Hemoglobin Testing
with Hemocue
Quick Procedure for Daily
Reference
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Note: This is a
abbreviated version of the complete procedure which is described in full detail
in the Hemoglobin Testing with Hemocue Analyzer Procedure in the Clinical
Nursing Practice Manual. This does not supercede the full procedure but is
intended to be a practical day-to-day quick reference. View
the full Nursing Policy here.
Specimen Collection
Instructions:
- Obtain the sample by
fingerstick as described in the Clinical Nursing Practice Manual. Cleanse
and lance the finger and lightly press the finger using a rocking motion to
stimulate blood flow. Wipe off the first two drops of blood before
collecting into the cuvette.
- The blood is collected
directly into the testing cuvette. Fill the cuvette in one continuous
process. If the cuvette is not completely filled with one drop of
blood, get a new cuvette and start over to properly fill in one process.
Do not put the same cuvette back to the sample.
- Venous blood and arterial
blood may be used with the cuvettes filled from a syringe.
Testing:
- Wipe off any excess blood
from the outside of the cuvette but do not touch the open end of the
cuvette. Wipe the two flat sides
with a downward motion.
- Check for the presence of air bubbles or for
inadequate filling of the cuvette. Get a new sample if either condition is
found.
- Place into the analyzer
immediately but at least within 10 minutes of sampling. Place the filled
cuvette into the holder and push the holder to the measuring
position. The results will appear
in approximately 15-60 seconds.
- Record the results. Write
your name, the date and time and the findings on the patient’s
chart. Even though the results are stored in the instrument, you must follow this procedure.
- Discard the cuvette in the
appropriate waste container and discard the lancet in the sharps
container.
Quality control:
- Maintain the proper
storage conditions, keeping the cuvettes tightly closed and at room
temperature.
- Date the vial of cuvettes
on opening. The cuvettes are good for 90 days once opened.
- Blood controls must be
dated when opened and can be stored at Room Temperature or in the
refrigerator. They are good for 30 days from the open date. Bring the
controls to room temperature before use and be sure to mix them well
before testing.
- Run the low and high
controls daily. Both levels must pass before patient testing can be
performed. The instrument will lock
out patient testing if the quality control does not pass within the
acceptable limits.
- All discrepancies in the QC must be documented using the Comment
input button.
- The QC activities are downloaded and recorded in the data
management system.
DO NOT TURN OFF
THE HEMOCUE WHEN REDOCKING THE ANALYZER.
TO ACTIVATE THE INSTRUMENT, SIMPLY TOUCH THE SCREEN.
Revised 5/25/07