Quiz Questions

Question 1

The tropic hormone secreted from the anterior pituitary that stimulates T4 (thyroxine) release from the thyroid gland is?

Answer 1

TSH (thyrotropin, thyroid stimulating hormone)

Question 2

Which of the following types of hormones are easily absorbed through the skin via gel, cream, or patch?

Answer 2

Steroid hormones

Question 3

Human growth hormone (HGH) exerts its effects on cells via?

Answer 3

IGF-1 (insulin like growth factor)

Question 4

25 yo F with 4 mo old son. 2 mo after delivery the pt had DEC milk production. Concom: fatigue, DEC libido, ABN dry skin. Exam: DEC public/axillary hair. Dx?

Answer 4

Sheehan’s syndrome

Question 5

A surge in which anterior pituitary hormone triggers ovulation?

Answer 5

LH (luteinizing hormone)

Question 6

Severing the neural connections btwn the hypothalamus and pituitary would affect the secretion of which hormone?

Answer 6

Oxytocin

Question 7

Agents that are secreted by a cell and act only on nearby or neighbor cells are called?

Answer 7

Paracrine agents

Question 8

42 yo male PTC for “sugar problem”. FBG 136 mg/dL and 142 mg/dL. ROS: wt gain, trouble speaking, vision issues x several months. Favorite hat is too small on him. Which visual field deficit would appear on CN exam?

Answer 8

Bitemporal hemianopsia (lesion such as pituitary adenoma compression optic chiasm) leading to loss of vision to the lateral fields.

Question 9

True/False. Melatonin acts as an immunomodulator.

Answer 9

True

Question 10

Melatonin is synthesized from what amino acid?

Answer 10

Tryptophan that makes Serotonin that makes Melatonin

Question 11

Melatonin is secreted from what cell type?

Answer 11

Pinealocytes

Question 12

True/False. Melatonin levels are most elevated during the middle of the day.

Answer 12

FALSE. Most elevated during the evening and early morning hours

Question 13

True/False. Melatonin acts on the peripheral melatonin receptors to maintain body-wide circadian rhythms.

Answer 13

TRUE

Question 14

What hormone out of the list does not require a carrier protein to be transported in the plasma: Pregnenolone, Insulin, 1,25(OH)2Vitamin D, T4, Cortisol?

Answer 14

Insulin does not need a carrier protein

Question 15

What hormone binds directly to intracellular/intranuclear receptors to exert its actions on cell function?

(Insulin, T4, TSH, EPI, Calcitonin)

Answer 15

T4

Question 16

True/False: Pituitary micro adenomas are often managed medically using dopamine antagonists.

Answer 16

FALSE

Question 17

True/False: Pituitary adenomas can be life-threatening.

Answer 17

TRUE

Question 18

True/False: Hypogonadism is a frequent manifestation of pituitary adenomas

Answer 18

TRUE

Question 19

True/False: Achondroplastic dwarfism is not the result of an endocrine d/o.

Answer 19

True

Question 20

True/False: Mass effects from pituitary adenomas decrease intracranial pressure.

Answer 20

False, they increase!

Question 21

Dopamine agonists (i.e. Cabergoline) have what effects on prolactin secretion from the anterior pituitary?

Answer 21

Decreases prolactin release

Question 22

What condition is most commonly found in obese female with a Hx of multiple pregnancies and HTN?

Answer 22

Empty sella syndrome