What are the differences between IV push and IV bolus?

IV push: a term used when giving a medication rapidly (less than 30 seconds). Except in emergent situations very few medications are given this way. (adeniOSine & atropine are examples)

IV Bolus: a term referring to giving a medication over 1-5 minutes. When referring to IV fluid it usually means wide open or within a given time frame ( 1 Liter Normal Saline IV bolus over 1 hour ).