What is POC glucose and why its obsolete

Measurement of glucose levels in your body is necessary, so you can know either if you are normal, pre-diabetic, or diabetic, or you are at the point of care (POC)

So, what is the point of care glucose? Furthermore, what are the normal measurements of blood glucose? also, what are the methods of measurement? that’s therefore, what we are going to discuss 

What is poc glucose?

Hence, Point of care (POC) for glucose at home or in the hospital is for monitoring patients with diabetes, not to establish a diagnosis of diabetes mellitus.

What is point of care glucose meter?

What is poc glucose

There are POC glucose meters that we can use for self-monitoring of blood glucose that have advantages like:

  • Low sample volume
  • Short turnaround time
  • Availability outside laboratory

however, they have limited use now, but it can be helpful for diabetes in areas located away from any medical facility.

What is the point of care glucose history of use?

Point-of-care glucose devices used widely in acute care facilities since the 1980s.

By the mid-1990s, with the addition of coagulation and blood gases, there were less than 10 tests on point of care (poc) menu.

A survey in 2004 found that 100% of acute care hospitals interviewed were performing POC glucose using POC meters.

Recently, there use is now limited due to the development of laboratory methods which are more accurate in determining blood glucose levels.

Why point of care glucose used now in limitation?

What is poc glucose

After you know what is POC , I think you can guess why they aren’t used as before:

  • We don’t recommend POC in diabetes due to insufficient accuracy, precision, and an inherent sample-dependant flaw of results.
  • On measuring whole blood glucose (as named by POC glucose meters) is nearly 11% lower than plasma glucose.
  • Because of arteriovenous difference postprandially (not in fasting), specific capillary-plasma thresholds have to be used for diagnostic purposes.

A new generation of POC meter

A new generation of POC glucose meter (StatStrip glucose hospital meter, Nova Biomedical) is accurate and reliable for glucose monitoring in various clinical situations.

Which can be used for critically ill patients, but not for fingerstick capillary blood.

Substitutes for POC glucose meter

  • Blood gas analyzer like i-STAT
  • Non-strip blood analyzers like HemoCue or YSI glucose analyzer
  • Laboratory blood glucose measurement which takes around 30-60 minutes.

Contraindications of POC glucose use

Well, you now have a basic idea of what is poc glucose, what about contraindications?:

  • Poor peripheral tissue perfusion
  • Severe dehydration
  • Sepsis
  • Shock
  • Vasopressor
  • Diabetic ketoacidosis (DKA)
  • Non-ketotic hyperosmolar conditions
  • Hypoxemia
  • Severe anemia

These conditions can occur in non-critically ill people, therefore limiting the use of POC glucose does not eliminate the use of POC testing while laboratory testing could be more appropriate.

Conclusion

  • What is poc glucose? well, it’s used for measurement, not for the establishment of the diagnosis.
  • Although POC meter has advantages, it’s still with a limited use nowadays.
  • Poor peripheral perfusion, hypoxia, and severe anemia are relative contraindications for poc glucose meter use.
  • A new generation of poc glucose meter can now be used for critically ill patients.

Sources

https://www.hindawi.com/journals/ije/2013/206309/

http://www.clpmag.com/2013/09/poc-glucose-monitoring-are-we-doing-it-better-2/

gestational diabetes

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