PHRM 825: CKD and ESRD Flashcards
What percent of people in ESRD are on dialysis/get a kidney transplant and which is better?
~70% dialysis
~30% transplant
Transplant is ALWAYS better than dialysis
3 major causes of CKD
1) Diabetes
2) HTN
3) Glomerulonephritis
How does KDIGO define CKD?
Abnormalities of kidney structure, present for >3 months with implications for health
What things does KDIGO use to classify the stages of CKD?
Cause, GFR, and albuminuria category
What is the definition of AKI?
Change to kidney function over a short period of time (couple of weeks max)
What stage of CKD do we start to worry about patients?
Stage 3
A 20 year old without ESRD will live an additional __ years
47-60
A 60 year old without ESRD will live an additional ___ years
16-23
A 20 year old with ESRD will live an additional ___ years
17-21
A 60 year old with ERSD will live an additional ____ years
4-5
What formula is the most commonly used to estimate Creatinine clearance?
Cockroft and Gault
3 qualities of the Cockroft and Gault formula for estimation of CrCl
- Accurate for patients with stable kidney function (assuming SCr is stable)
- Good predictor of GFR and easy to use
- Tends to overestimate renal function in moderate to severe kidney impairment
What formula is the most accurate measure of GFR?
MDRD (includes adjustments for race and gender)
What is the Cockroft and Gault equation for creatinine clearance?
Men: CrCl = (140-age)IBW/(SCr72)
Women: [(140-age)IBW/(SCr72)]*0.85
What are 7 complications associated with CKD and ESRD patients?
- Uremia
- Fluid retention
- Electrolyte imbalance
- Mineral and Bone Disorder (CKD-MBD)
- Anemia
- Acid-base disorders
- Nutrition
Definition of uremia
Cluster of symptoms which is associated with ESRD from any cause. Symptoms are due to the accumulation of waste molecules in the blood that are normally removed by the kidneys
What is measured to assess signs and symptoms of uremia?
BUN
What are 2 results of fluid retention?
Edema and increase in blood pressure
Should you restrict fluids for a patient with fluid retention?
Not generally necessary if Na+ intake is controlled, however large amounts of free water should be avoided
In what cases will diuretics not work?
When the kidneys are not working
____ diuretics are ineffective when CrCl < 30 mL/min
thiazide
____ diuretics will work when CrCl < 30 mL/min
loop
What diuretic can be used for patients that have a sulfa allergy to loop diuretics and what is the risk of this diuretic?
Ethacrinic acid; odotoxicity
What 3 things can cause the parathyroid gland to increase production of iPTH?
- Hyperphosphatemia
- Decreased vitamin D activation
- Hypocalcemia
How does iPTH result in fractures?
In causes reabsorption of Ca+2 from bone
What is the difference between phosphate and phosphorus?
Phosphate –> Dietary intake
Phosphorus –> portion of phosphate measured in blood
What medications can treat hyperphosphatemia?
Phosphate binders
What is an important counseling point for phosphate binders?
Always take with food
How do phosphate binders work?
They bind dietary phosphate that is ingested in the food and the chelate is eliminated in the feces