Biology

Endocrine and Metabolic Disorders

674 Questions

Endocrine and metabolic disorders focus on diseases caused by hormonal imbalances, such as goitre, diabetes mellitus, and hyperthyroidism. Test takers will find questions related to disease causes, diagnostic tests like Cushing's syndrome indicators, and clinical treatments. This is a crucial biology topic frequently asked in medical entrance and public service commission examinations.

Thyroid gland disordersGoitre causesDiabetes mellitus characteristicsHyperthyroidism treatmentsGrowth hormone deficiency

Endocrine and Metabolic Disorders Questions

Multiple choice

Which of the following conditions is caused by an excess of prolactin (PRL)?

  1. Galactorrhea

  2. Amenorrhea

  3. Infertility

  4. Hypothyroidism
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

An excess of prolactin (PRL) can lead to galactorrhea, characterized by the production of milk in non-lactating women.

Multiple choice

Which of the following conditions is caused by a deficiency of adrenocorticotropic hormone (ACTH)?

  1. Addison's disease

  2. Cushing's syndrome

  3. Hyperthyroidism

  4. Hypothyroidism
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A deficiency of adrenocorticotropic hormone (ACTH) can lead to Addison's disease, characterized by impaired production of cortisol by the adrenal glands.

Multiple choice

What is the purpose of the Glucose Tolerance Test (GTT)?

  1. To assess insulin resistance and glucose metabolism

  2. To measure thyroid hormone levels

  3. To evaluate adrenal gland function

  4. To diagnose pituitary disorders
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The GTT is used to assess glucose metabolism and insulin resistance by measuring blood glucose levels after a glucose challenge.

Multiple choice

Which test is used to diagnose Cushing's syndrome?

  1. Dexamethasone Suppression Test

  2. Thyroid Function Test (TFT)

  3. Adrenocorticotropic Hormone (ACTH) Stimulation Test

  4. Pituitary Function Test
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Dexamethasone Suppression Test is used to diagnose Cushing's syndrome by evaluating the adrenal glands' response to dexamethasone, a synthetic glucocorticoid.

Multiple choice

Which test is used to diagnose diabetes insipidus, a disorder characterized by excessive urination?

  1. Water Deprivation Test

  2. Thyroid Function Test (TFT)

  3. Adrenocorticotropic Hormone (ACTH) Stimulation Test

  4. Glucose Tolerance Test (GTT)
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Water Deprivation Test assesses the body's ability to concentrate urine and is used to diagnose diabetes insipidus.

Multiple choice

What is Charcot foot?

  1. A type of foot ulcer that occurs in people with diabetes

  2. A condition that causes the bones in the foot to become weak and deformed

  3. A type of arthritis that affects the feet

  4. A condition that causes the toes to become numb and tingly
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Charcot foot is a condition that occurs when the bones in the foot become weak and deformed. It is a serious complication of diabetes and can lead to amputation.

Multiple choice

Which of the following is a common cause of heart failure in cats?

  1. Hyperthyroidism

  2. Dilated Cardiomyopathy

  3. Hypertension

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Hyperthyroidism, dilated cardiomyopathy, and hypertension are all common causes of heart failure in cats.

Multiple choice

Which of the following is a common cause of type 1 diabetes in children?

  1. Autoimmune destruction of pancreatic beta cells

  2. Genetic predisposition

  3. Environmental factors

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Type 1 diabetes in children is caused by a combination of autoimmune destruction of pancreatic beta cells, genetic predisposition, and environmental factors.

Multiple choice

What is the most common endocrine disorder in older adults?

  1. Diabetes

  2. Hypothyroidism

  3. Hyperthyroidism

  4. Cushing's syndrome
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Hypothyroidism is the most common endocrine disorder in older adults, affecting approximately 10% of the population.

Multiple choice

What is the most common cause of hypothyroidism in older adults?

  1. Autoimmune disease

  2. Iodine deficiency

  3. Radiation therapy

  4. Medications
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Autoimmune disease is the most common cause of hypothyroidism in older adults, accounting for approximately 90% of cases.

Multiple choice

What is the most common cause of hyperthyroidism in older adults?

  1. Graves' disease

  2. Toxic multinodular goiter

  3. Thyroiditis

  4. Medications
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Graves' disease is the most common cause of hyperthyroidism in older adults, accounting for approximately 70% of cases.

Multiple choice

What is the most common cause of Cushing's syndrome in older adults?

  1. Adrenal tumor

  2. Pituitary tumor

  3. Ectopic ACTH production

  4. Medications
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Pituitary tumor is the most common cause of Cushing's syndrome in older adults, accounting for approximately 70% of cases.

Multiple choice

What is the most common cause of growth hormone deficiency in older adults?

  1. Pituitary tumor

  2. Head injury

  3. Radiation therapy

  4. Medications
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Pituitary tumor is the most common cause of growth hormone deficiency in older adults, accounting for approximately 70% of cases.

Multiple choice

What is the most common cause of diabetes insipidus in older adults?

  1. Head injury

  2. Pituitary tumor

  3. Kidney disease

  4. Medications
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Head injury is the most common cause of diabetes insipidus in older adults, accounting for approximately 50% of cases.

Multiple choice

Which of the following is a common geriatric condition characterized by excessive thirst and urination?

  1. Diabetes insipidus

  2. Diabetes mellitus

  3. Polyuria

  4. Nocturia
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Diabetes insipidus is a common geriatric condition characterized by excessive thirst and urination.