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

Table 2 Monitoring the patient's serum potassium levels, serum creatinine levels, and platelet counts during treatment

	Creatinine, μmol/L	Potassium, mmol/L	Platelets, × 109/L
June 6th	375	3.13	1411
June 7th	473	3.89	1122
June 8th	514	3.32	933
June 9th	555	3.44	911
June 12th	714	3.65	855
June 14th	651	3.48	819
June 15th	640	5.45	811
June 16th	608	4.55	701
June 17th	651	4.37	725
June 18th	477	2.88	605
June 20th	417	3.58	534
June 21st	446	3.31	486
June 22nd	393	3.06	408
June 23rd	371	3.14	324
June 24th	359	3.25	303
June 25th	300	3.64	281
June 26th	318	3.45	266
June 27th	317	3.68	278
June 28th	315	3.58	279
June 30th	336	3.42	313
July 1st	306	3.32	310
July 2nd	311	3.89	351
July 3rd	310	3.94	356
July 4th	320	4.75	512
July 5th	315	4.26	635
July 7th	331	4.60	656
July 8th	249	4.79	607
July 9th	295	4.85	778
July 10th	249	4.79	761
July 11th	245	5.22	919
July 12th	269	5.71	965
July 13th	276	6.00	1278
July 14th	287	6.90	1386
July 18th	287	4.57	1192
July 20th	352	3.72	1281