the seven tests reviewed in greatest detail include sodium-lithium countertransport , intraerythrocytic sodium , sodium ( or lithium ) -potassium cotransport , lithium leak , sodium-potassium atpase pump , sodium pump sites ( ouabain binding ) , and circulating sodium pump inhibitor ( 'digoxin-like factor ' in some studies ) .
C0001473
atpase
C0001479
sodium pump