Endocrinology Flashcards
Myxedema Coma
Symptoms?
Medications that can cause?
Tx?
- Low body temp, swelling, confusion, difficulty breathing
- Lithium, Amiodarone
- IV T4
Synthroid major side effects? Caution in who?
- Cardiac
- Elderly and those with heart disease (need 12.5 starting dose)
When to recheck thyroid levels with Synthroid?
- Every 4-8 weeks until therapeutic then q6-12 months
Synthroid not well absorbed if taken with what?
LT risks of what?
- Biotin (vitamin B7)
- Osteoporosis
Medication for normal TSH/T4 but a low T3?
- Triostat
Causes of Hyperthyroidism?
- Grave’s, excess iodine, thyroiditis
Treatment of hyperthyroidism? 1st? 2nd? 3rd?
- 1st line: Radioactive iodine
- 2nd: Thyroidectomy
- 3rd: Tapazole or PTU (remissions and relapses)
PTU needs what labs? How often to take? SE? Pregnancy?
- CBC
- TID
- Agranulocytosis -> decreased WBC
- Need to take during first trimester 0-13wk
Subclinical hypothyroidism tx
- Monitor every 6 months
Hyperparathyroid labs vs. Hypoparathyroid
- HyPER: HIGH calcium, LOW phos
- HyPO: LOW calcium, high phosphorus
High calcium concern for what?
- Malignancy
Hypoparathyroidism treatment
- Calcium and vitamin D so the body can absorb the calcium
Somogyi Effect
What is it?
Tx? (3)
- Dip in the middle of the night (3am) with rebound rise
- Tx: Cutting back night time insulin, have night time snack, avoid exercise before bed
Dawn Phenomenon- what is it? Typical cause?
- Glucose steadily increases all night
- Cause: Increased hormones (GH/cortisol/epi)
When to start DM screening in healthy adults? When to Repeat?
How often to check A1C in controlled DM?
- Healthy: Age 45 and repeat every 3 years
- every 6 months
Name the Med endings: SGLT2, Sulfonyurea, TZD, GLP1, DPP4
- SGLT2- Flozin
- Tide- GLP1
- Zone - TZD
- Gliptan – DPP4
- Ide - Sulfonyurea
What meds need stopped if starting insulin d/t risk of hypoglycemia?
- Sulfonylureas and TZD’s
Side Effects Sulfonylureas? Don’t give to who?
- Hypoglycemia and weight gain
- Bad for older adults d/t risk of falls
What DM meds are contraindicated in symptomatic HF d/t fluid retention and edema?
- TZDs
What DM meds are contraindicated in liver failure?
- TZDs
What A1C to start dual therapy and insulin?
- A1C > 9
How does metformin work? (2)
- Decrease glucose production in the liver (hepatic gluconeogenesis)
- Decreases glucose uptake in the intestines
Positive DM screening tests for DM (A1C, FBG, OGTT, RPG)
- A1C>6.5
- Fasting blood glucose > 125
- 2hr OGTT > 200
- RPG>200 with symptoms