Which laboratory finding would indicate a 62-year-old male client is at risk for ventricular dysrhythmia?

  • magnesium 0.8 mmEq/L
  • potassium 4.2 mmol/L
  • creatinine 1.3 mg/dL
  • total calcium 2.8 mmol/L
Number 1 is correct.
Abnormalities in magnesium levels may put the client at risk for ventricular dysrhythmia. A hypomagnesemia level of 0.8 mEq/L would be of concern (normal range is 1.5 – 2.5 mEq/L). The other values listed are normal lab values.