E2 Flashcards
when can you conclude that the pt has AKI?
if sx are present for less than 3 months with GFR < 60 ml/min and/or markers of kidney damage present
what are the markers of kidney damage?
protein in urine
- abnormal urinary sediment
- abn kidney biopsy
- abn renal imaging
- electrolyte abn from tubular disorders
- hx of kidney transplantation
what does chronic kidney disease entail?
1) GFR < 60 ml/min
2) markers of kidney damage
whats the prevalence of CKD in US?
around 15% of US adults have CKD (so, 1 in 7)
- thats 37 million adults in US
what are the top CKD risk factors?
- diabetes
- hypertension
- cardiovascular disease
- acute kidney injury
- family hx of kd
what is the major etiology of CKD?
diabetes (38%) or HTN (26%)
t = 64%
what are some clinical presentations of CKD?
- edema
- HTN
- decr urine output
- foamy urine
- hematuria
- uremia (raised nitrogen levels)
- pericardial friction rub
- asterixis (hand thing)
- uremic frost (powder foot)
what are the 3 simple tests to id most CKD pts?
- eGFR (estimated)
- urine albumin-to-creatinine ratio; or urine protein-to-creatinine ratio
- urinalysis
what are the limitations of eGFR>
not reliable in acute kidney injury
in diagnosing CKD, what are the renal ultrasound findings found?
- atrophic kidneys
- cortical thinning
- incr echogenicity
- elevated resistive indices
What happens to GFR with age?
GFR declines by 1 ml/min/year after the age of 30-40
what are the majority of deaths in ESRD patients?
cardiovascular (54%)
what are the indications for dialysis?
A: severe acidosis
E: electrolyte disrubances (usually hyperK)
I: ingestion (ethylene glycols, methanol)
O: volume Overload
U: uremia
define azotemia
elevated BUN without symptoms
define uremia
elevated BUN w sx (N/V, confusion, pruritus, metallic taste in mouth, fatigue, anorexia
what tells you AKI?
KDIGO guidelines of 2012
serum creatine vs urine output
-(which is worse)-
what are the major risk factors for AKI?
old age
- proteinuria
- CKD
- HTN
- DM
- CVD
- exposures to nephrotoxins
- cardiac surgery
- fluid overload
- sepsis
what drugs are associated with AIN?
- antibiotics
- NSAIDs
- proton pump inhibitors
- can be caused by drugs, inf, or autoimm. do’s
- drugs account for >75% of all cases with antibiotics, NSAIDs and PPIs being the main culprits
what are some complications of AKI?
- development of CKD
- Progression of CKD
- ESRD
- CVD
Whwat are some common diagnostic tests
- UA with microscopy
- urine albumin/cr ratio or protein/cr ratio
- renal U/S
what kidney disease does this urinary pattern suggest?
renal rubular epithelial cells, transitional epithelial cells, granular casts, or waxy casts?
ATN
acute tubular necrosis
what kidney disease does this urinary pattern suggest?
WBC, WBC cast, or urine eosinophils?
AIN
acute intersitial nephritis or pyelonephritis
what kidney disease does this urinary pattern suggest?
dysmophic RBCs, RBC casts
vasculitis or glomerulonephritis
what kidney disease does this urinary pattern suggest?
proteinuria (<3.5 g/day), hematuria, dysmorphic RBC and RBC casts
nephritic syndrome
what kidney disease does this urinary pattern suggest?
heavy proteinurea (>3.5g/day), lipiduria, minimal hematuria
nephrotic syndrome
what kidney disease does this urinary pattern suggest?
hyaline cast
non-specific, prenatal azotemia
what kidney disease does this urinary pattern suggest?
WBCs, RBCs, bacteria
urinary tract infection
FeNa or FeUrea is only valid in which type of patients, oliguric or non-oliguric pts?
oliguric pts only (<400-500 ml/day)
what is the purpose of ordering a FeNa or FeUrea?
to differentiate prerenal azometia from intrinsic renal injury (ATN usually)
define anuria, oliguria, polyguria, numerically
a: <50 to 100 ml/day
O: <400-500 ml/day
P: >3K ml/day
what are the dietary sources of Vitamin A?
eggs, dairy products,
meat, oily salt-water fish
- dark green and yellow veggies
- tomatoes
what is the dietary source of vitamin D?
fortified milk, orange juice, cereal;
cod liver oil
swordfish, salmon, herring, trout
egg yolks, muschrooms
what is the dietary source of Vitamin E
wheat germ, sunflower seeds, almonds, peanuts, sunflower oil, avocado,
abalone, atlantic salmon, rainbow trout
sources of vit K?
green leafy vegetables
fruits
dairy products
vegetable oils and cereals
intestinal microflora
what is the source of B1
aka thiamin
- whole and enriched grains, lean pork, legumes
what is the source of vitamin B2?
riboflavin
dairy products,
meat, poultry,
wheat germ,
leafy vegetables
what is the source of B3?
aka niacin
- meats, poultry, fish,
- legumes, wheat
all foods except fat
what is the source of B6?
animal products, veggies, whole grains
what are the sources for B9?
folate
- leafy veggies (destroyed in cooking)
- fruits
- whole grain, wheat germ
- beans and nuts
what is the source for B12?
cobalamin
eggs, dairy products
liver and meats
none In plants; vegans need supplements
what is the source for vitamin C?
fruits and veggies
what are the sources for calcium?
dairy products
dark leafy veggies (collard, kale, spinach, swiss chard, turnip and mustard green)
tofu, broccoli, cauliflower, flax seed, beans and lentils