Other Clin Med_hematuria, nephrotic syndrome, etc Flashcards
for hematuria - when do we refer to UROLOGY?
kidney stones, mass cysts
for hematuria - when do we refer to NEPHROLOGY?
glomerular bleeding
elevated Creatinine
new or worsening HTN or edema
CASTS
muddy brown casts
acute tubular necrosis
(PPP)
CASTS
white blood cell casts
pyelonephritis
acute interstitial nephritis
PPP
CASTS
red blood cell casts
acute glomerulonephritis
vasculitis
PPP
four disorders classified as Critical Intrinsic Renal Disorders
vascular disorders
glomerular disorders
tubular disease
interstitial disorders
name one Intrinsic Renal Disorder / Vascular Disorder
renal atheroembolism
name two Intrinsic Renal Disorder / Glomerular Disorders
RPGN = Rapidly Progressive Glomerulonephritis
Thrombotic Microangiopathy
name two Intrinsic Renal Disorder / Tubular Diseases
ATN = Acute Tubular Necrosis
Pigment Nephropathy/Rhabdomyolysis
name one Intrinsic Renal Disorder / Interstitial Disorders
acute allergic interstitial nephritis
iatrogenic damage from catheterization - usually free plaque/cholesterol crystals
renal atheroembolism
blue toes
renal atheroembolism
loss of 50% of GFR w/in 3 months
Rapidly Progressive Glomerulonephritis (RPGN)
“crescent formation” in glomeruli
Rapidly Progressive Glomerulonephritis (RPGN)
diagnosis of Rapidly Progressive Glomerulonephritis (RPGN)
biopsy
serological workup
associated with Rapidly Progressive Glomerulonephritis (RPGN)
lupus (SLE)
Goodpasture syndrome
treatment of Rapidly Progressive Glomerulonephritis (RPGN)
immunosuppressants, corticosteroids
schistocytes
Thrombotic Microangiopathy
inner surface of endothelial cells injured
or
prothrombotic agents disrupt smooth inner layer
Thrombotic Microangiopathy
name six common causes for Acute Tubular Necrosis
aminoglycosides vancomycin acyclovir HIV drugs iodine contrast rhabdo
muddy brown casts
Acute Tubular Necrosis
two main causes of Acute Tubular Necrosis
50% - ischemic
50% = toxic
treatment of Pigment Nephropathy/Rhabdo
very aggressive ISOTONIC fluid for forced diuresis
leukocyturia
Acute Allergic Interstitial Nephritis
WBC casts in urine
Acute Allergic Interstitial Nephritis
definitive imaging for post-renal acute kidney injury
bladder u/s
two distinct findings for diagnosis of pre-renal acute kidney injury
BUN/Cr ratio >20/1 (nml ~15/1)
FENa (Fractional Excretion of Na) <1%
edema/hypoalbuminemia
hyperlipidemia
proteinuria
Nephrotic Syndrome
three main findings/presentations for nephrotic syndrome
edema/hypoalbuminemia
hyperlipidemia
proteinuria
blood clots in urine/easy bruising
nephrotic syndrome
three main etiologies for nephrotic syndrome
minimal change disease
focal segmental glomerular sclerosis
membranous nephropathy
three important indicators of kidney disease that should not be overlooked
hematuria
proteinuria
Cr
Can renal tubules heal?
Can nephrons regenerate?
Renal tubules can heal but NEPHRONS DO NOT REGENERATE.
what is most common cause of CKD?
second most common cause?
DM
2nd - HTN
S/S of CKD (four)
proteinuria (best predictor of disease progression)
urine: albumin/Cr ratio or protein/Cr ratio
U/A: metabolic acidosis
renal US: get one early to establish baseline
(have at least one US)
Trtmt of CKD
lifestyle: reduce salt, eat nml amts of protein
get bp <140/90, ACE-Is or ARBs (renal protective) for the HTN/Proteinuria
A1C < 7.0% for the DM
met acidosis - fix it w/ diet
stages of CKD
Stage 1 - nml GFR (120-130) but other signs are present)
Stage 2 - GFR 60-90
Stage 3 - GFR 30-60
Stage 4 - GFR 15-30
Stage 5 GFR <15
when is dialysis considered for CKD?
hyperkalemia
fluid overload
uremia (Cr/urea in blood)
PKD presentation
dilute urine/nocturnal/polyipsia (100%)
hematuria
proteinuria (mild, might have frothy urine)
nephrolithiasis/UTIs
HTN
large palpable kidney
two types of PKD
type 1 -
- most common (75%)
- younger/earlier onset
- more severe
- larger cysts
- more severe
type 2 -
- less common - older onset - less severe
life-threatening concerns for PKD pts
aneurysms
subarachnoid hemorrhages
mitral valve prolapses
common comorbidities for PKD
hepatic cysts
colonic diverticula
PKD U/A presentation
hematuria
proteinuria
low osmolarity
low specific gravity
PKD management (6 things)
U/S: get at least one renal US
suppress ADH with high fluid consumption (ADH drives cyst growth)
Tolvaptan (ADH V2 receptor antagonist)
HTN management (target bp is lower than usual) - maybe add ACE-I or ARBs
manage pain
watch for aneurysms