=VLOOKUP(Lookup_value, Table_array, Col_index_num, Range_lookup)) Lookup_value â The value you want to find in the lookup value column. Lookup_value â The table range containing columns for both the lookup and return values. Col_index_num â The index number for the column containing the return values.
--Ammonium salts have a hypothetical risk of ammonia toxicity. In addition to calcium levels, ammonia and phosphate levels should be monitored. --Potassium salts have a hypothetical risk of hyperkalemia which can cause cardiac arrhythmia.
The Role of Ammonium Excretion. 1  What happens next to ammonium is somewhat complex. 2  Now remember; free hydrogen ions are not filtered by the kidney. 3  Notice that ammonium, not ammonia is produced in the proximal tubule.  The answer to this is somewhat controversial in the literature.