Free Endocrine Pathology Question and Answers

Question 1

A patient had a blood test done, and it was found that the patient has very low sodium levels. The fact that the patient just had surgery is also known. In addition, he also seems to have a lung small cell tumor. Which of the following conditions has the strongest connection to the patient's illness?

Accepted Answer

Diabetes insipitus

Answer

Small cell lung tumors are notorious for causing paraneoplastic syndromes, which are disorders triggered by an altered immune response to a tumor or by substances produced by the tumor. While often associated with SIADH, which causes hyponatremia, these tumors can broadly impact endocrine regulation. Diabetes Insipidus, characterized by issues with antidiuretic hormone (ADH) production or kidney response, represents a significant disruption in fluid balance that can be linked to various systemic conditions, including malignancies.

Question 2

Lethargy, exhaustion, aversion to the cold, dry skin and hair, hoarseness of voice, and weight gain are symptoms that a patient exhibits. He also exhibits insanity, and it seems as though his pulse rate is lower than usual. Which of the following is not a result of the symptoms that are currently present?

Accepted Answer

Increased iodine levels

Answer

The described symptoms (lethargy, cold aversion, dry skin, weight gain, low pulse, hoarseness) are classic signs of hypothyroidism. Hypothyroidism can be caused by iodine deficiency or Hashimoto's disease, and if severe and congenital, it leads to cretinism. Therefore, increased iodine levels would not cause these symptoms; in fact, they are often a treatment for iodine deficiency-induced hypothyroidism, or excess iodine can sometimes cause hypothyroidism in susceptible individuals, but it's not a result of the symptoms.

Question 3

Weight loss, polyphagia, polydypsia, increased fatigue, vomiting, and hyperventilation are all symptoms a patient exhibits. He is a young man, and his parents have been identified as having the same illness. Which of the following etiological factors is most frequently linked to this disease in elderly populations?

Accepted Answer

Obesity

Answer

The symptoms (weight loss, polyphagia, polydipsia, fatigue, vomiting, hyperventilation) are characteristic of uncontrolled diabetes, likely Type 1 given the 'young man' and family history. However, the question specifically asks about the most frequent etiological factor in elderly populations. In elderly populations, Type 2 Diabetes Mellitus is far more prevalent, and its strongest etiological link is obesity.

Question 4

A patient shows up with goiter, exopthalmosis, sweating, palpitations, tachycardia, tremors, lid lag, and other symptoms. A thyroid scan reveals what appears to be more iodine than usual. What is the disease's pathogenesis?

Accepted Answer

Autoimmune mediated

Answer

The symptoms (goiter, exophthalmos, sweating, palpitations, tachycardia, tremors, lid lag) are classic signs of hyperthyroidism, specifically Graves' disease. Graves' disease is an autoimmune disorder where the body produces antibodies that stimulate the thyroid gland, leading to excessive thyroid hormone production. The 'more iodine than usual' on a scan likely refers to increased uptake, characteristic of an overactive thyroid.

Question 5

A patient is diagnosed with diabetes mellitus, hypertension, arthritis, increased skeletal and soft tissue growth, and menstruation irregularities. Which of the following levels would rise after oral glucose administration?

Accepted Answer

GH and IGF

Answer

The symptoms (diabetes mellitus, hypertension, arthritis, increased skeletal and soft tissue growth, menstrual irregularities) are classic for acromegaly, a condition caused by excessive growth hormone (GH) production. In healthy individuals, oral glucose suppresses GH levels. However, in acromegaly, GH levels remain elevated or even paradoxically rise after an oral glucose tolerance test, and consequently, IGF-1 levels (which are stimulated by GH) also remain high.

Endocrine Weight Loss Practice Test

Endocrine Weight Loss Practice Test

Free Endocrine Pathology Question and Answers