1.
The Pituitary Gland
Correct Answer
A. Has the central role of regulating most endocrine glands
Explanation
The pituitary gland is often referred to as the "master gland" because it plays a central role in regulating most other endocrine glands in the body. It secretes hormones that control the functions of other glands, such as the thyroid, adrenal glands, and reproductive organs. These hormones help to maintain homeostasis and regulate various bodily processes, including growth, metabolism, and reproduction. Therefore, the statement that the pituitary gland has the central role of regulating most endocrine glands is correct.
2.
Select the true statements
Correct Answer(s)
B. Hyperpituitarism may lead to hypopituitarism via mass effects
C. Hyperpituitarism is classified by excessive secretion of tropHic hormones.
Explanation
Dr. boucher talked about two ways to classify proteins ; one that diffuse across the plasma membrane (steroids) and interact w/ cell surface receptors (peptide hormones and small molecules).
The last option is due to HYPOpituitarism
3.
Causes of Hypopituitarism include ...
Correct Answer(s)
A. Sheehan syndrome
B. Ablation or radiation
C. Ischemic necrosis of the anterior pituitary
Explanation
The last two options result in Hyperpituitarism
4.
The thyroid
A. Operates under Positive feedback control
B. Increases the basal metabolic rate
C. Is controlled by free calcium in the blood not by the hypothalamus or pituitary gland
Correct Answer
B. B
Explanation
Option C refers to the parathyroid glands
5.
The anterior pituitary releases _____ which stimulates the thyroid gland to release T4 and ____
Correct Answer
TSH, T3
Explanation
The anterior pituitary gland releases TSH (thyroid-stimulating hormone) which stimulates the thyroid gland to release T4 (thyroxine) and T3 (triiodothyronine). TSH acts on the thyroid gland to promote the production and secretion of T4 and T3, which are important hormones involved in regulating metabolism, growth, and development in the body. T3 is the more biologically active form of thyroid hormone, while T4 is converted into T3 in various tissues. Therefore, TSH plays a crucial role in maintaining thyroid hormone levels and ensuring proper physiological functioning.
6.
Thyrotoxicosis...
Correct Answer(s)
B. Is also known as hyperthyroidism
C. Maybe caused by extra-thyroidal sources as well as an excessive intake of thyroid hormone
D. Occurs in Grave's disease due to autoimmune stimulation of thyroid glands
Explanation
clinical Manifestations: Heat intolerance, weight loss, warm skin, GI: hypermotility/diarrhea. Cardiac: palpitations/ tachycardia. Neuromuscular; nervousness and tremor. Ocular; wide, staring gaze, lid lag
7.
Select the true statements;
A. Primary Hypothyroidism is due to Hypothalamic/pituitary disease
B. Cretinism is typically found in adults
C. Goiter is an enlargement of the thyroid gland due to an improper production of thyroxine.
D. Screening for TSH is the most effective way to test for hypothyroidism and hyperthyroidism.
Correct Answer
F. C and D
Explanation
Option A - Primary - problem with the THYROID
Option B - Cretinism is found in children which results in mental retardation & coarse facial features, due to a dietary iodine deficiency
8.
All of the following are clinical manifestations of myxedema EXCEPT:
A. Heat intolerance
B. Obesity
C. Enlarged tongue
D. Constipation
E. Hair loss on eyebrows
Correct Answer
A. A
Explanation
They care typically COLD intolerant, hyperthyroidism leads to HEAT intolerance
9.
Which statement or statements is/are false in regards to Hashimoto thyroiditis
Correct Answer
D. It is characterized by a triad of manifestations: thyrotoxicosis, infiltrative opHthalmopathy, dermopathy
Explanation
Grave's disease is characterized by a triad of manifestations: thyrotoxicosis, infiltrative ophthalmopathy, dermopathy
10.
Select all that apply: Parathyroid hormone...
Correct Answer(s)
A. Is regulated by Calcium
B. Increases kidney reabsorption of calcium
D. Mobilizes Ca from the bone
F. Auguments GI calcium absorption
Explanation
Increases both the conversion of Vit D to active form and urinary phosphate excretion
11.
Clinical Manifestations of Hypopatathyroidism include:
Correct Answer(s)
B. Facial grimacing
C. Cardiac arrhythmias
F. Hypocalcemia
Explanation
Primary HYPERparathyroidism - causes painful bones and renal stones
SECONDARY HYPERparathyroidism - is related to chronic renal failure
The clinical manifestations of HYPOparathyroidism are due to hypocalcemia
12.
Causes of PRIMARY hyperparathyroidism include
A. Chronic depression of serum calcium levels
B. Adenoma
C. Primary hyperplasia
D. Increased levels of PTH and Ca
E. Hypocalcemia
Correct Answer
F. B, C, D only
Explanation
Option A - causes SECONDARY
PRIMARY Hyperparathyroidism causes HYPERcalcemia
13.
Decreased phosphate excretion leads to depressed Ca levels which will elevate PTH levels
Correct Answer
A. True
Explanation
When phosphate excretion decreases, it causes a decrease in calcium levels. This decrease in calcium triggers the release of parathyroid hormone (PTH) from the parathyroid glands. PTH then acts on the bones, kidneys, and intestines to increase calcium levels. Therefore, decreased phosphate excretion leads to elevated PTH levels.
