A 70 year old male referred by GP to ED with a 4 week history of general decline.  He has been complaining of mid thoracic back pain and has been intermittently confused. He has a background history of hypertension and is a smoker.

The following are the patients FBC and Biochem results:

HB 109g/L           PLT 89 x 10^9/L               Na 139 mmol/l     Corr Ca 3.86 mmol/l

RCC 3.79             WCC 1.0 x 10^9/L           K 4.3 mmol/l         Mg 0.95 mmol/l

MCHC 335 g/L      Neut 0.6 x 10^9/L           Cl 100 mmol/l

MCV  86 FL           Lymph 0.3 x 10^9/L        HCO3 27 mmol/l

MCH 28.8 pg                                                Ur 9.6 mmol/l

RDW 15 %                                                    Cr 144 umol/l

1. Describe and Interpret the blood results
2. How would you further investigate this patient?
3. What would be the treatment of this patient?