errors that are:
caught by the patient (or nurse if in hosp) before they take it
and
reaches patient
Shannon - I'd have to agree with Epic - the error rate can be as low as 0.1% to 3-4%. Look into ISMP - Institute of Safe Medication Practices. That is the place where hospital pharmacists report drug errors.
If you're in a "good" facility - in which the error is considered a "learning" situation, the error is publicized (without specific info about who did it & the actual pt) - so it becomes a learning situation.
Often, errors in hospitals which are attributable to pharmacists (which is everything which comes out of the pharmacy...even if a tech did it), is tied to "systems" or "environmental circumstances".
That means that programming the standard computer order sets (which Tussionex is busy doing as we speak) is so very important! A decimal here or there, an error in q4h vs q2h can be instrumental in causing an error, partially because we do such repetitive stuff over & over & over again. You may not be aware, but a post-op CABG pt may come out of the OR with 30 drug orders which must be entered & we may have 4 or 5 CABG pts on any given day.
So - its easy to just accept the "standard" CABG orders....this is entirely different than an outpt pharmacy when you are presented with one script at a time (now - it may have 5 rxs on it, but it is not "routine").
So - our errors can be frequent & often due to repetitiveness. Additionally, the environment plays a HUGE part. Studies have shown that poor lighting, poor computer placement, alternative "sounds" (like music) which impacts areas in which calculations take place all contribute to error rates.
In a hospital, yes....dispensing Maxzide instead of Dyazide (or the generic equivalents would be an error)...but we have therapeutic equivalents which allow us to substitute Vistaril for Atarax (we actually have neither - we have the generic equivalents which are interchangeable).
Hospital rules are different with respect to what you can & cannot substitute for a particular drug based on P&T committee decisions...so those substitutes are not considered errors. Likewise, in either environment - hospital or retail, if you let a drug dosage error thru without proper justification & documentation, it is a drug error.
However, hospitals are more strict in the sense that a drug error has taken place if the pt did not receive a drug within a particular time frame - again...the right drug to the right pt @ the right time.
When I work retail, I'm also in a tremendously supportive environment & they also publish common errors quarterly. It is an educational tool to try to change behavior & minimize the possibillty of errors.
Just this week, someone had put Lexapro on the fast mover shelf - it just so happened it was smack dab next to Lipitor. Well - I don't care how many depressed pts we have - that goes back on the shelf. The chances of mixing those two up is way too great - bottles are similar (at fast glance), strengths are similar. Just not worth it!
Personally, most of my own errors are caught before reacing patients, but some have. Since I supervise pharmacists, I always think before reacting that I could be that person, but for the grace of God (or having lunch, taking a day off, etc...) & I try to help the individual think back to what circumstances caused them to be less careful than they are normally.
There is no "normal". You strive for none, but you will have some. Just do the very best you can on any given day & find the resources you have available to you at all time - day or night.
Good luck!