Urological disorders Flashcards
What are the 5 normal functions of kidneys?
FILTRATION-removal of waste substances
CONTROL SALT AND WATER BALANCE
CONTROL ACID AND BASE BALANCE
HORMONE-erythropoeitin production
VITAMIN D- 1-alpha-hydroxylation of vitamin D
What are the 5 consequences of kidney dysfunction?
1) Filtration failure-accumulation of waste, haematuria, proteinuria, low serum protein including albumin in blood
2) Hypertension, water retension(sometimes dehydration because unable to make concentrated urine)
3) Metabolic Acidosis
4) Anaemia-due to not producing erythropoietin
5) Vitamin D defficiency and secondary hyperthyroidism
Where are the possible locations for an infection?
What other factors would make an infection more likely to happen?
Bladder= cystisis
Kidney=pyelonephritisis
Kidney stone-would stop flow of urine into uretor(infection can happen behind stone
Cancer- blocking bladder, kidney etc, behind the cancer infection can happen
What are the potential pathogens involved in infection?
Bacteria-most common
virus/fungi-in immunocompromised patients
How do you make a diagnosis of a urinary inflection?
1) medical history check
2) Physical examination
3) Urine dipstick
4) urine microscopy, culture and sensitivity-if dipstick is postitive
What is the treatment and overall clinical management of a urinary tract infection?
ANTIBIOTICS:
- depending on the severity of the illness
- the most common bacteria in the local area
- culture urine so you cna see resistance of bacteria and give appropriate antibiotics
IMPATIENT:
-some patients are very ill so need to be treated as impatient
PAIN CONTROL
SUPPOTIVE:
-E.G. hydration
IMAGING:
-to see if there is something else going on and other treatment may be needed
How can the immune system damage the kidney?
What are the clinical presentations?
Cause INFLAMMATORY CONDITIONS VIA antibodies and inflammatory cells
Presentations:
- Neuphritic syndrome
- Neuphrotic syndrome
- Proteinuria
- GLOMERULONEPHRITIS-inflammation of the microscopic filtering units of the kidney
How would you make a diagnosis of an inflammatory condition-immunological case?
1) history and pnysical examination
2) Urine test
3) Blood test-including immunology test(used to diagnose immune disease-put on area e.g kidney)
4) imaging-start with ultrasound
5) Kidney biopsy
What is neuphritic syndrome?
Immunological inflammatory condition
- Haematuria
- variable amount of proteinuria
- may have rediced hypertension, reduced urine output, increased urea and creatine
How do you diagnose nephritic syndrome?
same steps as normal (history, physical, urine dip test, urine microscopy) + :
-urine protein:creatine ratio to quantify protein levels in urine-raised
Blood tests:kidney function and immunology test
-if appropriate do kidney biopsy-can show IgA nepropathy
What is the most common type of primary glomerulonephritis world-wide and describe it?
How is it diagnosed
IgA nephropathy:
- very high prevelance in the east
- depostition of the IgA antibody in the kidney(detected by immunohistochemistry
- dont know why it happens
- about 30% progress to kidney failure
- only diagnosed ny kidney biopsy
What is the treatment for IgA nephropathy
SUPPORTIVE:
- treat hypertension and reduce proteinuria-using Angiotensin receptor inhibit or angiotensin converting enzyme inhibitor
- Reduce salt intake
IMMUNOTHERAPY:(ongoing clinical trials)
-Renal replacement therapy-when reaching late stage of the disease and everything else is failing (kidney transplantation, dialysis)
What are organ specifc inflammatory diseases and systemic inflammatory diseases?
Organ specific-effects usually the kidneys and the lungs as they share a common antigen. It is anti-glomerular basement membran eantibody mediated(Goodpastures diseases)
Systemic:
-effects multiple organs and tissues.
- Systemic Lupus erythematosus(SLE). Detected by autoantibodies, antinuclear factors, antids-DNA(double-stranded)
- Vasculitis-detectected by measuring antineutrophil cytoplasm antibody
What is the most common cause of chronic kidney disease and kidney failure in the western world?
Diabetic Nephropathy
What are the risk factors of Diabetic neuropathy?
- hypertension
- poor diabetic control
- smoking