Exam 2 Kidneys, Diuretics, CKD, Dialysis, and AKI Flashcards
What cells in the glomerulus aid in filtration?
The podocytes
What cells in the glomerulus produce growth factors, matrix proteins, and contract?
Mesangial cells
What is azotemia?
Condition characterized by elevated BUN and SCr, due to decreased GFR
What is uremia?
Excess of urea and other nitrogenous waste in the blood – toxic! Many other metabolic/GI/CV/etc alterations involved in addition to renal of excretory function
What is proteinuria?
The presence of protein (albumin) in urine
What is hematuria?
The presence of blood in urine. If visible to naked eye, called gross hematuria.
What does edema lead to?
Circulatory congestion
True or false: CKD is classified with the RIFLE system which is based on the anatomical area of injury (prerenal/intrinsic/postrenal)
False – this system is used to classify acute kidney injury
What disease is characterized by progressive loss of kidney function due to parenchymal fibrosis (change of structure with increased fibroblasts)?
Chronic kidney disease
What three chronic conditions can be especially bad for the kidneys?
HTN, DM, and HLD
What two options do patients with ESRD have?
Hemodialysis or transplant
What must be present for dialysis to work?
A semipermeable membrane separating the blood and dialysate.
What is the semipermeable membrane in peritoneal dialysis?
The peritoneal membrane (peritoneum) that lines the abdominal viscera.
The stomach, liver, and kidneys can all be adversely affected by what class of drugs?
Analgesics and NSAIDS
What is the general term for kidney inflammation?
Nephritis
What body system has the greatest potential to harm the kidneys?
The immune system – immune pathogenesis, either antibody or cell mediated injury
In what three ways can antibodies harm the kidneys?
- Immune complex deposition as antibodies stuck in filtration membrane
- Anti-glomerular basement membrane (GBM) antibodies
- Antibody against another part of the glomerulus
Antibody and cell-mediated injury both lead to what end consequence?
Damage causes injury and detachment of epithelial cells in glomerulus, allowing protein leakage through GBM and filtration slits
What is the difference between NephrOTIC syndrome and NephRITIC syndrome?
Both lead to protein leakage, but only nephritic syndrome has RBC leakage too. Therefore, nephritic syndrome is more serious.
What is the general cause of primary glomerulonephritis?
Problems originating within the glomerulus.
Nephrosis is…
any disease of the kidney leading to degeneration of renal tubular epithelium
Nephritis is…
inflammation of the kidney.
Is azotemia associated with nephrotic syndrome or nephritic syndrome?
Nephritic syndrome
What is oliguria?
Low urine output