Postgrad Med J 2001;77:473-474
( July )
Self assessment questions
A patient with severe hyperphosphataemia
K M Chow, P K T Li
Department
of Medicine and Therapeutics, The Chinese University of
Hong Kong, Prince of Wales Hospital, New Territories, Hong
Kong
Correspondence to: Dr Philip K T Li, Department of Medicine and
Therapeutics, The Chinese University of Hong Kong, Prince of
Wales Hospital, Shatin, Hong Kong philipli@cuhk.edu.hk
Submitted 22 February 2000;
Accepted 3 April 2000
| The first 100% of the full text of this article appears below. |
A 67 year old Chinese woman presented to her
general practitioner with abdominal pain. She had an unremarkable
history except for bronchiectasis diagnosed a decade before.
Colonoscopy was arranged in view of positive faecal occult blood.
Preliminary investigation revealed underlying renal insufficiency with
a serum creatinine concentration of 700 µmol/l (table 1). There was
no abnormality except several small tubular adenomatous polyps in the
colon.
| Table Removed (Available Only in the Full Text) |
She developed symptomatic hypocalcaemia shortly after colonoscopy, and
subsequent investigation revealed significant hyperphosphataemia, as
shown in table 1. Further evaluation confirmed chronic renal failure
secondary to polycystic kidney disease.
Questions
| (1) |
What is the cause of the hyperphosphataemia?
|
| (2) |
What action would you take?
|
| (3) |
How should this be avoided?
|
© 2001 by The Fellowship of Postgraduate Medicine
