When I rang up for results I got told they were normal. Just checked online and this is tests and results. AIBU to be really confused? 
Pathology Investigations
Urea and electrolytes
Serum urea level 6.4 mmol/L [2.8 - 7.2]
Serum creatinine level 92 umol/L [45.0 - 84.0]
Above high reference limit
Serum sodium level 143 mmol/L [133.0 - 146.0]
Serum potassium level 4.2 mmol/L [3.5 - 5.3]
GFR calculated abbreviated MDRD 64 ml/min/1.73m^2
COMMENTS eGFR 60-89: Stage 2 CKD
Repeat teast as per GP