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A client who has a serum potassium (K+) level of 2.9 mEq/L (2.9 mmol/L) tells the nurse that he does not feel like eating lunch. The nurse checks his serum digoxin level from that morning and notes that it is 1.0 ng/mL (1.2 nmol/L). What should the nurse determine about this digoxin level? 1.Low 2.Extremely toxic 3.Within the therapeutic range 4.Just above the high end of the therapeutic range
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