14.
Select the FALSE statements
Correct Answer(s)
C. The most common cause of Acute pancreatitis is alcohol abuse
D. Clinical manifestations of Acute pancreatitis include jaundice and vague indigestion
Explanation
CHRONIC Pancreatitis = cause most common = alcohol abuse
Causes of Acute = metabolic, mechanical, vascular, infectious
CHRONIC clinical manifestation: jaundice, vague indigestion, abdominal/back pain and weight loss
15.
Which of the following is a complication of Diabetes Mellitus?
A. End-stage renal disease
B. Increased risk of coronary artery disease and cerebrovascular disease
C. Non-traumatic lower extremity amputation
Correct Answer
E. All of the above
Explanation
Dr. May also listed Adult onset blindness as a complication
16.
The desired blood glucose level is ___ to ___
Correct Answer
65,99
Explanation
The desired blood glucose level is between 65 and 99. This range is considered normal and healthy for individuals without diabetes. Blood glucose levels below 65 can indicate hypoglycemia, while levels above 99 may suggest hyperglycemia. Maintaining blood glucose within this range helps ensure proper functioning of the body's cells and organs, and reduces the risk of complications associated with high or low blood sugar levels.
17.
Select the FALSE Statement
Correct Answer
B. Fructosamine (GSP) measures average blood glucose for the past 3 months
Explanation
GSP measures blood glucose for past 2-3 weeks
18.
Complete the statement: Insulin...
Correct Answer(s)
A. Reduces production of glucose from the liver
B. Affects striated and cardiac muscle cells and adipocytes
C. Is NOT required by some tissues including: nerves, kidneys, lens, kidneys and blood vessels
Explanation
Insulin is a hormone that plays a crucial role in regulating blood sugar levels. It reduces the production of glucose from the liver, which helps to maintain stable blood sugar levels. Insulin also affects striated and cardiac muscle cells and adipocytes, promoting glucose uptake and storage in these tissues. However, it is not required by some tissues including nerves, kidneys, lens, and blood vessels. Additionally, insulin decreases glucose uptake and lipogenesis in adipose tissue and decreases both glycogen synthesis and lipogenesis in the liver. It does not decrease protein synthesis in striated muscle.
19.
Which of the statements is false with regards to Diabetes Mellitus TYPE I?
A. It is considered an autoimmune disease
B. Onset is abrupt though chronic attack on beta cells occurs for years before symptoms
C. May result in ketoacidosis
D.Symptoms include Obesity and hyperosmolar nonketotic coma
Correct Answer
D. D
Explanation
The statement "Symptoms include Obesity and hyperosmolar nonketotic coma" is false with regards to Diabetes Mellitus TYPE I. Obesity is not a symptom of Type I diabetes, and hyperosmolar nonketotic coma is more commonly associated with Type II diabetes.
20.
Medications for treatment of DM Type II will stimulate insulin release and affect insulin receptors
Correct Answer
A. True
Explanation
The statement is true because medications used to treat Type II diabetes mellitus (DM) are designed to stimulate insulin release and affect insulin receptors. Insulin is a hormone that helps regulate blood sugar levels, and in Type II DM, the body either doesn't produce enough insulin or doesn't use it effectively. Medications like sulfonylureas and meglitinides stimulate the pancreas to release more insulin, while others like thiazolidinediones and metformin help improve insulin sensitivity at the receptor level. By stimulating insulin release and affecting insulin receptors, these medications help lower blood sugar levels and manage Type II DM.
21.
Which statements are FALSE regarding the adrenal gland?
Correct Answer(s)
B. The cortex synthesizes ONLY catecholamines such as epinepHrine
D. Hypercortisolism will result in Addison's disease
Explanation
CORTEX: Glucocorticoids, mineralcoricoids (aldosterone), sex steroids
Hypercortisolism Results in Cushing's
22.
Which of the following is NOT a clinical feature of Cushing's syndrome
A. Moon faces and Buffalo humps
B. Masculinization in females and precocious puberty in males
C. Easy bruising and striae
D. Can mimic DM
Correct Answer
B. B
Explanation
Option B is due to Adrenogential syndrome BUT like hypercorticolism falls under the umbrella term ADRENOCORTICAL HYPERFUNCTION ( there are three in the family, hyperaldosteronism is the other)
23.
Hyperaldosteronism...
Correct Answer(s)
A. Causes Na retention and K excretion
B. Leads to hypertension
Explanation
The secondary and primary definitions are flipped in this question and therefore wrong.
Remember: Primary is glandular problem and secondary is a response from elsewhere
24.
Addison's disease:
A. is a form of adrenocortical insufficiency - particularly the primary chronic
B. Will become evident once 10% of the adrenal cortex is destroyed
C. Displays GI symptoms of anorexia, nausea, diarrheaalong with weakness and fatigue
D. Maybe due to a rapid withdrawal of steroids or adrenal hemorrhage
Correct Answer
B. A and C
Explanation
Option B_ 90% destruction for symptoms to appear
Option D - refers to primary acute adrenocortical insufficiency like an adrenal crisis
25.
Clinical features of Pheochromocytoma include:
Correct Answer(s)
A. Hypertension
B. Tachycardia
C. Palpitations and tremors
Explanation
Last two options happen to females in adrenogenital syndrome