The terminology differs with where you work and where you live sometimes too. Often, when changing hospitals, you hear the nurses and docs use different lingo than you're used to.
For example, one hospital I worked at described an IV bolus, as anything given over a short time IV, and usually, it was referred to in this way IVP (IV Push)= IV Bolus, regarding meds.
If we gave IV fluids in a large amount over a short period, we called that a fluid challenge, usually when urine output was low and we wanted to "challenge" the patient's fluid state to increase urine output, if no response the next step was usually either more fluid OR IV lasix. If the pt was hypovolemic, we "tanked him up" with "more volume". I don't think I have ever written the words "IV Bolus" on an verbal order for IVF, but it doesn't surprise me that others use it frequently.
I will never forget one of my first days working in an open heart unit. The docs and nurses were referring to the pt as "wet". I vividly remember going over to the pt, and discreetly running my hand up his arm to see if he was diaphoretic and I just couldn't see it! What they meant was, he had a high chest tube output, and they were concerned that he was bleeding too much!! THEN, the following post-op day, if you heard someone say he was "wet", it meant that the CXR shows some degree of pulmonary edema, and lasix was indicated.
The bottom line is, don't be afraid to ask, especially when it comes to IV's. Always clarify what is actualy meant by an order before you carry it out.
PS, Anything you can give via IV can be given via hep lock. However, if it has the skinny extension tubing on it, it is difficult to get a blood transfusion to run through that, especially if the pt needs it fast (usually not the case on a Med-surg unit.)