The nurse is caring for a client with a digitalis level of 2.1 ng/mL. Which signs would the nurse be alert for in this client?

Number 4 is correct.

The therapeutic range of digitalis is 0.5 to 2 ng/mL. This client is at the toxic level. Early signs of digitalis toxicity include anorexia, nausea, and diarrhea. Tinnitus, flushed skin, and easy bruising are not consistent with toxic digitalis levels.