ENDOCRINOLOGY MCQs – Exercise 3

The multiple choice questions in this online test paper focuses on ENDOCRINOLOGY MCQ. If you are looking for self evaluation of your PG Medical entrance exam preparation then this online ENDOCRINOLOGY MCQ Test Paper will help you to evaluate your exam preparation.

Instruction for REPRODUCTIVE BIOLOGY/ REPRODUCTIVE MEDICINE / INFERTILITY MCQs:

1- This online MCQ practice test paper contains 30 questions.
2- Each question in this online practice test paper have four options and only 1 option is correct.
3- You can view the answers of this practice test paper after submitting the practice test paper.
Note: The answers mentioned at the end of practice test are the best suitable option as per our knowledge. Users shall cross-check the answers with their textbooks.

Q 1. hormonal agents that induce prolactin include

estrogens

antiandrogens

TRH

all of the above

Q 2. female: male ratio for microprolactinomas is

1:1

5:1

10:1

20:1

Q 3. loss of red pception is due to pressure on

optic nerve

optic chiasm

optic tract

all of the above

Q 4. cause of increase in prolactin includes

sleep

sexual orgasm

chest stimulation

all of the above

Q 5. least common hormone secreted by mixed tumors that secrete prolactin

ACTH

TSH

none of the above

Q 6. regarding prolactin (PRL) all are true except

peak serum levels occur between 4-6 AM

circulating half life of prolactin is 50 minutes

predominat central control mechanism is inhibitory

none of the above

Q 7. pituitary bright spot seen on MRI is due to presence of high content in posterior pituitary of

tryptophan

glucose

phospholipid

ascorbic acid

Q 8. lesion in which part of hypothalamus leads to elevated serum catecholamine and cortisol levels

anterior and preoptic hypothalamus

posterior hypothalamus

ventromedial nuclei

central hypothalamus

Q 9. lesion in which part of hypothalamus leads to hyperphagia and obesity

anterior and preoptic hypothalamus

posterior hypothalamus

ventromedial nuclei

central hypothalamus

Q 10. normal basal fasting prolactin level

<5µg/L

<10 µg/L

<15 µg/L

<20 µg/L

Q 11. following is abnormal feature of pituitary MRI

pituitary gland height is <8 mm in adults

convex upper aspect of adult pituitary

vertical pituitary stalk

slightly heterogeneous soft tissue consistency

Q 12. regarding prolactin (PRL) all are true except

normal adult serum PRL levels is 10-25 µg/L in women

normal adult serum PRL levels is 10-20 µg/L in men

prolactin secretion is pulsatile

prolactin secretory peaks occur during NREM sleep

Q 13. following produce ‘drug induced hyperprolactinemia’ by depleting catecholamines

alpha methyldopa

metoclopramide

chlorpromazine

reserpine

Q 14. lesion in which part of hypothalamus leads to hyperthermia

anterior and preoptic hypothalamus

posterior hypothalamus

ventromedial nuclei

central hypothalamus

Q 15. most common cause of prolactin level >200 µg/L is

pituitary stalk compression

prolactinoma

antipsychotic and antidepressant drugs

pregnancy and lactation

Q 16. central osmo receptors are located in which part of hypothalamus

Preoptic nuclei of hypothalamus

posterior hypothalamus

ventromedial nuclei

central hypothalamus

Q 17. following produce ‘drug induced hyperprolactinemia’ by blocking dopamine receptors

chlorpromazine

haloperidol

metoclopramide

all of the above

Q 18. following produce ‘drug induced hyperprolactinemia’ by inhibiting dopamine synthesis

alpha methyldopa

metoclopramide

chlorpromazine

haloperidol

Q 19. breast milk secretion is considered abnormal if persists for

>3 months after childbirth or discontinuation of breastfeeding

> 6 months after childbirth or discontinuation of breastfeeding

> 9 months after childbirth or discontinuation of breastfeeding

> 12 months after childbirth or discontinuation of breastfeeding

Q 20. most common pituitary hormone hypersecretion syndrome in both males and females is

acromegaly

hyperprolactinemia

secondary hyperthyroidism

cushing’s syndrome

Q 21. cut off diameter for defining microadenoma of pituitary gland is

<.2 cm

<.5 cm

<.8 cm

<1.0 cm

Q 22. female: male ratio for macroadenomas is

1:1

5:1

10:1

20:1

Q 23. features of sellar mass lesions involving optic chiasm include

loss of red perception

bitemporal hemianopia

scotoma

all of the above

Q 24. following is rare when an intrasellar mass expands

compression of intrasellar pituitary tissue

invasion of dura to lift the optic chisma

lateral invasion to impinge on cavernous sinus

bony erosion

Q 25. systemic disorder associated with hyperprolactinemia is

chronic renal failure

primary hypothyroidism

cirrhosis

all of the above

Q 26. presenting features of hyperprolactinemia in women include all except

reduced vertebral bone density

decreased libido

weight loss

hirsutism

Q 27. lesion in which part of hypothalamus leads to periodic hypothermia

anterior and preoptic hypothalamus

posterior hypothalamus

ventromedial nuclei

central hypothalamus

Q 28. what percentage of hyperprolactinemic women have galactorrhea

up to 80%

up to 85%

up to 90%

up to 95%

Q 29. following produce ‘drug induced hyperprolactinemia’ by inhibiting dopamine release

alpha methyldopa

metoclopramide

verapamil

reserpine

Q 30. false regarding nonadenomatous pituitary lesion includes

meningiomas are associated with bony hyperostosis

craniopharyngiomas may be calcified and are hypodense

gliomas are hyperdense on T2 weighted images

none of the above

ENDOCRINOLOGY MCQs – Exercise 3

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ENDOCRINOLOGY MCQs – Exercise 3

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