Differences acute renal failure vs chronic renal failure

1. DIFFERENCES
D R N I L E S H N K A T E , P R O F E S S O R , P H Y S I O L O G Y , / D I F F E R E N C E S Page 7
Difference Between
Acute & chronic Renal Failure.
Acute Renal Failure
(ARF)
Chronic Renal Failure
(CRF)
1
Onset – over days
to weeks
Onset – over weeks to
months.
2
Reversibility –
Invariably
reversible
Usually Irreversible
3
Cause – Pre-renal
or Post-renal
Mostly Renal.
4
Urinary volume –
Oliguria & Anuria.
Polyuria & Nocturia.
5
Renal failure casts
- Absent
Renal Failure casts –
Present.
6
Specific Gravity –
High.
Specific Gravity – Low
& fixed.
7
Past history of
renal disease –
Absent
Present.
8
Dialysis - Required
for short period
Required repeatedly.
9
Renal
transplantation –
Not required
Required.