17 Questions
What is the primary diagnostic marker for congenital adrenal hyperplasia (CAH) caused by 21-hydroxylase deficiency?
17-hydroxyprogesterone
Which enzyme deficiency is associated with elevated 11-deoxycortisol levels?
11β-hydroxylase deficiency
Which of the following is NOT a characteristic of catecholamines?
Act as neurotransmitters
Which of the following is the most important substance produced by the adrenal medulla?
Epinephrine
What is the primary function of epinephrine (adrenaline)?
Mobilizing energy stores by converting glycogen to glucose
Which type of adrenal insufficiency is characterized by low cortisol, low aldosterone, and high androgenic hormones?
Congenital adrenal hyperplasia
Which of the following is a clinical manifestation of androgen excess in infant girls?
Ambiguous genitalia
Which of the following is a diagnostic marker for congenital adrenal hyperplasia (CAH)?
Elevated plasma DHEAS and DHEA levels
Which of the following is a potential cause of adrenal insufficiency?
Addison's disease
In men, excess androgens converted to estrogens can lead to which of the following effects?
Infertility with feminizing effects
Which of the following statements is true regarding DHEA and DHEAS?
DHEAS has a tighter binding to albumin compared to DHEA
Which of the following is a symptom of glucocorticoid deficiency in adrenal insufficiency?
Hypoglycemia
What is the most common cause of adrenal insufficiency mentioned in the text?
Infection (tuberculosis)
In congenital adrenal hyperplasia (CAH), the levels of DHEA/DHEAS are often elevated by how much?
5-fold to 10-fold
Which of the following best describes congenital adrenal hyperplasia (CAH)?
A group of autosomal recessive disorders disrupting cortisol production due to enzyme deficiency
Which type of adrenal insufficiency occurs when the hypothalamus fails to produce sufficient amounts of CRH?
Tertiary adrenal insufficiency
Which of the following symptoms is associated with mineralocorticoid deficiency in adrenal insufficiency?
Hypercalcemia
Learn about the symptoms of congenital adrenal hyperplasia (CAH) and adrenal insufficiency, as well as their causes. Explore manifestations such as high DHEA/DHEAS levels, glucocorticoid and mineralocorticoid deficiency symptoms. Understand the various factors leading to adrenal insufficiency.
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