ARF Flashcards Preview

Renal System > ARF > Flashcards

Flashcards in ARF Deck (11)
Loading flashcards...
1
Q

define ARF

A

sudden onset of haemodynamics, filtration and excretion failure of the kidneys = accumulation of metabolic toxins and dyers of fluid, electrolytes and acid-base balance

2
Q

define AKI

A

sudden reduction of kidney function that can be repaired if the BM is intact

3
Q

explain pre-renal azotaemia

A

high production of nitrogenous waste (urea) ± low GFR due to reduced renal perfusion

4
Q

how do you know its pre-renal

A

good USG, good response to fluids, presents dehydrated, hypovolaemic

5
Q

explain renal azotaemia

A

azotaemia due to low GFR due to intrinsic or functional renal dz

6
Q

explain tubular necrosis

A

due to toxins or ischaemia come together to cause acquired ARF/AKI

7
Q

causes of acquired AKI/ARF

A

cardiac dz, dehydration, anaesthesia/surgery, nephrotoxic drugs, fever, pre-existing renal dz, older

8
Q

causes of interstitial nephritis

A

pyelonephritis, leptospirosis

9
Q

explain post-renal azotaemia

A

reabsorption of urine escaped from UT or low GFR due to urinary obstruction

10
Q

management of ARF/AKI

A
allow repair - dialysis?
improve renal haemodynamics
tx cause
supportive care and monitoring
maintain homeostasis - increase urine output
11
Q

what are common signs of lepto

A

hepatic necrosis, thrombocytopaenia, vasculitis