medium · NCLEX-RN Pharmacological and Parenteral Therapies

A nurse is administering digoxin to a client with heart failure.

Which laboratory value requires the nurse to hold the medication and notify the healthcare provider?

  1. Digoxin level 1.2 ng/mL (Reference range: 0.5-2.0 ng/mL).
  2. Calcium 9.5 mg/dL (Reference range: 9.0-10.5 mg/dL).
  3. Sodium 138 mEq/L (Reference range: 135-145 mEq/L).
  4. Potassium 3.1 mEq/L (Reference range: 3.5-5.0 mEq/L).

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