Med-DM/Endocrine Flashcards
What are the 4 ways to Diagnose DM
Goal HbA1C and BP for DM pts
< 7% ; <140/90(also BP goal for CKD pts)
When is Metformin contraindicated?
Creatinine > 1.5
Sulfonylurea MOD ; List examples-3
Stimulates pancreas to release endogenous insulin
- Glimepiride
- Glyburide
- Glipizide
Meglitinide MOD ; List examples-2
Stimulates pancreas to release endogenous insulin
- Nateglinide
- Repaglinide
[Alpha glucosidase inhibitor] MOD ; List examples-2
inhibits a-glucosidease –> inhibits carb digestion;
- Acarbose
- Miglitol
[DPP-4 inhibitors] MOD ; List examples-2
Inactivates [DPP-4 GLP1 peptidase] –> ⬆︎GLP1–> ⬆︎Glucose-induced insulin release
- SitaGliptin
- SaxaGliptin
What are the GLP1 homologs?-2 ; What do they do?
⬆︎Glucose-induced insulin release
- ExenaTIDE
- LiragluTIDE
These require Injections
Microalbuminuria is an indicator of __(3)___.
What lab value is used and what are the values for normal, micro and macro?
- DM
- HTN
- PSGN
Urine [Albumin Creatinine Ratio];
30-300
normal = < 30
micro = 30-300
MACRO = 300+
How often should eye exams be done for DM pts
yearly
for IDDM, how much daily insulin should be prescribed?
[Nonketotic Hyperosmolar Coma] is a complication of DM
What Blood Glucose precipitates this?
Blood Glucose > 600
What things cause HYPERKalemia? -6
Classic Presentation for DM -4
What are the opthalmological complications of DM-3; what causes them?
- Retinopathy (from ⬆︎VEGF –> abnormal angiogenesis)
- Glaucoma (⬆︎ Sorbitol eye pressure)
- Cataracts (Glycation of Ocular lens
A: Clinical Manifestations of DiGeorge Syndrome (5)
B: Genetic Cause
C: Embryologic cause
“CATCh 22 & Pa3”
Cardiac (Tetralogy of Fallot + Aortic Arch abnormalitites)
Abnormal face (Bifid Uvula/low set ears)
Thymus Aplasia (Thymic shadow in image) –> Virus/Fungal infection
Cleft Palate
[hypOcalcemia from PTH deficiency] may–> Carpopedal Spasms
22q.11.2 deletion
Pharyngeal arch - 3rd/4th both fail to develop
How does hypOthyroidism affect Neuro system - 4
- it causes ⬇︎ in DTR
- ⬇︎ motor relaxation phase
- Mood ∆
- Dementia
Obesity w/Hyperphagia + Retardation should raise suspicions for what disorder?
Prader Willi Syndrome
Common s/s of HYPERthyroidism -9
TT Feels ARCHED
- [Tremor & Tachycardia]
- Fatigue
- Appetite ⬆︎ but Wt ⬇︎
- Reflexes ⬆︎
- Cardio (Tachycardia, Palpitations,Exertional SOB)
- Heat intolerance –> SWEATING
- Exopthalmous with lid lag
- Diarrhea w/ possible dyspepsia
Older pts may only have Fatigue and Cardio sx!
S/S of hypothyroidism is mostly opposite of Hyperthyroidism
What are 6 distincitve s/s of hypothyroidism?
Mosty opposite of TT Feels ARCHED but may also have…
- Cardio: Diastolic HF
- Depression
- Menorrhagia
- Pedal Edema
- HTN
- BOTH HAVE FATIGUE
What type of radioiodine uptake do you see in Silent Painless thyroiditis?
this is a variant of Hashimoto chronic lymphocytic thyroiditis
What happens to thyroid hormone serum level when drugs displace thyroid hormone? ; Which drugs do this?-3
Thyroid production will ⬇︎ –> ⬇︎TOTAL thyroid levels with normal free hormone levels ;
- ASA
- Furosemide
- Heparin
Precocious puberty occurs in girls < __ years old and boys < ___ years old
How do you work this up?
Precocious puberty occurs in girls < __ years old and boys < ___ years old
A pt has just been diagnosed with Gonadotropin Dependent Central Precocious Puberty
What are the major causes of this?-2
IDIOPATHIC > Pituitary tumor
ALL PTS WITH THIS SHOULD UNDERGO CONTRAST BRAIN MRI REGARDLESS OF +/- HA/VISION SX. Precocious Puberty may be the first sign before the tumor
Danazol MOA ; Indication
testosterone derivative with progestin effects ; endometriosis
Teenage boy comes in with gynecomastia
How do you work this up?
YOU DONT! - Pubertal gynecomastia is seen in up to 66% of teenage boys mid-late puberty. It can be uL, BL and/or painful
Tx = self-limited to ≤2 years
How long does it take radioiodine therapy to treat Hyperthyroidism? ; How does radioiodine therapy actually worsen Graves ophthalmopathy?
