Pseudohyperkalemia in a Non-compliant CLL Patient: A Case Study

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Table 1.

Laboratory results

Laboratory Test	Initial Plasma Sample Result	Recollected Plasma Result	Recollected Serum Result	Reference Interval Plasma (P) / Serum (S)
Sodium	120 mmol/L	123 mmol/L	142 mmol/L	137-145 mmol/L (P/S)
Potassium	>14.0 mmol/L	>14.0 mmol/L	4.7 mmol/L	3.5-4.5 mmol/L (P) 3.5-5.3 mmol/L (S)
Chloride	106 mmol/L	106 mmol/L	107 mmol/L	98-107 mmol/L (P/S)
Carbon Dioxide	22 mmol/L	21 mmol/L	23 mmol/L	23-30 mmol/L (P/S)
Glucose	92 mg/dL	93 mg/dL	121 mg/dL	75-110 mg/dL (P/S)
BUN	17 mg/dL	17 mg/dL	17 mg/dL	9-20 mg/dL (P/S)
Creatinine	1.01 mg/dL	1.02 mg/dL	1.11 mg/dL	0.66-1.25 mg/dL (P/S)
Calcium	8.2 mg/dL	6.7 mg/dL	9.4 mg/dL	8.4-10.2 mg/dL (P/S)
Uric Acid (uricase)	1.3 mg/dL	1.3 mg/dL	0.6 mg/dL	3.5-8.3 mg/dL (P/S) male