Endocrinology (3%) Flashcards
What is the development of DM during pregnancy called?
Gestational DM
What are some examples of Alpha Glucosidase Inhibitors?
Acarbose, Miglitol
What will be seen on ECG of a pt with hypercalcemia?
Shortened QT interval, prolonged PR interval, QRS widening
Hyperglycemia is observed in both DKA and HHS with sx such as….
With sx of ______ seen in pts with DKA and ______ in pts with HHS
thirst, polyuria, polydipsia, nocturia, weakness, fatigue, confusion, nausea, vomiting, CP
abd pain: DKA
mental status changes: HHS
What are the tx goals for DKA?
HHS?
Closing of the anion gap in DKA
Normal mental status in HHS
_____ and _____ are results of INSULIN DEFICIENCY and counterregulatory hormonal excess in diabetics as a direct response to stressful triggers (most commonly ______)
DKA and HHS
infection
Lab values that indicate DKA?
HHS?
Describe the HPT (hypothalamus, pituitary, thyroid) axis
What medications can cause hypothyroidism?
Amiodarone (contains iodine)
Lithium
Alpha interferon
What is the dawn phenomenon?
Management?
Normal glucose until rise in serum glucose levels between 2am - 8 am
Results from decreased insulin sensitivity and nightly surge of counter regulatory hormones (during nighttime fasting)
Management: bedtime injxn of NPH, avoiding carb heacy snacks before bed, insulin pump use early in the AM
What is HHS?
How is it different from DKA?
Hyperosmolar hyperglycemic state (HHS) is a complication of DM in which high blood sugar results in high osmolarity w/o significant ketoacidosis
Sx include signs of dehydration, weakness, legs cramps, trouble seeing, and an altered level of consciousness
Differences: see picture
What are some examples of Thiazolidinediones?
Pioglitazone, Rosiglitazone
What are some examples of SGLT-2 Inhibitors?
Canagliflozin, Dapagliflozin
What is Cretinism?
What would a pt with this condition present with?
How to tx?
Congenital hypothyroidism due to maternal hypothyroidism or infant hypopituitarism
Macroglossia, hoarse cry, coarse facial features, umbilical hernia, weight gain
Mental development abnormalities may all develop if not corrected
Thyroid hormone replacement: Levothyroxine
_______ is the most common cause of end stage renal dz
DM
Tx for mild hypercalcemia?
Tx for severe/sx hypercalcemia?
No tx for mild
Sx: IV saline, Furosemide 1st line, avoid HCTZ (causes increased calcium), Calcitonin, bisphophonates for severe cases, steroids
What are possible causes of hypercalcemia that are not related to the parathyroid gland?
Malignancy (secretes PTH-related protein), decreased amounts of intact PTH
Vit D excess (granulomatous dz, vit intoxication)
Vit A excess, milk alkali syndrome
Thiazides
Lithium
Will Free T3 and Free T4 be elevated or low in hyperthyroidism?
Hypothyroidism?
Elevated in Hyperthyroidism
Low in Hypothyroidism
What are some examples of pre mixed insulins?
Humulin 7/30
Novolin 70/30
Novolog 70/30
Humulin 50/50
<em>administered 2x daily before meals</em>
What are potential risk factors for developing Type II DM?
What does CHAOS stand for?
H/o impaired glucose tolerance, FHx, 1° relative, Hispanic, African American, Pacific Islander, HTN, HLD, delivery of baby >9lbs
Syndrome X/insulin resistance: CHAOS –> Chronic HTN, Atherosclerosis, Obesity (central), Stroke
What is the triad of hyperparathyroidism?
Increased calcium
Increased intact PTH
Decreased phosphate
Why are pts with DM at an increased risk of infections?
D/t vascular insufficiency and immunosuppresion from hyperglycemia