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Capillary Blood Glucose
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Transcript
Capillary Blood Glucose
CBG
CBG
- CBG= Capillary Blood Glucose
- Test utilizes a small drop of capillary blood to measure glucose (simple sugar) levels
- Test is simple and quick
What is a CBG?
Who needs?
Who needs a CBG?
- Monitoring blood glucose is essential for the management of diabetes.
- Primarily used for type I & type II diabetes and gestational diabetes.
Test Results
- CBG is measured in milligrams per deciliter
- Adult normal ranges:
- Fasting: Less than 100
- Postprandial (2 hours after meal): Between 65-139
Test Results
Interventions
Interventions
- CBG too low:
- Retest to confirm result
- If patient (pt) is symptomatic, treat pt
- Provide pt juice, followed by protein
- Administer D50 (Dextrose 50%) intravenously
- Retest after intervention
- Assess if further action required or if intervention was effective
- CBG too high:
- Retest to confirm result
- Administer insulin per doctor order utilizing an insulin sliding scale (will discuss in future class)
- Retest after intervention
Always notify provider of patient status. Above are just examples; always follow your facility protocol.
Supplies
- Alcohol swab
- Cotton ball or 2x2 gauze
- Lancet device
- Blood glucose meter
- Blood glucose test strips
- Clean gloves
- Paper towel
Supplies
Supplies Samples
Samples of Supplies
Alcohol pad
Exam Gloves
Cotton Ball or 2x2 Gauze
Lancet Device
Glucometer
Test Strips
Steps of Taking a CBG
Process
- Perform hand hygiene and apply clean gloves.
- Identify patient using at least two identifiers (name, DOB).
- Assess allergies and reactions.
- Assess the patients understanding of procedure and purpose of glucose monitoring.
- Determine if risks exist for performing skin puncture (e.g. low blood platelets, anticoagulant therapy, bleeding disorders).
- Assess area of skin to be used as puncture site. Avoid using areas of bruising or open lesions.
- Use lateral side of finger.
- Wipe finger with alcohol swab; allow to completely dry.
- Puncture site with lancet and dispose in sharps container.
- Hold finger in dependent position .
- Do not milk or massage finger site.
- May have to gently squeeze the finger to form a drop of blood.
- Wipe away first drop of blood with cotton ball.
- Bring test strip to sample and allow to wick.
- Apply pressure with cotton ball to puncture site.
- Remove strip and dispose in proper receptacles.
- Remove gloves and perform hand hygiene.
- Review result with patient.
- Disinfect equipment after each use with patient..
- Document result in patient chart or electronic medical record (EMR).
Frequency
Frequency
- Always verify the doctor's order for frequency
- Examples of CBG check frequency are:
- Before meals (AC) and at bedtime (HS).
- Postprandial (2 hours after meals)
- Every 2 hours
Quality Check (QC)
- QC is performed to ensure that the equipment is calibrated.
- QC is usually performed:
- Every shift
- When device is dropped
Quality Check
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