Blood Work focusing on Renal Function

Test Requested
Results
Reference Range
Units
BUN 42 7-30 mg / dL
Creatinine 1.6 <= 1.2 mg / L
Phosphorus 3.9 2.5-4.5 mg / L
Calcium 11.8 8.5-10.3 mg / dL
Sodium 159 135-145 mmol / L
Potassium 4.5 3.5-5.3 mmol / L
Chloride 103 98-108 mmol / L
Magnesium 0.7 0.6-1.0 mmol / L
HCT 32 35-45 %
Osmolality 335 278-305 mOsml / kg

 

Is this within normal limits for parameters affected by renal function?

If not, what are the problems ?

What else might be useful to help analyze renal function in addition to bloodwork ?