Q: Which equation best represents the effect of insulin on blood glucose levels?

$$\Delta [Glucose] = [Glucose]_{initial} - [Insulin] \times k$$

Question 1

Which of the following is a primary endocrine disorder?

Accepted Answer

Graves' disease (too much thyroid hormone produced by the thyroid gland)

Question 2

A patient presents with symptoms of fatigue, low energy, and cold intolerance. Laboratory tests reveal low serum thyroxine ($$T_4) $$and elevated thyroid-stimulating hormone (TSH). What is the most likely diagnosis?

Accepted Answer

Primary hypothyroidism

Question 3

Which hormone is essential for normal linear bone growth in children and is produced by the anterior pituitary?

Accepted Answer

Growth hormone (GH)

Question 4

A child with growth hormone deficiency is most likely to present with which of the following?

Accepted Answer

Short stature with normal body proportions

Question 5

Which of the following is a common cause of short stature in children?

Accepted Answer

Thyroid hormone deficiency

Question 6

Which hormone produced by the thyroid gland lowers blood calcium levels by promoting calcium deposition in bones?

Accepted Answer

Calcitonin

Question 7

A patient with Graves' disease is at risk for developing which life-threatening complication characterized by high fever, tachycardia, and delirium?

Accepted Answer

Thyroid storm

Question 8

Which of the following is a key feature of Addison's disease?

Accepted Answer

Low cortisol and skin hyperpigmentation

Question 9

Which hormone is responsible for raising blood sugar by stimulating the liver to release glucose?

Accepted Answer

Glucagon

Question 10

A patient with type 1 diabetes is found unconscious with fruity breath, rapid breathing, and high blood glucose. What is the most likely diagnosis?

Accepted Answer

Diabetic ketoacidosis (DKA)

Question 11

Which of the following best describes the pathophysiology of type 2 diabetes mellitus?

Accepted Answer

Insulin resistance and relative insulin deficiency, often linked to obesity

Question 12

Which test measures average blood glucose over the past 2-3 months?

Accepted Answer

Hemoglobin A1C

Question 13

A patient with diabetes experiences morning hyperglycemia after nighttime hypoglycemia. Which phenomenon explains this?

Accepted Answer

Somogyi effect

Question 14

Which of the following is a vascular complication of diabetes mellitus affecting small blood vessels?

Accepted Answer

Retinopathy

Question 15

Which hormone produced by the adrenal cortex is essential for survival in stress situations and helps regulate metabolism and inflammation?

Accepted Answer

Cortisol

Question 16

A patient with Cushing's syndrome is most likely to have which of the following laboratory findings?

Accepted Answer

High cortisol and high ACTH

Question 17

Which of the following is a common symptom of hyperthyroidism?

Accepted Answer

Heat intolerance

Question 18

Which equation best represents the effect of insulin on blood glucose levels?

Accepted Answer

$$\Delta [Glucose] = [Glucose]_{initial} - [Insulin] 	imes k$$

Question 19

A patient with poorly controlled diabetes develops a foot ulcer. Which combination of factors most likely contributed to this complication?

Accepted Answer

Nerve damage (neuropathy) and poor blood flow (microvascular disease)

Question 20

Which hormone is produced by the adrenal cortex and primarily regulates sodium, potassium, and water balance?

Accepted Answer

Aldosterone

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