When a Patient Is Experiencing Digoxin Toxicity,which Clinical Situations Necessitate

When a patient is experiencing digoxin toxicity,which clinical situations necessitate the use of digoxin immune Fab? (Select all that apply.)
(Answer with small letters,followed by a comma and a space [e.g.,a,b,c,d])

A) The patient reports seeing colourful halos around lights.
B) The patient's serum potassium level is above 5 mmol/L.
C) The patient is experiencing nausea and anorexia.
D) The patient's heart rhythm is atrial flutter with a rate of 115 per minute.
E) The patient is experiencing long runs of ventricular tachycardia.
F) The patient is experiencing severe sinus bradycardia that does not respond to cardiac pacing.
G) The patient has taken an overdose of greater than 10 mg of digoxin.
H) The patient reports fatigue and headaches.