This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Pharmacology
Insulin causes: 
Select and explain. 
A. Na+ entry into cells, B. K+ exit from cells, C. Na+ exit/K+ entry, D. K+ entry into cells
D: K+ entry into cells
Answer: D: K+ entry into cells 
Explanation: Insulin causes potassium ion entry in to the cells causing hypokalemia Insulin can be used to treat hyperkalemia apa from diabetes In hyperkalemia it is usually administered with glucose (REF.Textbook of medical pharmacology K D TRIPATHI 6 Edition, Page No - 259)