Class 22 Flashcards
What are the consequences of urinary tract obstruction ?
Obstructive uropathy and urinary stasis
Urinary stasis can cause?
Infection and calculi formation
Obstructive uropathy can cause?
hydroureter (accumulation of urine in the ureter) and hydronephrosis (accumulation of urine in the kidney) or a combination of both
What is the ultimate result of urinary tract obstruction?
renal destruction
What is an example of a mechanical obstruction
renal calculi (kidney stones)
what is an example of a functional obstruction
neurogenic bladder
what is the most common type of kidney stone
calcium- oxalate or calcium-phosphate
What can cause kidney stones?
dehydration and excess calcium intake
Neurogenic bladder
improper emptying
Disorders ABOVE the micturition centre in the pons causes?
Spastic blader (incontinence/automatic emptying)
Stroke, TBI, dementia and brain tumours could all lead to
spastic bladder
Lesions below the micturition centre in the pons but above the sacral micturition centre result in?
Dyssynergia (loss of coordination)
Spinal cord injury (at T6), MS and vertebral disk problems can cause?
dyssynergia
Lesions at or below the micturition centre in the sacral area can result in?
Atonic bladder (areflexia, urinary retention). Bladder that continues to fill
Very low spinal cord injuries and MS can cause?
Atonic bladder
what are the 2 ways of getting acute pyelonephritis
- Ascending pathogens from the bladder
2. Pathogens from the bloodstream
what is present in pyelonephritis that is not present in bladder infections?
WBC casts
Acute glomerulonephritis is caused by?
streptococcus infection
Acute kidney injury
rapid reduction in renal function; reversible if treated early
Chronic kidney injury
progressive decrease in function over months or years until end stage failure is reached; refers to decreased GFR
Prerenal
anything that affects the flow of blood to the kidney
Intrarenal
also known as acute tubular necrosis. Factors that affect the kidney itself
Postrenal
anything that affects the flow of urine out
What is one of the main symptoms of all categories of AKI
Oliguria - decreased urine output