User errors are very common for people
with diabetes. The equipment that helps us measure our blood glucose
and manage our diabetes is delicate and deserves our care to function
as intended. Yet, I see people doing the wrong things and wonder why
the readings they receive from their meters are unreliable.
This is not a comprehensive list,
because when I think it might be, I always discover another error or
watch people abuse their testing equipment in a new way. I do wish
people would read the instructions that are contained in the box with
the container of test strips and read the instruction manual that
comes with their meter.
The list of user errors that I have
seen to-date:
#1. Not keeping the test strips in
the container they came in. I have seen people take them out of
purses, wallets, zip-lock bags, and other containers. Some even have
them in tea bags holders or folded paper towels to protect them from
the light, but this is not the correct way to carry them. The
container you receive them in is the only proper container to carry
them in as this container is manufactured to protect them from light
and moisture. If you will be spending the day on the water, then you
may wish to put the container and your testing equipment in a zip-lock bag.
#2. Not carrying the meter in its
case. Using the case that came with the meter is best, but will
not prevent lint and dust from getting in the meter if the case is
left open when not using the meter. Lint and dust are often the
culprits that cause a meter to not read the test strip properly. I
have seen people carry the meter in purses, pockets, and backpacks or
fanny packs and not in the intended carrying case. I have even
watched people search through their purses, backpacks, and other
places for the different parts to the lancet device while dust was
blowing onto their meter. One of our support group members commented
about people handling their test strips and meters with wet hands
after getting out of the swimming pool to test their blood glucose
levels. If you want accuracy in testing, this
is not a good practice.
#3. Keeping the container of test
strips and meters on the car dashboard, in the car glove box, or even
the seat of the car in the summer or winter. This delicate
equipment has temperature guidelines for storage and use. Baking
them in the car or freezing them will not produce accurate test
results. Yet this seems to be a favorite place for people to carry
them.
#4. Using test strips in direct
sunlight. This is a big no no, but I see people do this quite
frequently. Not too many days ago, my wife and I were in a
restaurant, and a couple was sitting in the sunlight. I watched the
wife take her meter out of the purse and sit it in direct sunlight,
then dump out a few test strips, pick one up, and insert in her
meter. Then she needed to hunt up the parts of the lancing device
from her handbag, assemble it, and then prick her finger and wick the
blood into the test strip. I could see her pull out the test strip,
insert another from the pile on the table, and repeat the process.
This happened two more times before she gave up. The first error was
not having the lancet device ready for use. Then she should have
only taken one strip from the container and kept the meter and
inserted test strip behind something to prevent the direct sun from
shining on it while pricking her finger.
#5. Most people do not take time to
read the instructions that come in the box with the test strip
container. I admit I did this for a few years until instructions
started to change. Until about four years ago, instructions seldom
changed. Now they change at least once a year if not more often.
Maybe not much of a change, but changes nonetheless. Some have been
important, such as the change from using alcohol pads to wipe the
finger to using warm water and soap to clean your fingers and then drying your hands thoroughly.
#6. Many people are not aware of
using the second drop of blood or when this should be used.
Read my blog here for when to use the second drop of blood.
We as patients can make many more
errors in testing our blood glucose levels. For the errors David
Mendosa covers, read
his blog here. David has a better grasp of some
of the mistakes we can make when we don't respect the delicate
equipment we have to use.
I have also written other blogs about
errors we make. The first is about the importance in hand washing
that is
here and the second is about the needless ways we find to
waste test strips and this blog is
here.
For those that have problems getting a
single test strip out of the container, my suggestion is obtaining a
plastic tweezers for use. I have two that I use when I open a new
container. I have taken both and glued a quarter of an inch length
of a three eighth inch wide rubber band on the outside of the tip of
one side of the tweezers and then wrap it slightly around the tip. The second tip as a quarter in of a thin rubber band glued to the inside of the tip.
To pull out a test strip, I insert outside of the first part into the container very
carefully and once I have it far enough in to pull out a test strip.
I have the container tilted enough to pull one strip out and then
when it is far enough out to rotate the tweezers to grasp with both
tips, I lightly squeeze and extract the test strip. Still holding
the test strip with the tweezers, I set the container down and close
the lid. Then I grasp the test strip with my fingers and set the
tweezers down. I then pick up the meter and carefully insert the
test strip in the slot in the meter.
Granted, this did take some practice to
do this without damaging a test strip. It is better than dumping a
few test strips out and then risk damaging them when putting them
back into the container. I don't know that the manufacturers of the
test strips would approve of this, but it works for me. Never, I
repeat, never use a metal tweezers. The metal will damage the test
strip and some have been magnetized and this will damage the test
strip.
And with many of the errors I witness,
I ask myself why these people are even testing. They create a climate
that wastes test strips and do not receive readings that are
reliable. It is bad enough that there is a built in margin of error,
but to needlessly add more error margin with the mistakes many people
add to the built in error margin really is a waste of money for the
results they receive. If you are using insulin, these errors can create hypoglycemia that you don't want.