Renal Syndromes Wall 4/24 HIGH YIELD Flashcards
Diagnosis of kidney disease is best accomplished by looking at what four pieces of information?
1) changes in serum creatinine
2) Abnormalities in urinalysis
3) Altered Renal Homeostasis
4) Abnormal kidney imaging studies
More specific diagnoisis is started by asking what 4 questions?
1) acute or chronic
2) pre, intrinsic, or post renal
3) Glomerular, tubular, vascular
4) Inflmammatory, non-inflammatory
5) Assoc w/underlying systemic disease
Three categories of intrinsic disease?
Glomerular, tubular, vascular
5 categories of glomerular disease?
Nephrotic, Nephritic, Mixed, Mesangial Nephritic,Chronic glomerular
What are the features of Nephrotic syndrome according to Nichols?
Edema, selective heavy proteinuria, hypoalbuminemia, hyperlipidemia
What will GFR look like in Nephrotic?
Probably normal
BP in nephrotic?
Normal
What is the typical level of proteinuria in nephrotic syndrome?
3g/day
Is the urinary sediment in Nephrotic active or inactive and what does this mean?
Urinary sediment is inactive (no red cells or red cell casts)
Name the nephrotic syndromes we covered
FSGS, Minimal Change, Membranous nephropathy, post-infectious glomerulonephritis
Common symptoms of Nephritic syndrome?
hematuria, renal insufficiency, hypertension
Name the nephritic syndromes we covered?
MPGN, Dense Deposit Disease, IgA nephropathy, Anti-GBM, Rapidly progressing GN, Alport Syndrome
Signs of mixed glomerular disease?
heavy proteinuria, low albumin and edema, inflammation, hematuria (all of these can be presesnt but dont have to be)
Ex: Lupus Nephritis stage 4 diffuse proliferative type
What are the signs of Mesangial Nephritic Syndrome
capillary are fine so you should have steady GFR, steady BP, can have Hematuria because it is inflammatory
3 types of Tubular syndromes?
Inflammatory interstitial (infectious and non-infectious, Non-inflammatory interstitial, chronic interstitial
Vascular syndromes?
Prerenal azotemic, renal artery stenosis, hypertensive nephrosclerosis, vasculitis
Renal artery stenosis related to what>
hypertension
What is pre-renal azotemia?
Nothing wrong with the Kidney, just not enough flow or pressure due to another problem
What is a typical dipstick analysis reading in nephrotic syndrome?
3+ or 4+
What is the most common type of nephrotic syndrome in children?
Minimal Change Disease
What is the most common glomerulopathy in caucasians?
Membranous Glomerulopathy
What is the most common nephrotic syndrome in African Americans
Focal Segmental Sclerosis
What is the most common form of nephrotic disease overall?
Diabetic Nephropathy
Nephritic syndrome is most characterized by what?
Inflammation in the glomerulus. Can be driven by immune complex, anti-GBM antibodies, ANCA. etc…
Inflammation in the glomerulus causes what in the urine?
Blood (microscopic or gross) or red cell casts
A red cell cast is made by a red cell trapped in what protein?
Tamm-Horsfall
Why are you more likely to see declining GFR with nephritic syndrome than with Nephrotic?
Endothelial cells are swollen shut so you lose surface area for filtration.
Why do you have hypertension in Nephritic syndrome
Low GFR so you are retaining salt and water to keep fluid volume.
Why does the retention of salt and water in Nephritic syndrome lead to HTN whereas salt and water retention in Nephrotic syndrome leads to edema?
In nephritic syndrome, the plasma oncotic pressure is fairly stable because you’re not losing albumin and other proteins so the salt and water retention distributes evenly to the extracellular space and you get plasma volume expansion as well as some ISF volume expansion