I will be away until Thursday of next week, so am sending out Case 44 early. Summaries of Case 43 and 44, together with Case 45, will appear in the week beginning 16 November. Thanks to David Williams for suggesting this Case. A serum sample from a 47 year old male attending a medical outpatient clinic produces the following results. Clinical information given is 'on simvastatin'. Cholesterol: 20.7 mmol/L Triglycerides: >37 mmol/L Urea and electrolytes, and liver function tests are within reference limits apart from a sodium of 130 mmol/L. Three months earlier, cholesterol was 4.7 mmol/L and triglycerides 1.5 mmol/L; and three months prior to that, cholesterol was 15.2 mmol/L and triglycerides 33.2 mmol/L. Comment (maximum 2 lines if possible please) and/or other action directly to me please ([log in to unmask]), not to the mailbase. With best wishes Gordon Challand %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%