Chronic Kidney Disease Flashcards
What is it?
impaired renal function for >3m based on abnormal structure or function
OR
GFR <60 for >3m w or w/o evidence of renal damage
What stage to sx usually start to appear?
4
What signifies ESRF
GFR <15 or need for RRT
What are the causes of CKD?
- DM T1>T2
- GN - commonly IgA
- Unknown - many present w small shrunken kidneys
- HTN or renovascular disease
- Pyelonephritis + reflux nephropathy
Others - obstructive (AKIs), chronic interstitial nephritis, prev AKI, ADPKD
Who should automatically be screened for CKD?
- DM, HTN, CHD
- Structural renal disease, stones BPH
- Recurrent UTIs, childhood hx of vesicoureteric reflux
- Multisystem disorders which may include the kidney e.g. SLE
- FHx of ESRF or known hereditary disease
- Opportunistic detection of haematuria or proteinuria
What may be found OE in a patients first presentation
- pallor
- uraemia skin (yellow tinge)
- Purpura, excoriations
- Raised BP
- Cardiomegaly
- Signs of fluid overload
- Poss cause e.g. ballotable kidneys in PKD
What may be seen in untreated CKD?
in extremis - severe uraemia, hyperkalaemia - arrhythmia, encephalopathy, seizures or coma
Give the classification of CKD including the diff stages and GFRs
Stage 1: >90 2: 60-89 3A: 45-59 3B: 30-44 4: 15-29 5: <15 - established RF
What signs would u look for in peripheries of a pt w known CKD/ESRF?
HTN
AV fistula (thrill, bruit, recently needled)
Signs of prev. transplant - bruising from steroids, skin malignancy
What signs would u look for in the face of a pt w known CKD/ESRF?
pallor (anaemia)
Yellow tinge (uraemia)
Gym hypertrophy (cyclosporin)
Cushingoid appearance from steroids
What signs would u look for in the neck of a pt w known CKD/ESRF?
- Line insertion (removed = scar over internal jugular + larger scar in breast pocket area)
What abdominal signs would u look for in a pt w known CKD/ESRF?
- PD catheter, scar = midline scar below umbilicus + small round scar to side of midline)
- signs of prev transplant - hockey stick scar, palpable mass
- PKD (ballotable kidneys)
What OTHER signs would u look for in a pt w known CKD/ESRF?
Signs of diabetic neuropathy, retinopathy, CVD or PVD
What investigations would u do for a pt w CKD
- BLOOD - Hb (normochromic, normocytic), ESR, U+E, glucose, reduced Ca, raised phosphate + alk phos (renal osteodystrophy), raised PTH if CKD 3 or more
- URINE - dipstick, MC+S, albumin:creatinine
- IMAGING - USS (usually small but big in infiltrative disorders (amyloid, myeloid), PKD + DM
- HISTOLOGY - do if rapidly progressive or unclear cause + normal sized kidney
What are reversible causes of CKD?
oBSTRUCTION Nephrotoxic drugs High Ca2+ CV risk (smoking) Uncontrolled DM