Renal Flashcards
What are the 5 functions of the kidneys?
(Describe) why it happens
- Remove waste product filters to make urine from waste products.
- Reabdorbs fluids - Secretes toxins -Millions of nephrons (Creatine breakdown on muscles and Urea waste products. - Controls acids/base/ Fluids/ Electrolyte
-Glomerus where the acids/fluids and electrolytes leave the blood.
- PCT sodium gets reabsorbed
- DCT minimal reabsorbtion is where homes like ADH H2p reabsorbtion
Aldosterone causes Na reabsorbtion (water follows) - Control of BP cell sensors at the DCT and glomerulus pick up on low BP
By secretion of renin– Angiotesnion 1— ACE enzyme— Angiotensin 2
Angio 2 causes: Vasoconstriction increases BP and Activates the reabsorbtion of Aldosterone Na (reputake= water follows) - Makes erythropoietin in kidneys, allowing for the bone to stimulate RBC production
- Activates the vitamin D, stimulates the Ca lvl
What is AKI?
When suddenly the kidneys stop working.
Pre-renal: (focus on blood) Decreased BP, Hypovolemia, hypotension and septic shock
Intra renal: Direct kidney damage such as Glomerulonephritis, and tubular necrosis.
Post renal: Obstruction of urine, such as kidney stones, tumours, and inflammation.
what are the impacts of AKI (pre-,intra, post) and assessments?
Pre-renal: decrease in blood supply
Intra: unable to filter out wastes
post: back-up of urine in the ureters
Overall assessments: GFR, Urea 3.3.7.7mmol/L increase may show complications of filtering, Creatine 40-90mmol/L Produced by the breakdown of muscles (byproduct)
What is the treatment for AKI?
Pre-renal- give fluids to restore blood flow
Intra- Fluids to flush out the antigens, give diuretics to limit sodium reabsorbtion, CT scan to assess (be cautious of dye allergy) and diuretics with gentamycin.
Post- Surgery / Catherisation
Overall treatment: Prevention and identifying the underlying cause
- ACE inhibitor (blocks the ace enzyme converting to angiotensin 2 acts as a vasodilator and prevents reptake of Na. - Control diet - EPO (stimulate the RBC) -Antibiotics - Kidney transplant/ dialysis
What is CKD?
is a progressive disease where the kidney function deteriorates, caused by diabetes, hypertension (ischemia) or AKI (unresolved leads to glomerulonephritis)
what does large-scale damage to the nephrons cause?
Decreased: GFR, Reabsorbtion, Filtration, secretions (renin decreased Na) and BP regulation systems.
What are the s+s of CKD?
Azotemia (urea) SOB, Fatigue, weight gain fluid build-up, anemia due to (VD not being activated for RBC), decreased urine output.
what are the stages of CKD?
The normal function is 100ml/min
Stage 3- 60ml/min
4- 30ml/min
5- 15ml/min (renal failure)
what are the CKD treatments?
Teach and encourage a diet that is low sodium/potassium/phosphate
Fluid restriction
Don’t use OTC meds rough on the kidneys (NSAID)
Monitor and treat low RBC/ electrolyte imbalances (supplements, EPO, fluids)
Iron supplements (anemia)
Weight monitoring
What is dialysis
Dialysis is a medical treatment that helps the body clear waste and excesss fluids when the kidneys are not working well.
What are the two types of dialysis?
- Haemodialysis uses a machone to filter blood then returned to you. Done commonly at hospitals. Serveral times a week.
Monitory fluids - Peritoneal Dialysis (cavitty abdomen) as a filter. Fluids get drained and replaced. Can be done at home.
Can be done in cycles.