E2 Flashcards
(107 cards)
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