How often do you recommend basic metabolic panel checks in a hospitalized ESKD patient on thrice weekly hemodialysis and for whom hyperkalemia is not of major concern?  

The ease (usually no venipuncture), cost (miniscule relative to the overall cost of hospitalization), blood loss (not much) and utility (varying from little to significant depending on the clinical setting) indicate at least thrice weekly BMPs. A very ill, ICU patient will need a daily BMP while an ...

It really depends on the circumstances. For very stable patients just with dialysis three times per week.