Chronic Kidney Disease Flashcards
you can have chronic kidney disease and normal renal function tests T or F
T
CKD tends to present without comorbidities T or F
F, usually presents with other conditions eg diabetes and CVD
the risk of developing CKD increases with age T or F
T
define CKD?
abnormal biochem or urinalysis for >90 days in >2 samples
eGFR has to be multiplied by ___ if you are afro-caribbean or african-american
1.2
a low stage of CKD would have a __ eGFR
normal/high
stage G1 CKD has an eGFR of
> 90
stage G5 CKD has an eGFR of
<15
what CKD stage should be referred to a renal specialist?
G4
what eGFR level would prompt starting dialysis?
<8
what does the A1 stage of albumin:creatinine ratio indicate?
no proteinuria
you should do an albumin:creatinine ratio if what is detected on testing?
proteinuria
you would have proteinuria if your A:C ratio was over…
3
what test should be used for AKI?
creatinine (not eGFR)
what test should be used for CKD?
eGFR
how long should be patients be montitored for after an episode of AKI and why?
2-3yrs; looking for signs of CKD
there is no relationship between past AKIs and increased risk of CKD: T or F
F, they are at a much higher risk and must be monitored
what conditions are monitored for CKD?
diabetes
hypertension
dysmorphic RBCs on urine microscopy indicate bleeding from where?
glomerulus
normal RBCs on urine microscopy indicate bleeding from where?
distal to glomerulus
when would CKD be defined as progression?
decreased eGFR by 25%
more proteinuria
symptoms of CKD?
nocturia dilute urine tired anorexia itch can't sleep anaemia (dec. erythropoeitin)
management of CKD?
control risk factors - salt reduction, smoking
ACEi to reduce BP and proteinuria (monitor eGFR)
atorvastatin 20mg
fluid restrict(1-1.5l) if overloaded
restrict phospate if PO4 high
active vit d + phosphate binders
which patients with CKD should you refer?
G4 + A3 (A:C ratio) a decreasing eGFR (>25%) difficult to control hypertension suspect renal artery stenosis
when would you qualify with difficult to control hypertension?
using at least 4 hypertensive drugs at max dose
what BP target should a CKD patient aim for if they dont have proteinuria?
140/90mmHg
what BP target should you aim for in a CKD patient with proteinuria?
130/80mmHg
secondary causes of glomerulonephritis?
diabetes
lupus
heroin addiction
obesity
vasculitic causes of CKD?
GPA
MPA
EGPA
what microangiopathies can cause CKD?
thrombotic thrombocytopaenia purpura
HUS
signs of advanced uraemia?
lemon yellow skin twitching encephalopathy- confusion/tremor peicardial rub metabolic acidosis - kussmauls
you are less likely to bleed when uraemic T or F
F, more likely
symptoms of uraemia?
nausea vomiting anorexia weight loss itch restless legs twitch altered taste
main categories of symptoms in CKD?
uraemia
anaemia
pain
type of pain felt in CKD?
neuropathic
ischaemic
bony
visceral
symptoms of anaemia?
fatigue`
why do you get fluid overload and hypertension in CKD?
impaired salt and water handling
why do you get nocturia in CKD?
can’t concentrate urine so will need to pee constantly
why do you get metabolic acidosis in CKD?
impaired reabsorption and secretion of H+ and HCO3
what can CKD cause?
bone disease
CVD
anaemia
Tx of end stage renal failure?
haemodialysis
peritoneal dialysis (draws off salt + h20)
transplant
conservative
how much higher is mortality of CVD in dialysis patients compared to non-renal patients?
10-20x higher
best form of vascular access for dialysis?
arteriovenous fistula
what form of hyperparathyroidism can happen as a result of CKD and why?
tertiary as you get hyperplasia of glands -> hypercalcaemia
should you be able to see BVs on x ray?
no, can only see them if they’re calcified
what is calciphylaxis?
calcification and occlusion of the medium sized blood vessels
what patient would not fall into the increased risk category for CKD?
- diabetic
- hypertension pt
- coronary heart disease pt
- long term steroid pt
- pt with family history of stage 3 ckd
FH of CKD
only worry if someone in the family had stage 5
chronic __ disease is a risk factor for urinary incontinence?
lung
which GFR is stage 4 CKD?
15-29
first line therapy for high BP in a patient with CKD and proteinuria
ACEi
how would a patient with stage 3 CKD be monitored
measure eGFR, PCR, Hb, K, Ca and phosphate 6 monthly