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Table 1 Time course of serum magnesium level, ECG, level of dose reduction of chemotherapy, and supplementation of magnesium

From: Temporary loss of consciousness during cetuximab treatment of a patient with metastatic colon cancer: a case report

Total number of administrations

Mg sulfate supplementation

Dose reduction

Abnormality on ECG

Serum Mg

CTCAE grade

12

20 mEq

None

No

0.9 mg/dL

2

13

20 mEq

1st level

No

1.0 mg/dL

2

14

20 mEq

1st level

No

0.9 mg/dL

2

15

40 mEq

2nd level

No

0.9 mg/dL

2

16

40 mEq

2nd level

No

0.9 mg/dL

2

17

40 mEq

2nd level

No

0.9 mg/dL

2

  1. Mg magnesium, irinotecan, ECG electrocardiogram, CTCAE Common Terminology Criteria for Adverse Events