Q: Which equation best represents the calculation for plasma osmolality, which is often altered in diabetes insipidus?

$$\text{Plasma Osmolality} = 2 \times [Na^+] + \frac{[Glucose]}{18} + \frac{[BUN]}{2.8}$$

Q: Which of the following equations best represents the calculation for Body Mass Index (BMI), a risk factor for type 2 diabetes?

$$\text{BMI} = \frac{\text{weight (kg)}}{\text{height (m)}^2}$$

Question 1

Which of the following is a primary symptom of hyperthyroidism?

Accepted Answer

Heat intolerance and tachycardia

Question 2

Cretin's disease is most commonly associated with which endocrine disorder?

Accepted Answer

Hypothyroidism

Question 3

A patient presents with fatigue, weight gain, and dry skin. Laboratory tests reveal low levels of thyroid hormones. Which condition is most likely?

Accepted Answer

Hashimoto's thyroiditis

Question 4

Which of the following is NOT a symptom commonly seen in Hashimoto's thyroiditis?

Accepted Answer

Weight loss

Question 5

Diabetes insipidus is characterized by which of the following?

Accepted Answer

Deficiency of antidiuretic hormone (ADH)

Question 6

Which equation best represents the calculation for plasma osmolality, which is often altered in diabetes insipidus?

Accepted Answer

$$	ext{Plasma Osmolality} = 2 	imes [Na^+] + \frac{[Glucose]}{18} + \frac{[BUN]}{2.8}$$

Question 7

Type 1 diabetes mellitus is primarily caused by which of the following mechanisms?

Accepted Answer

Autoimmune destruction of pancreatic beta cells

Question 8

Which of the following is a classic symptom of diabetes mellitus, and is defined as excessive thirst?

Accepted Answer

Polydipsia

Question 9

A 45-year-old patient is diagnosed with type 2 diabetes mellitus. Which of the following is the most common underlying cause?

Accepted Answer

Insulin resistance

Question 10

Which of the following is NOT a main complication seen in gestational diabetes?

Accepted Answer

Autoimmune thyroid destruction

Question 11

A patient with diabetes mellitus presents with frequent urination, excessive thirst, and increased appetite. Which terms best describe these symptoms?

Accepted Answer

Polyuria, polydipsia, polyphagia

Question 12

Which of the following best describes the pathophysiology of diabetes insipidus?

Accepted Answer

Deficiency or insensitivity to antidiuretic hormone (ADH)

Question 13

Which of the following laboratory findings is most consistent with untreated type 1 diabetes mellitus?

Accepted Answer

High blood glucose and low insulin

Question 14

A patient with Hashimoto's thyroiditis is most likely to develop which of the following complications if left untreated?

Accepted Answer

Myxedema coma

Question 15

Which of the following is a distinguishing feature between diabetes mellitus and diabetes insipidus?

Accepted Answer

Diabetes mellitus is characterized by hyperglycemia, while diabetes insipidus is not.

Question 16

Which of the following is a common long-term complication of poorly controlled diabetes mellitus?

Accepted Answer

Nephropathy

Question 17

A patient with type 2 diabetes mellitus is prescribed metformin. What is the primary mechanism of action of this drug?

Accepted Answer

Increases insulin sensitivity in peripheral tissues

Question 18

Which of the following equations best represents the calculation for Body Mass Index (BMI), a risk factor for type 2 diabetes?

Accepted Answer

$$	ext{BMI} = \frac{	ext{weight (kg)}}{	ext{height (m)}^2}$$

Question 19

Which of the following is a major risk factor for developing gestational diabetes?

Accepted Answer

Obesity and family history of diabetes

Question 20

A patient with diabetes mellitus is experiencing excessive hunger. Which term best describes this symptom?

Accepted Answer

Polyphagia

Endocrine Disorders: Study Guide for Anatomy & Physiology

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