This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Medicine
ECG changes that occur after administration of Digoxin includes 
Select and explain. 
A. ST elevation, B. PR prolongation, C. QT prolongation, D. ST depression
D: ST depression
Answer: D: ST depression 
Explanation: (D) ST depression# Digoxin effects on ECG: Shows down slope ST depression with a characteristic "Salvador Dali sagging" appearance Flattened, inverted, or biphasic T waves. Shortened QT interval. Delay due to development of 1:1 A-V conduction.