excretion if 17-hydroxycorticosteroids
32
3b-17 hydroxysteroid dehydrogenas inhibitor
Trilostane
33
Blocks 17a hydroxylas and 17,20 lyase
Arbiraterone
34
Antagonist of steroid receptor, causing generalized glucocorticoid resistance
Mifepristone
35
Non selective cytotoxic action on adrenal cortex in dogs
Mitotane (my tota/puppy)
36
Slow onset tx for primary aldosteronism
Spironolactone
37
Diagnostic use of spironolactone
Aldosteronism in hypokalemic patients with hpn
38
Spironolactone use in surgery
Reduce incidence of cardiac arrhythmia
39
Tx for women with hirsutism
Spironolactone
40
Aldosterone antagonist approved tx for HPN
Epleronone
41
Epleronone adverse effect
Mild hyperkalemia
42
Progestin in oral contraceptives
Drospirenone