You have a patient with a history of heart failure (on Digox…

You have a patient with a history of heart failure (on Digoxin) who has been hospitalized with diverticulitis (inflamed “pouches” in the colon).  The patient is put on a low fiber diet while the diverticulitis is being treated.  If her dosage of Digoxin remains the same, which of the following may occur when she starts the low fiber diet?