1-4 mo ; radioiodine eventually –> hypothyroidism –>⬆︎ thyroid stimulating autoantibodies –> orbital tissue expansion from orbital fibroblast stimulation
Tight blood glucose control in DM pts mostly ⬇︎ their risk for what?
microvascular complications (retinopathy, neprhopathy)
we dont know if it has an effect on MACROvascular disease such as MI or stroke
You suspect a pt has Cushing Syndrome
How do you work this up?-2
1st: Determine if pt has ⬆︎Cortisol (Overnight low-dose dexamethasone test, late night salivary cortisol assay, 24 hr urine free cortisol)
2nd: If ⬆︎ Cortisol, determine if its from Cushing or adrenal adenoma (ACTH serum level)
Name the characteristics of Cushing Syndrome - 7
Fat Heavy People May HOG the Cushing
- Fat distribution problems (central obesity, Moon face)
- Hyperpigmentation (from ACTH excess - can occur during excess or insuffiency)
- Purple striae with skin atrophy and bruisability
- Muscle atrophy
- HTN
- Osteoporosis
- Glucose intolerance
Dx = 1st-low dose Dexamethasone suppression test
Cushing SYNDROME is caused by HIGH levels of Cortisol
Riedel thyroiditis MOD
progressive fibrosis of thyroid gland and surrounding tissue (that looks like CA)
cp for HyperParathyroidism - 4
Painful Bones (to include Pseudogout), Renal Stones, Abdominal Moans (includes constipation), Psychic Moans
MEN-Multiple Endocrine Neoplasia 1 cp - 3
MEN-Multiple Endocrine Neoplasia 2A cp - 3
MEN-Multiple Endocrine Neoplasia 2B cp - 4
In Hashimoto chronic lymphocytic Thyroiditis, which antibodies are responsible for the attack on the thyroid gland?
AntiThyroidPerOxidase
AntiTPO is also a/w miscarriage!!
Acromegaly cp - 12
heart = concentric LVH
Acromegaly Dx
GH stimulates IGF1 secretion most of the day –> acromegaly sx
cp of hypopituitarism - 5
FLAT PiG
- FSH/LH ⬇︎ –> Amenorrhea, testicular atrophy
- ACTH ⬇︎ –> ⬇︎Cortisol BUT NOT ALDOSTERONE –> hypotension from ⬇︎arterial resistance
- TSH⬇︎ –> Fatigue/hypOthyroidism
- Prolactin⬇︎ –> LACTATION FAILURE (1ST SIGN OF SHEEHAN!)
- GH⬇︎ –> Anorexia
What are all the functions of Cortisol - 6
BIG FIB
- ⬆︎Blood pressure (⬆︎a1 receptors)
- ⬆︎Insulin resistance –> DM
- ⬆︎Gluconeogenesis
- ⬇︎Fibroblast –> striae
- ⬇︎Immune system (WHITE)
- ⬇︎Bone formation by ⬇︎osteoBlast
How does immobilization affect Ca+ levels
INCREASES
Immobilization –> ⬆︎osteoclast activity –> ⬆︎serum Ca+
Acute Rhabdomyolysis causes Ca+ to ____[increase/decrease] because of what?
DECREASE ; release of Ca+ and Phosphorous in damaged muscles –> CaPhosphate precipitation –> drops free serum Ca+
HYPERcalcemia and HYPERphosphatemia can occur during the remobilization phase during recovery
How does albumin levels affect ionized Ca+ levels?
IT DOESNT! - albumin only affects TOTAL ca+ levels and will NOT cause calcium-related symptoms
etx of PCOS ; What are the primary effects of this etx?-5
DM/Obesity–>Hyperinsulinemia which –> ⬆︎⬆︎⬆︎LH secretion –> ⬆︎ovarian theca Androgen secretion –>
- Androgen characteristics (acne, balding, hirsutism)
- menstrual irregularities from Anovulation
- PCOS on US from Follicular atresia
- Infertility from Anovulation
- ⬆︎Estrogen (from Androgen conversion) –> Endometrial ADC
Tx = Wt loss–> OCP –> [Clomiphene for infertility] and [Combined OCP for irregular menses]
Tx for PCOS - 3
DM/Obesity–>Hyperinsulinemia which –> ⬆︎⬆︎⬆︎LH secretion –> ⬆︎ovarian theca Androgen secretion –>
Tx = Wt loss–> OCP –> Clomiphene for infertility and [Combined OCPs for irregular menses]
SOCK:Spironolactone,OCP (1st line after wt loss),Clomiphene for infertility,Ketoconazole
What level of prolactin indicates a Prolactinoma
>200
Prolactin inhibits LH release
Which CA is known for producing calcitonin?
Medullary Thyroid Cancer
also produces ACTH and VIP
associated with MEN2A and 2B
Why should pts with Medullary Thyroid Cancer have a fractionated metanephrine assay ordered?
Screen them for Pheochromocytoma
MTC and Pheochromocytoma are associated with MEN2A and 2B
How do you treat Papillary Thyroid Carcinoma - 3
Surgical Resection –> +/- radioiodine ablation and suppressive doses of thyroid hormone (in pts with risk of recurrence)
When is a thyroid Radionuclide scan indicated?
pts with low TSH
evaluates for HOT nodules (which are usually benign)