T3 - DM/Thyroid - Endocrine/GI Flashcards
MODY and LADA
Mature Onset Diabetes of the Young
Late Autoimmune DM in Adults
AGBI
Alpha cells - glucose
Beta cells - insulin
In DM2, initially there is _______ levels of insulin, and then as the cells tire out, insulin levels _______
High
Drop
What is c-peptide? Are levels high or low in T1DM? T2DM?
The part that gets cleaved during enzymatic activation of insulin. If 0 insulin is produced (T1DM), then it makes sense that c-peptide levels would be LOW.
T2DM would be. Hight.
Ominous Octet of DM
Impaired insulin secretion from Beta cells
Increased glucagon secretion from alpha cells
NT dysfunction (satiety)
Decreased glucose uptake in muscles
Increased glucose reabsorption by kidneys
Increased lypolysis
Decreased incretin effects
Increased hepatic glucose production
According to ADA, who should get screened for DM?
Adults over 35 who have a BMI >25 and at least 1 risk (risks = 1st deg relative with DM, high risk race, Hx CVD, HTN, HDL <35 or TG >250, Hx PCOS, physical inactivity, preDM A1c >5.6)
Test q3 years or yearly
How often should pre-diabetics get checked for DM?
Yearly screening
A1C for pre-diabetes and diabetes
Pre = 5.7-6.4
DM= >=6.5
When should kids get screened for DM?
Kids 10yo or at the onset of puberty who are overweight/obese (85% or more) with 1 or more RF.
Fasting plasma glucose is ____ in pre-dm and _____ in DM. Goal for diabetics is ______
Goal A1c for diabetics is _______
OGTT after 2 hours of 75G glucose load for pre-DM is _______ and DM is _______.
Goal post prandial BG for diabetics is ______
100-125, >=126, 80-130
<7%
140-199, >=200
<180
When should pregnant patients get their OGTT?
24-28wks
PP women who had GDM should have an OGTT at ______
4-12 wks PP
Women who had GDM should be screened ______
For DM every 3 years for life.
Hemaglobinopathies and anemias - why do these matter in DM?
They can cause a falsely low A1C since the RBCs turn over more rapidly than every 3 months.
Insulin is initiated at _______ u/kg/day and titration. Most are at around _________ u/kg/day
0.2-0.6
0.4-1.0
“-tides” are ________ and “-flozin” are _______
GLP1
SGLT-2
An expected _____ bump in creatinine happens with the initiation of ACEi/ARB therapy. Anything more than this should be investigated.
10%
If the patient has proteinuria, what Rx should be considered?
Control glucose (<7%)
Control BP (<140/90)
ACEi/ARB
SGLT2
Diabetic neuropathy can “goof up” proprioception which can lead to more ______
Falls
NAFLD + NASH can lead to
Cirrhosis, hepatic ca, portal HTN, liver failure.
Level 1, 2 and 3 hyPOglycemia.
1 = 54-70
2 <54
3 severe event requiring treatment
If you’re a diabetic, you should expect to burn between ______ CHO per 30min of moderate exercise
1-20.
More episodes of hypoglycemia you have, the less your brain recognizes hypoglycemia.
Acidosis in diabetics -
RR?
Na?
K?
Increased
Falsely decreased
Falsely high
How do you calculate the anion gap? What is normal?
Take the number of cations (+Na) minus the sum of the number of anions (- CL and HCO3)
Normal is 8-12
Urine dipstick doesn’t read the MAIN ketone in DKA, only the other 2, so if ketones are low, or neg, it could still have ketones.
What is the SICK acronym for DM?
On sick days:
Sugar: Check your Sugar every 2-3 hours or as necessary
Insulin: Always take your Insulin
Carbs: Drink lots of fluids. If sugars are high drink sugar free beverages. If sugars are low, drink Carb containing beverages.
Ketones: check your urine ketones every 4 hours. Take rapid acting insulin if ketones are present.
For DM, the PCV pneumococcal vaccine is recommended for 19-65yo.
Too much thyroid hormone during development = _________ stature. Why?
Short. Because the bones mature and ossify sooner than normal.
What will you see in TSH and T4 in Hashimoto’s?
Increase TSH and decrease T4
If TSH is high and T3/T4 are normal/low, then what is the condition?
Hypothyroidism or sub clinical hypothyroidism.
If TSH is low and T3/T4 are normal/high, what is the conditions?
Hyperthyroidism or sub clinical hyperthyroid.
In Central hypopthyroidism, what differs from primary hypothyroidism?
Central = normal/low or slightly high TSH with low or low-normal t3/T4.
Single best test of thyroid function?
TSH
Titration TSH at a 6-8wk follow up.
Young adults will start at _______% predicted dose calculated by ______
Middle age start at ______ % predicted dose _______
Elderly or Cardiopulmonary disease start at _________
79-90% (1.5-2.2mcg/kg ideal body weight)
65-75% (1.5-2.0mcg/kg ideal body weight)
12.5-25mcg/d and add 25mcg every 6 weeks.
Restoring a euthyroid state in some one with hypothyroidism especially elderly and those with cardiopulmonary disease can cause ________
Tachycardia
Increased O2 consumption/demand
Exacerbation of underlying cause
What should we consider in every patient newly diagnosed with hypothyroidism?
Adrenal insufficiency
How should you take synthroid?
On an empty stomach first thing in the morning (only water- no food OR COFFEE!) and wait at least 30 minutes prior to any food or other medications.
Your patient has been put on the starting dose of synthroid for hypothyroidism. They are back for their 6 week follow up and their TSH level is <0.5. What should you do?
What if their level was >4?
<0.5, then decrease dose by 12.5-25mcg
If > 4, then increase dose by 12.5-25mcg.
What is the therapeutic TSH range while on medication?
0.5-2
TSH will be >___ but < ____ in subclinical hypothyroidism. Should you treat?
5 less than 10
Treat if symptomatic. Monitor for worsening.