Pseudohyperkalemia caused by essential thrombocythemia in a patient with chronic renal failure: A case report

Table 1 The patient's electrolytes and renal function results from different sample types at different time points

	June 1st		June 3rd		June 4th
	Serum	Plasma	Serum	Plasma	Serum	Plasma
Potassium, mmol/L	6.32	3.97	5.42	3.09	5.20	3.97
Sodium, mmol/L	135.7	137.3	136.9	137.8	135.5	137.3
Chloride, mmol/L	91.5	96.6	91.0	91.1	91.9	96.6
Calcium, mmol/L	2.34	2.30	2.32	2.25	2.62	2.30
Urea nitrogen, mmol/L	3.64	4.63	8.78	8.68	7.11	8.87
Creatinine, μmol/L	220	240	469	481	346	315
Uric acid,μmol/L	541	606	2252	2236	710	825