Renal Calculi Flashcards
Common in what age group
20-40
More common in which gender
Males
Most common stone
Calcium oxalate
Uric acid stones are precipitated by what
Chemotherapy
High protein diet
Drugs which cause calculi
Diuretics Antacids Steroids Aspirin Allopurinol
What conditions cause stones
Hyperparathyroidism Sarcoidosis Cancer Recurrent UTI Dehydration
Presentation
colic- ‘loin to groin’
Nausea + vomiting
Patient cannot sit still
What kind of haematuria may be present
Microscopic
Investigations
KUB xray
CT- definitive
What relaxes the ureter to ease the passage of a stone
Tamsulosin
how long should you give for a stone to pass
4 weeks
surgery for removing stones that have not passed
Ureteroscopy with laser lithotripsy (contraindicated in active infection)
Treatment of obstruction caused by calculi
Urgent percutaneous nephrostomy