Endocrine Flashcards
What is the most common disease of hypothyroidism?
Hashimoto’s thyroiditis
What are distinguishing features of type 2 diabetes?
A canthosis Niagara cans, recurrent vaginitis and women, more insidious onset
How is congenital hypothyroidism typically detected?
On a newborn screen or through symptoms such as lethargy, poor feeding, large fontanelle, and hypotonia
What is the most common disease of hyperthyroidism?
Graves’ disease
What are some risk factors for diabetes 2 that could call for screening?
Family history, race or ethnicity; signs of insulin resistance such as a cancosis nigricans, hypertension, disobedime, PCOS;
What are two normal variants causing short stature?
Familial genetic variant and constitutional delay or bone age is consistent with height age
What type of diabetes mellitus produces ketosis in the untreated state?
Type 1
What are some good lab or diagnostic studies to complete when evaluating short stature?
Bone age, thyroid function test, growth hormone, sweat test
What is the pathophysiology of hypothyroidism?
The thyroid is unable to release t3 and t4 so the negative feedback loop causes the anterior pituitary to release more TSH in a failed attempt to cause the thyroid to release more t3 and t4
What are two disorders that cause disproportionate stature?
Dwarfism and rickets
What are physical findings related to hyperthyroidism? Three things
Thyroid goiter, Graves opthalmopathy, hyperactive deep tendon reflexes
What is the path of physiology of hyperthyroidism?
Thyroid increases the amount of free circulating t3 and t4 stimulating an overall decrease in TSH but due to a failure in the negative feedback loop the thyroid gland continues to produce T3T4
what condition results when nocturnal hypoglycemia stimulates a surge of counter-regulatory hormone hormones that raise blood sugar. The patient is hypoglycemic at 3:00 a.m. and rebounds with an elevated blood sugar at 7:00 a.m.?
Somogyi effecr
What is most often the cause of hypothyroidism?
Autoimmune thyroiditis
Describe the feedback loop of the thyroid
Decrease in t3 or t4 stimulates the anterior pituitary to create more thyroid stimulating hormone which stimulates the thyroid gland to release more t3 t4