SAQ. How to evaluate a 30 years female with visible haematuria?
D/D:
-
- Menstruation, Infection (cystitis, pyelonephritis)
- SLE with LN, Vasculitis
- GN : especially IgA nephritis
- ADPKD
-
- Stone, Trauma, Tumor
-
- HTN
- Drugs
- Bleeding disorders
- Haemoglobinuria/myoglobinuria (causes)
SAQ. A 25-year-old lady with arthralgia, skin rash and haemoptysis. Urine R/M/E reveals protein (++) and haematuria.
- a) What are the possible differentials?
- b) What other history do you want to take to reach a diagnosis?
Hints: Haemoptysis+Haematuria
Joint pain+Rash+Proteinuria |
Possible differentials are:
- SLE with LN
- Systemic vasculitis, HSP
- RA with pulmonary involvement
- Sarcoidosis
- Systemic Sclerosis
- Disseminated TB
Evaluation of hematuria
(source: synopsis of nephrology)
History:
- Intense exercise, abdominal trauma, menstruation, recent bladder catheterization
- Fever, abdominal pain, dysuria, frequency ——————– → UTI
- Passage of clots in urine ——————– →extraglomerular cause of hematuria.
- Periorbital puffiness, weight gain, oliguria, dark-colored urine, edema or hypertension ———– → glomerular cause (painless hematuria)
- Recent throat or skin infection ——————— → postinfectious glomerulonephritis.
- Joint pains, skin rashes, prolonged fever, anemia, weight loss, hemoptysis ——————— → CTD, vasculitis, HSP
- Bleeding from other sites, anemia —————→ bleeding diathesis
- Drug history: ————– →intake of certain drugs or toxic substances
- Family history of kidney disease:
- Alport syndrome, collagen vascular diseases, urolithiasis, polycystic kidney disease
General Examination:
- Periorbital puffiness, peripheral edema
- BP
- Skin survey: purpura
Systemic examination:
Abdomen:
- palpable kidneys
- genitalia
Fundoscopy:
- hypertensive retinopathy
Investigation:
The laboratory tests ordered for the assessment of hematuria should be according to the clinical history and the physical examination. The helpful tests are:
Investigation | Finding |
Urinalysis with phase contrast microscopy |
|
Urine calcium/Cr molar ratio |
|
Blood urea nitrogen (BUN) and serum creatinine |
|
CBC with platelet count |
|
Complement level ASO, anti-DNase B, ANA, anti ds DNA |
|
Urine culture |
|
Imaging study:
|
To find out structural abnormality
|
Renal biopsy |
|
Patients with hematuria may usefully be classified into one of the following four groups:
- Gross hematuria
- Symptomatic microscopic hematuria
- Asymptomatic microscopic hematuria with proteinuria
- Asymptomatic microscopic (isolated) hematuria
Management:
Principles of treatment:
- Hematuria is a sign and not itself a disease; treatment should be directed at the process causing it.
- Asymptomatic (isolated), persistent hematuria usually does not require treatment.
- follow up yearly
- Treatment of the cause
- surgical intervention: stone, tumor, PUJ obstruction