Renal Disease Flashcards
Most common causes of CKD
diabetes and HTN
what measures are used to determine the severity of kidney disease
proteinuria and GFR
MOA of loop diuretics
inhibit the Na-K pump in the ascending loop of Henle -> less water reabsorbed
Long term use of loop diuretics effect on calcium
depletion of calcium (harmful to bone)
MOA of thiazide diuretics
inhibit the Na-Cl pump in the distal tubule
long term use of thiazide diuretics on calcium
increases calcium reabsorption - protective effect on bone
Aldosterone MOA
increase Na and water retention and decrease K in the distal tubule
Risk factors for DIKD
multiple nephrotoxic medications, baseline reduction in renal blood flow, large doses or frequent use of nephrotoxic medications, and increased age
common medications associated with DIKD
aminioglycosides, amphotericin B, cisplatin, colistimethate, cyclosporine, loop diuretics, NSAIDs, radiographic contrast dye, tacrolimus, and vancomycin
When is CrCl based estimations of kidney function limited
low or high muscle mass, obese, liver disease, pregnancy
GFR considered normal or high in CKD
90+ and kidney damage
GFR considered mild decrease in CKD
60-89 with kidney damage
GFR considered mild-moderate disease in CKD
45-59
GFR considered moderate-severe disease in CKD
30-44
GFR considered severe disease in CKD
15-29
GFR considered kidney failure in CKD
GFR category G1
90+ and kidney damage
GFR category G2
60-89 and kidney damage
GFR category G3a
45-49
GFR category G3b
30-44
GFR category G4
15-29
GFR category G5
CKD stage 1 GFR
90+ and kidney damage
CKD stage 2 GFR
60-89 and kidney damage
CKD stage 3 GFR
30-59
CKD stage 4 GFR
15-29
CKD stage 5 GFR
Normal to mild increase in measured urine albumin
measured urine albumin termed a moderate increase
30-300
a severe increase in measured urine albumin
> 300
ALbumiuria category 1
Albuminuria category 2
30-300
Albuminuria category 3
> 300
Goal BP in CKD (KDIGO)
When should ACE/ARB be stopped due to SCr increase?
> 30%
Dose reductions effect on peaks and troughs of medications
reduce peaks but maintain trough concentrations
Extending dosing intervals effect on peaks and troughs of medications
maintain peaks but reduce trough concentrations
Antimicrobials/antivirals/antifungals requiring dosage adjustments for impaired kidney function
acyclovir, valacyclovir, amantadine, amphotericin, aminoglycosides, azole antifungals, anti-tuberculosis medications ethambutol, pyrazinamide, aztreonam, beta lactams, ganciclovir, valganciclovir, maraviroc, NRTIs, polymyxins, quinolones (except moxifloxacin), SMZ/TMP, vancomycin
Cardiovascular medications that require dosage adjustments for impaired kidney function
antiarrhythmics (digoxin, disopyramide, procainamide, sotalol), dabigatran, LMWHs, Rivaroxaban, statins
Pain/gout medications that require dosage adjustments for impaired kidney function
allopurinol, colchicine, gabapentin, pregabalin, morphine, codeine, tramadol IR
GI medications that require dosage adjustments for impaired kidney function
Famotidine, ranitidine, metoclopramide
Drugs contraindicated in CrCl
chlorpropamide, cidofovir, ribavirin, voriconazole IV
Drugs contraindicated in CrCl
Avanafil, bisphosphonates, dabigatran, duloxetine, fondaparinux, NSAIDs, potassium sparing diuretics, ribavirin, rivaroxaban, tadalafil, tramadol ER, SGLT2 inhibitors
CKD patients should be screened for what abnormalities associated with CKD-MBD
PTH, phosphorus, calcium, vitamin D
treatment of secondary hyperparathyroidism in CKD
phosphate restricted diet, phosphate binders
Duration of use for aluminum based phosphate binders
4 weeks - aluminum is toxic to the nervous system and bone
which phosphate binders are used first line for hyperphosphatemia of CKD
calcium based phosphate binders
Aluminum hydroxide brand name
AlternaGEL, Amphojel,
Aluminum hydroxide dosing in hyperphosphatemia of CKD
300-600 mg TID with meals
Aluminum hydroxide side effects
constipation, poor taste, nausea, aluminum intoxication, dialysis dementia, osteomalacia
Aluminum hydroxide monitoring
Ca, PO4, serum aluminum concentrations, PTH
Calcium acetate brand name
PhosLo, Phoslyra
Calcium acetate dosing in hyperphosphatemia of CKD
667-1334 mg TID with meals