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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