Renal calculi

N20.0

DESCRIPTION

This is a kidney stone or calculus which has formed in the renal tract i.e. pelvis, ureters or bladder as a result of urine which is supersaturated with respect to a stone-forming salt.

Clinical features of obstructing urinary stones may include:

  • sudden onset of acute colic, localised to the flank, causing the patient to move constantly,
  • nausea and vomiting,
  • referred pain to the scrotum or labium on the same side as the stone moves down the ureter.

Urinalysis usually reveals microscopic or macroscopic haematuria.

GENERAL MEASURES

Ensure adequate hydration.

MEDICINE TREATMENT

Adults :

Analgesia for pain, if needed:

  • Morphine, IM, 0.1 mg/kg 30 minutes before aspiration procedure, to a maximum of 10 mg (Doctor prescribed).

LoEIII

REFERRAL

All patients.