Haematuria Flashcards
What is haematuria?
=Passage of
> 3 RBCs/ High Power Field
on urine microscopy
What is Microscopic Haematuria?
- It is incidental finding at routine medical exam.
- Dipstick screening should be confirmed by microscopy , >3 RBCs/ HPF
What is Macroscopic Haematuria?
-It is visible to the naked eyes.
-The urine will be dark,
rose-discolouration,
clots may be present.
- Beware of food and medication causing discolouration.
- Do a dipsticks to see that it is blood
What is initial haematuria?
-It is when blood is visible at the beginning of micturition,
and then clears.
-Origin of initial haematuria will be the urethra
What is terminal haematuria?
- It is when blood is seen at the end of micturition.
- The origin will be prostate/bladder
What is terminal haematuria a classical presentation of?
-Schistosomiasis (Bilharzia)
What is total haematuria?
- Blood is visible throughout micturition.
- The origin is upper tracts or bladder.
What are the causes of haematuria?
- Nephrological
- Urological
- Haematological
What are the characteristics of nephrological haematuria?
- There will be 2/3 + protienuria on dipstick.
- The red blood cells will be dysmorphic.
- There might be red cell casts on microscopy.
Name examples of nephrological causes of haematuria:
- Glomerulonephritis
- IgA nephropathy
What are the characteristics of haematological and urological haematuria?
- No proteinuria
- Normal RBCs
- No red cell casts
What can contribute to haematological haematuria:
- Warfarin
- Blood dyscrasias
What does white cell casts mean:
-It may mean acute pyelonephritis
Where can urological causes of haematuria arise from?
From the:
- Kidneys
- Ureter
- Bladder
- Prostate
What to kidneys or from kidneys can cause haematuria?
- Trauma (Blunt/Penetrating)
- Beware of minor trauma
-Uretopelvic Junction (UPJ) can cause hydronephrosis.
- Infection
- Acute Pyelonephritis
- TB
- Schistomiasis - Renal Tumour
- Malignant/ Benign - Renal stone
- Polycystic Kidney Disease
- Vascular Cuase
- Renal Vein Thrombosis
- Arterio-Venous fistula.