63 years old man presented with vertigo. His bloods showed the following:

Na = 136 mmol/L

K = 6.3 mmol/L

Cl = 103 mmol/L

HCO3 = 22 mmol/L

Urea = 4.7 mmol/L

Creatinine = 67 mmol/L

Mg = 0.68 mmol/L

Serum Calcium = 1.60 mmol/L

Albumin = 43 g/L

Corrected Ca = 1.58 mmol/L

Can you explain these results and what are the causes?