repeat POCT glucose testing.

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Our hospital uses the roche ACCU-CHEJ Inform II meters.
Our procedure(which I inherited from my predecesor) is that all critical values must be repeated and confirmed by a STAT laboratory glucose.
The other part of the procedure is that if a POCT glucose is repeated for ANY reason, the results must agree within 10% or be confirmed with a lab draw.
The issue that comes up is sometimes my report that looks for repeats will catch results run around 10(maybe even 15?) minutes apart and count them as repeats. In these cases it’s normally a patient who was given more insulin or dextrose and so the nurse is expecting a change.  So I’m looking at changing the procedure to include a specific time frame of what is considered a repeat . 
However I’m not sure when/why specifically this part of the procedure was added in the first place.
Do any of you have a similar procedure? How long between runs would you consider a “repeat” vs a new event?

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We also use the AccuChek Inform II meters and RALS as our DM system. Our repeats flag if they are run within 5 minutes of each other. I was told that tests run within 5 minutes will not be reimbursed, so I believe that is why it was set that way. I'd be interested to know if anyone else knows that for a fact? (I also inherited the procedure!) The policy recommends RNs retest a hypoglycemic result 15 minutes after treatment per their Hypoglycemia Protocol.

Good call on updating your procedure. I don't use the ACCU-CHEJ, but I would only use limits that the manufacturer has stated or items from hospital policy in a procedure.  Repeats for our purposes are defined as within 10 minutes. 

Erika

Word of caution - this becomes a slippery slope, and I'll share why.  As most of us have a lab background, we are focused on what is a "reportable" result before we release it - a single result.  When testing is performed at point-of-care that model is imperfect, because we are not present during the testing, and each time the patient is tested, it is in fact a different sample, rather than a single, stable sample as we have in the lab.  Point being, you may want to err on the side of caution when it comes to manipulating results after the clinical staff have already had access to, and treated the patient based on.  Put another way, we can "guess" what is logically to be considered a repeat based on timing, but the truth is we were not there at the time and don't know what all was done.
  Years ago (>15 years), we also had a repeat protocol in place, where the second result was deleted or held based on a % or mg/dl match and a time window.  I then learned of a legal case where the hospital was faulted for having deleted a result from the hospital medical record as a result of an interface repeat protocol, when in fact the patient was treated based on that result, but it was not part of the formal record, as the operator intended.  We then went to releasing all tests POC glucose tests performed and dropped the interface rule.  We do have a means whereby the operator can flag a result as unsuitable for charting based on their assessment, but then the responsibility is at least on someone that was present during the testing and can speak to what was done.

Thank you for all of this! 

Right now- all of the results, whether they are repeats or not, are all uploaded to the chart- I don’t remove any of the results from the chart, I just check that a lab confirmation was also run.
So I believe that covers us for the potential legal issue James brought up. 
With that being the case, it’s just a question of when a lab confirmation is required in regards to “repeat” testing based on the time between tests if they’re >10% different

Following....are there facilities that don't repeat glucoses at all?
Manufact. insert says to follow your hospital policy...and to  repeat the test if you get "Lo" or "Hi" for Nova Stat Strips.  Our facility procedure states to repeat all critical values within a 10 minute timeframe and that if you get a "Hi" (>600) you would have to draw a stat glucose and send to the lab within 15 minutes.   All results are uploaded to the chart.  I wish there was a way to simplify this for the nursing staff.

Can you tell me how those that have the AccuChek are handling the use with the critically ill?  Our process has been that once they are deemed critically ill they must send it to the lab.  What we have found on the onset of getting a vasopressor they perform one on the AccuChek but send one to the lab at the same time. Then the rest are sent to the lab. We were cited for this process and I am curious how other hospitals avoid this.

Hello
Analyzer: Nova StatStrip glucometers  Middleware:  RALS
I too am working on updating our glucometer policy specifically repeating high glucoses on the meter AND requiring a lab draw.
  •  No lab draw or repeat glucometer for critical low results <40mg/dL - as it's a treat and repeat (fingerstick) within 15 minutes.  This was changed a few years ago based on ADA guidelines.
  • Results >400mg/dL technically should be repeated via fingerstick (this is where I'm trying to make changes)  are verified by a lab draw or declined by provider (must be charted). 
  • Results greater than linearity >550 absolutely require a lab draw.
  •  All critical low results and high results are reviewed daily for acceptability and appropriate follow-up.  
  • If results are repeated by the glucometer we use the CAP WBGQ evaluation values of 12.5% or 12 mg/dL which is tighter than the meters stated accuracy. 
  • RALS middleware is designed to take the second result if performed within 5 minutes of the initial result.  If the result isn't consistent with the patient's condition there is a comment that holds the result for follow-up. (I review all of these in real time)
  • I also follow-up on all repeats that fail the CAP guidelines.

 Most glucometer makers have precision and accuracy values that can be utilized so the repeatability values aren't an arbitrary number or percentage.  10% seems really tight.
To: Janet Royal - We came up with policies/procedures based on a combination of nursing (TJC), laboratory (CAP-CLIA), current ADA guidelines, and hospitalist input - Group meets formally once a month to discuss all things Diabetes - Diabetes Champions!
Good Luck...

This subject has recently come up in our POC group.  We send all results to the chart.  However, I question the timing of repeats.  POC staff audits but we have no idea what happened between repeats.  We are talking about the necessity of repeats.  We do not have a requirement for a lab draw after a critical as that lengthens the time and is 2 different samples. Not like lab where you repeat on same sample.  We also have a flag for results that the operator finds is unsuitable for charting.
All that being said, is there a real reason for repeats?  Is it that we don't trust the staff performing the test or we don't trust the glucose meters.  What do you all think?  Does the lab repeat all criticals? 

We currently have the Accuchek Inform II meters but will be switching to Nova hopefully by the end of the year.  

Our current practice for glucose testing: 
  • We do not require repeat testing.  We suggest repeat testing if result doesn't match patient condition.
  • We do require a comment for any glucose test repeated within 15 minutes and 20% difference.  
  • We pull a report daily of repeat results.  If they don't have appropriate comment, we put even in our reporting system.  We also credit one of those results for billing purposes, but the result stays in the patient's chart. 
  • We require a lab draw within 30 mins for any result >500 since anything above that gives a RRHI result.  They do not need to send lab if patient is on DKA or Hyperglycemic protocol.  In these circumstances they will enter appropriate comment stating they are on protocol. 
  • We print a report daily of the >500 results and if no comment, we check for lab draw.  If no lab draw, we enter an event in our reporting system.  
  • We do not have critical values for our glucose meters. 

I too inherited the procedures.  I was hoping with the switch to Nova to change the process and remove any required comments.  I want to change procedure to just suggest repeating if result doesn't match patients condition, but not require comment.  And to also not require a blood draw for any results above or below the reportable range of meter but only suggest that they send to the lab.  I feel like they are with the patient and they should follow whatever protocol they have for patient.  We always tell them that the lab is the backup and if they ever question a result they should send sample there.  

If I make the changes, we would only require a comment for failed QC.  

For Nova, do they have to repeat of they receive a result lower or above reportable range?   I don't see that information in the Information for Use Manual.  

Nova doesn't require repeats unless it reads "lo" or "hi" (out of its reportable range).  I feel like maybe we need to rethink our reasons for doing repeats as Sherilyn stated above.  

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