First of all you made it through the night!!! Some shifts I just want to crawl into a ball haha.The problem with nurses we strive to offer the best patient care to our knowledge and ability, but soon come to realise that with staffing shortages and/or patient load just can't.
If workload is too high, always tell your nurse incharge and state reasons why and document in notes before getting caught up. It may not always change your shift, but you've put it on the record if anything happens and, if nothing can be done that night, improved staffing for the morning might be arranged.
You are one person, you can only do what you can do! I work methodically through my workload. Don't try to get distracted (easy said than done) especially when doing medications. I find when you get flusted it takes longer to do things, than if just make a plan of what's highest priority and work down the list. Assessment of patients and obs, medications, personal care (as best as possible in that order).
Like what was said previously, a standard infusion line takes about 20mls to prime, so then dialling up minus 20ml from the volume of fluids you are giving. Also with piggybacked IVs onto fluids put the volume of your maintenance fluids as 1mL, so when your infusion of IVABs is finished, it will beep without putting air in the line and is ready for you to flush. I tend to also put a timer on my heparin go off after 4hrs, but if you can't get to it quickly to just press continue, then I'd recommend not doing this.
Shifts like this, we all have to come to terms with the fact that we can't do everything and next shift will have to pick up what couldn't be done. It's a 24hr job after all! As long as you work safely and to the best of our ability. It gets easier with experience, but some shifts are just plain horrible.