CMS midterm key Flashcards
liver cirrhosis
irreversible, scar tissue replaces liver tissue
NASH is
> 5% hepatic steatosis PLUS hepatocellular injury and inflammation, with or without fibrosis
fat accumulation and ballooning degeneration
causes of NAFLD
obesity
T2D
dyslipidemia/hypertriglyceridemia
findings in liver disease
palpable liver edge, spider angioma, captut medusa, palmar erythema, gynceomastia, ascites, portal hypertesnion
bad AST/ALT ratio
> 1 in advanced fibrosis and cirrhosis
imaging for liver disease
ultrasonogrpahy
NASH can only be diagnosed by
liver biopsy and histology
obesity BMI, WC, Waist to hip
BMI >30
Waist circumference
females >35 inches
males >40 inches
Waist to hip
males >1
females >0.85
gold standard for assessing body fat
dual energy x ray absorptometry DXA
% obesity in north america
30%
primary vs secondary obesity
primary: increase calories and decrease activity [95% of cases]
secondary: genes, medications, medical conditions
gestational diabetes testing ; what and when
2 step oral glucose challenge at 24 weeks
pre eclampsia? at what week in gestation?
hypertension (140/90) and proteinuria and/ or end-organ dysfunction at 20 weeks gestation
(thrombocytopenia, increased ALT and AST, increased creatinine
if there is hypertension before 20 weeks gestation it is not pre eclampsia it is
chronic hypertension
need to be 20 weeks for pre eclampsia and have proteinuria
how much weight to gain in pregnancy if obese BMI >30
5-9kg/11-20lbs which is 0.2kg/0.5lbs per week
and gain in 2nd and 3rd trimester
menopause
non pathologic, estrogen deficient
obstructive sleep apnea and obesity
neck circumference> 40 cm
diagnose with polysomnography
NAFLD in obesity? how much weight loss?
NAFLD is 80-90% of obese adults
3-5% weight loss for steatosis
7-10% weight loss for NASH
lifestyle or meds or surgery for obesity?
BMI >30 or >25 with 2 risk factors= lifestyle modifications
BMI >35 or >27 with 2 risk factors = lifestyle and medications
BMI >40 or >35 with 2 risk factors= weight loss surgery (get lots of markers for vitamins and bones and what not every 6-12 months)
5 As of obesity
ask
assess
advise
agree
assist
idiopathic T1D
no pancreatic beta cell autoimmune… only like 5% of cases
screening for T1D
no
screening for T2D
yes- if asymptomatic with BMI >25 or risk factors (A1C>5.7, impaired fasting glucose, impaired glucose tolerance)
screen for T2d in kids
insufficient evidences; only if overweight and have 2 risk factors
screening in elders
no recommendations for routine screening, doesnt effect life expectancy possibly
pre diabetes is very common
stop screening at age 70 to avoid overdiagnosis
when to test for T2d if overweight or obese but have blood results in normal limits
every 3 years
annual screening if
> 45 years old
<45 with risk factors
normal is every 3 years
T2D: the leading cause of death is
myocardial infarction
inflammation and immune in T2d
adipocytes secrete adipokines and also TNF Alpha and IL-6 all contribute to impaired insulin signaling
gestation diabetes in % of pregnancies
8
when to screen fro gestational diabetes
24-48 weeks
also check after 6-12 weeks postpartum
testing for gestational diabetes
2 step glucose tolerance test
T2D in kids complications
DKA and hyperglycemic hyperosmolar state
mature obset diabetes of the young (MODY) in how many % of cases
5% but often misdiagnosed as T1D OR T2D
what is MODY
non insulin dependent form of diabetes that has ok beta cell function
cause of MODY
genetic; autosomal dominant
weight in MODY
non obese
types of MODY; most common? least dangerous? what is like T1D or T2D symptoms?
most common MODY 3
least dangerous MODY 2
like T1D and T2D is MODY 1 and MODY 3
diagnostic values of
-fasting plasma glucose
-oral glucose tolerance test
-HbA1C
> 126
126 or 200 @ 2 hours
6.5%
what test for DKA
urinalysis
diabetic nephopathy; markers in kidneys; how common is ESRD due to diabetes
1/3 of ESRD due to diabetes
albumin, urea, creatinine
diabetic neuropathy; most common type
distal symmetric polyneuropathy most common
autonomic neuropathies can affect GI, CVD, genitourinary
diabetic retinopathy
catacacts, glaucoma, dry eye syndrome, macular edema
diabetic foot ulcers? severe symptoms?
with osteomylitis (bone inflammation)
if severe infection; increases temperature, pulse, RR, WBC
DKA is primarily from what diabetes type
T1D
causes of DKA
infection, inadequate insulin treatment, CVD, etc
symptoms of DKA
N/V, coffee ground emesis
polyuria, polydipsia, kussmaul breathing, tachycardia, hypertension
cerebral edema (rare)
labs of DKA
high plasma glucose (hyperglycemia), low pH, low bicarbonate (acidosis), ketones in urine
which is life threatening and which is emergent condition; DKA and hyperosmolar hyperglycaemic state (HHS)
DKA- life threatening
HHS- emergent
who Is hyperosmolar hyperglycaemic state (HHS) most often seen in
elders with T2D
causes of hyperosmolar hyperglycaemic state (HHS)
infections, medications, coexisting conditions etc
symptoms in hyperosmolar hyperglycaemic state (HHS)
thirst, hyperglycemia, polyuria, tachycardia, seizures, coma
rare; vascular occlusions, rhabdomyolysis
labs of hyperosmolar hyperglycaemic state (HHS)
increased plasma glucose, increase serum osmolarity, increased pH
difference between HHS and DKA
DKA has low pH and ketones in urine
HHS has high pH and no excessive ketonuria
what hypothryoid is most common
95% of cases are primary hypothyroid (and autoimmune)
central hypothryoid from what most commonly
pituitary adenoma
2 main mechanisms in hypothyroid
- slowed metabolism
- polysaccharides accumulate in interstitial space
goiter
commonly?
endemic?
physiologic?
testing?
usually euthyroid (can be hypo or hyper)
physiologic: pregnancy, adolescence
endemic: iodine deficiency
test: fine needle aspiration biopsy if nodules
what 2 NHPs affect thyroid
biotin and st johns wart
biotin effect on thyroid
falsely decreases TSH and increase T3,T4 making it look like hyperthyroid (or overmedicated hypo)
st johns wart effect on thyroid
transiently elevated TSH
hyperthyroid TSH and T4 values
low TSH, high T4
primary hypothyroid TSH and T4 values
high TSH, low T4
subclinical hypothyroid TSH and T4 values
High TSH, normal T4
central hypothyroid TSH and T4 values
low TSH, low T4
when to treat vs monitor subclinical hypothryoid? TSH values?
monitor if TSH 4-10, treat if TSH >10 or TPO antibodies