DM & Endocrine Flashcards
Goal HbA1C and BP for DM pts
< 7% ; <140/90(also BP goal for CKD pts)
When is Metformin contraindicated?
Creatinine > 1.5
Microalbuminuria is an indicator of (⬜3)
________________
What lab value is used to detect Microalbuminemia?
________________
what are the values for normal, micro and macro?
- DM
- HTN
- PSGN
Urine [Albumin Creatinine Ratio];
_________________
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?
What things cause HYPERKalemia? -6
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 4 symptoms specific to only hypOthyroidism?
Mosty opposite of TT Feels ARCHED but may also have…
- Diastolic HF
- Depression
- Menorrhagia
- Pedal Edema
BOTH HAVE FATIGUE AND HTN
What type of radioiodine uptake do you see in [Silent Painless thyroiditis]?
this is a variant of Hashimoto chronic lymphocytic thyroiditis
low radioiodine uptake
What happens to [total thyroid hormone] serum level when drugs displace thyroid hormone?
________________
Which drugs do this?-3
[free hormone displacement] ➜ [Thyroid production ⬇︎] –> ⬇︎TOTAL thyroid levels but normal free hormone levels
- ASA
- Furosemide
- Heparin
Precocious puberty occurs in [girls less than ⬜ years old] and [boys less than ⬜ years old]
________________
How do you work this up?
Precocious puberty occurs in [girls
________________
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
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 Groans (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 - 13
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 [Glucocorticoid 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 from damaged muscles –> CaPhosphate precipitation –> drops free serum Ca+
________________
HYPERcalcemia and HYPERphosphatemia can occur later 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 ➜ SOCK
Tx for PCOS - 5
[Wt loss–> SOCK]
SOCK:Spironolactone,OCP (1st line after wt loss),Clomiphene for infertility,Ketoconazole
________________
etx: DM/Obesity–>Hyperinsulinemia which –> ⬆︎⬆︎⬆︎LH secretion –> ⬆︎ovarian theca Androgen secretion –> Sx
What level of prolactin indicates a Prolactinoma
>200
Prolactin inhibits LH release
Which CA is known for producing calcitonin?
Medullary Thyroid Carcinoma
also produces ACTH and VIP
associated with MEN2A and 2B
Why should pts with [Medullary Thyroid Carcinoma] 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)
When is a thyroid Fine needle aspirations indicated? - 3
pts with HIGH TSH who have:
- cold nodules
- thyroid CA fam hx
- suspicious thyroid US findings
How is Mg associated with Ca+ levels
low Mg+ (especially in alcoholics) –> ⬇︎PTH hormone release and PTH resistance —> ⬇︎serum Ca+ AND low serum K+
serum Phosphorous levels are NOT affected by this phenomena!