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Table 1 Clinical laboratory results for a patient who had taken a single oral overdose of 5900 mg caffeine

From: Pharmacokinetics of caffeine self-administered in overdose in a Japanese patient admitted to hospital

 

Day 1, at 12 h

Day 2, at 30 h

Day 3, at 56 h

Aspartate aminotransferase (U/L)

19

19

17

Alanine aminotransferase (U/L)

11

11

15

Serum creatinine (mg/dL)

0.50

0.57

0.69

Creatinine clearance (mL/min)

117

102

85

Serum potassium (mmol/L)

2.9

3.5

3.7

Serum sodium (mmol/L)

137

139

141

Serum glucose (mg/dL)

190

126

87

pH [venous blood gas]

7.43

7.43

not available

Lactic acid [venous blood gas] (mmol/L)

3.01

0.96

not available