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Treatment considerations in acute renal failure.
A K Mandal1, R K Visweswaran, N R Kaldas
1Department of Medicine/School of Medicine, Wright State University/VA Campus, Dayton, Ohio.
Drugs
|October 1, 1992
Summary
Acute renal failure (ARF) requires prompt identification of reversible causes like fluid loss or obstruction. If reversible factors are absent, intrinsic renal failure necessitates dietary management and dialysis.
Area of Science:
- Nephrology
- Internal Medicine
Background:
- Acute renal failure (ARF) presents as progressive azotaemia.
- Classifying ARF into prerenal, intrinsic, and postrenal types remains clinically relevant.
- Prerenal ARF stems from fluid/blood loss; postrenal ARF results from urinary obstruction.
Purpose of the Study:
- To emphasize the importance of identifying reversible factors in ARF.
- To outline diagnostic indicators for acute intrinsic renal failure.
- To discuss management strategies for established intrinsic ARF.
Main Methods:
- Clinical assessment for reversible causes (fluid depletion, obstruction).
- Evaluation of diuretic and natriuretic responses to fluid challenge, furosemide, and dopamine.
- Consideration of dietary modifications and dialysis for intrinsic ARF.
Main Results:
- Reversible prerenal and postrenal ARF can be treated effectively if diagnosed early.
- Sustained ARF after exclusion of reversible causes suggests intrinsic renal failure.
- Lack of response to fluid or diuretic challenges indicates intrinsic renal pathology.
Conclusions:
- Early recognition and treatment of prerenal and postrenal factors are crucial to prevent sustained ARF.
- Acute intrinsic renal failure management focuses on supportive care, including dietary control and dialysis.
- Parenteral hyperalimentation in intrinsic ARF requires careful risk-benefit assessment due to infection risk.