Endocrinology Practice Questions

Question 1

On insulin administration, what change is expected in the extracellular fluid (ECF)?

Accepted Answer

Hypoglycemia

Answer

Hyperkalemia

Answer

Hyponatremia

Answer

Hypocalcemia

Question 2

Which of the following can cause an increase in growth hormone levels in blood?

Accepted Answer

Hypoglycemia

Answer

Cortisol

Answer

Glucose

Answer

Methylprednisolone

Question 3

Which of the following hormones will be affected most after the change in sex hormone binding globulin?

Accepted Answer

Testosterone

Answer

Progesterone

Answer

DHEA

Answer

Estrogen

Question 4

What is the best and most sensitive investigation for hypothyroidism ?

Accepted Answer

TSH levels

Answer

T3, T4 levels

Answer

TRH levels

Answer

Radioactive I2 uptake

Question 5

Which of the following statements about nateglinide is correct?

Accepted Answer

Taken just before a meal, it limits postprandial hyperglycemia in type 2 diabetes mellitus

Answer

It is a long-acting oral hypoglycemic drug

Answer

It can be used in patients with renal impairment with caution.

Answer

It acts by blocking K+ channels in pancreatic beta-cells.

Question 6

All the following mediate their action using cAMP as second messenger except:

Accepted Answer

Vasopressin

Answer

Glucagon

Answer

Dopamine

Answer

Corticotropin

Question 7

All the following  hormones have receptors on the plasma membrane of target tissues except:

Accepted Answer

Estradiol

Answer

Epinephrine

Answer

Glucagon

Answer

Thyrotropin

Question 8

Which of the following statements accurately describes G proteins?

Accepted Answer

Are associated with cellular membranes and play a crucial role in signal transduction.

Answer

Regulate second messengers like cyclic adenosine monophosphate (cAMP).

Answer

Play a role in the amplification of hormonal signals.

Answer

Consist of three subunits: alpha, beta, and gamma.

Question 9

Hypothalamus increases release of all hormones from the pituitary except ?

Accepted Answer

Prolactin

Answer

ACTH

Answer

TSH

Answer

FSH

Question 10

A 45-year-old man with a recent history of bizarre behavior is seen by a psychiatrist. On physical examination, the patient appears moderately obese with mild hypertension, facial acne, and fat accumulation in the supraclavicular fossae. Laboratory studies demonstrate neutrophilic leukocytosis, decreased lymphocytes, and absence of eosinophils, along with mild hypokalemia and mild metabolic alkalosis. The fasting serum glucose is within the reference range, but the OGTT shows glucose concentrations > 200 mg/dL. Laboratory studies also show a free urinary cortisol of 156 mg/24 hours. Which of the following questions would be of most help in establishing a diagnosis?

Accepted Answer

Are you receiving corticosteroids for some other disease?

Answer

Are you experiencing muscle weakness?

Answer

Do you have a family history of endocrine neoplasia?

Answer

Are you experiencing shortness of breath?

Endocrinology

Study Resources

Lessons

Questions

Flashcards

Lessons

Principles of Endocrine Regulation

Hypothalamus and Pituitary Gland

Thyroid Physiology

Adrenal Cortex and Medulla

Pancreatic Hormones and Glucose Metabolism

Calcium and Phosphate Homeostasis

Growth Hormone and Growth Factors

Endocrine Regulation of Metabolism

Hormone Receptors and Signaling

Assessment of Endocrine Function

Practice Questions

Flashcards

About Endocrinology for NEET-PG

Lessons in Endocrinology

Master Endocrinology