Endocrinology Flashcards
/What 2 hormones are secreted by the posterior pituitary
Oxytocin and antidiuretic hormone (ADH and vasopressin)
What is Sheehan’s syndrome?
Ischemia of the pituitary due to volume depletion after or during childbirth
How do glitizones work?
the improve insulin sensitivity
What it the Most common pituitary adenoma
Prolactinoma
Large doughy hands should make you think of what diagnosis?
Gigantism
Diabetes insipidius is caused by a deficiency of which hormone?
Vasopressin
How much more potent is T3 compared to T4
3-4x
What is the first line medical treatment of a pheochromocytoma?
Alpha blocker. You should never use a pure beta blocker
What is the best imaging for a thyroid nodule?
Ultrasound
A patient presents with erectile dysfunction and complains of some numbness in his feet. On a second thought he has noticed significant polyuria and polydipsia. What diagnosis should you be thinking of>
Diabetes neuorpathy
Pretibial myxedema should make you think of what diagnosis>
Graves’s disease
a 35 yo female present with heat intolerance, weight loss and palpitations. What is the most likely diagnosis>
Hyperthyroidism
What is the first line medical treatment for a patient who presents with palpitations and nervousness secondary to hyperthyroidism?
beta blockers
What is Hashimotos’ disease?
An autoimmune cause of hypothryoid
How does Levothyroxine work?
It is synthetic T4
What is the Most common thyroid cancer?
Papillary - make up about 80% of all thyroid cancers
In a patient with hyperthyroidism will TSH most likely be elevated or decreased?
decreased.
How do vibrates work to affect the lipid profile?
they inhibit synthesis of VLDL and elevate lipoprotein lipase
What medication might you used prior to thyroidectomy in a patient with hyperthyroidism?
Methimazole or Propylthiouracil (PTU)
What is included in Whipple’s triad of hypoglycemia?
History of previous hypogylcemia, serum glucose of <40, immediate recovery upon administration of glucose
Positive antithyroid peroxidase and antithyroglobulin antibodies should make you think of what diagnosis?
Hashimoto’s
What is the treatment for tibial myxedema?
Levothyroxine and slow warming
What is the most common cause of hypoparathyroid ?
Post thyroidectomy with the complication of parathyroidectomy
What is Chvostek’s sign?
tap on the facial nerve and get a twitch with low calcium
Cortical adrenal insufficiency is also know as what disease?
Addison’s disease
What is Trousseau’s sign?
Inflate a BP cuff and hold for 3 minutes. Patients with hypocalcemia will get carpal tunnel symptoms
What is the most common cause of hyperparathyroidism?
Single parathyroid adenoma in 80% of cases
On Cushing’s disease is ACTH elevated of decreased?
Elevated