Presentation of Diseases of Kidney and Urinary Tract Flashcards
What does the upper urinary tract include?
Kidneys - parenchyma and pelvi-calyceal system
Ureters - pelvi-ureteric junction, ureter and vesico-ureteric junction
What does the lower urinary tract include?
Bladder
Bladder outflow tract - bladder neck, prostate, external urethral sphincter, urethra, urinary meatus, and foreskin
What is the nature of renal diseases?
Infection, inflammation, iatrogenic (nephrotoxicity, PCNL), neoplasia (renal tumours and collecting system tumours), trauma, vascular and hereditary
What is infection in renal diseases called?
Pyelonephritis
What are types of inflammation in renal diseases?
Glomerulonephritis and tubulointestinal nephritis
What are vascular causes of renal disease?
Atherosclerosis, hypertension and diabetes
What are hereditary causes of renal disease?
Polycystic kidney disease and nephrotic syndrome
What is included in the presentation of renal diseases?
pain, pyrexia, haematuria, proteinuria, pyuria (pus in urine due to infection), mass on palpation and renal failure
What is the definition of proteinuria?
Urinary protein excretion of more than 150mg/day
In clinical practice, how many types of haematuria is there?
3 - visible (Frank), microscopic and dipstick
What is the definition of microscopic haematuria?
More than 3 red blood cells per high power field
What is oliguria?
When urine output is more than 0.5ml/kg/hour
What is anuria?
Absolute anuria - no urinary output
Relative anuria - less than 100ml/24hrs
What is polyuria?
Urine output more than 3l/day
What is nocturia?
Waking up at night equal to or more than 1 occasion in the night
What is nocturnal polyuria?
Nocturnal urine output more than 1/3 of total urine output in 24hrs
What is the definition of acute kidney injury in terms of staging?
Risk - increase in creatinine level x 1.5 or decrease in GFR by 25%
Injury - 2x and 50%
Failure - 3x and 75%
Loss - persistent AFR or complete loss of kidney function > 4 weeks
End stage kidney disease - complete loss of function more than 3 months
What are the functions of the kidney?
Body fluid homeostasis - fluid overload
Electrolyte homeostasis - Na, K and Cl
Acid base homeostasis
Regulation of vascular tone - BP
Excretory functions - physiological waste and drugs
Endocrine functions - erythropreitin, Vit D and renin
What are some of the presentations of chronic renal failure?
Asymptomatic, tiredness, anaemia, oedema, high BP, bone pain, pruritus, N/V, dyspnoea, pericarditis, neuropathy and coma
What is the nature of ureteric diseases?
Infection - ureteritis
Iatrogenic/ Trauma - cut or tied in hysterectomy or colon resection Neoplasia
Hereditary - PUJ obstruction and VUJ reflux
Obstruction