30 Questions
What is the purpose of a continuous glucose monitoring (CGM) system?
To monitor blood glucose levels in real time
How often are sensors replaced in a CGM system?
Every 7 to 14 days
What is the measure of glucose control for the past 3 months?
Glycated hemoglobin (HgbA1C)
What does elevated glycated hemoglobin levels indicate?
Consistently high blood glucose values
What do ketones in the urine signal for individuals with type 1 diabetes?
Deficiency of insulin and deteriorating diabetes control
What is the target range for glycated hemoglobin levels in people with diabetes?
Less than 7%
When should urine ketone testing be performed for individuals with type 1 diabetes?
During illness and persistently elevated blood glucose levels
What is the purpose of an insulin pump in relation to a continuous glucose monitoring (CGM) system?
It can be used with or without the insulin pump
What is the lifespan of an individual red blood cell, approximately?
120 days
What is the main function of a sensor in a continuous glucose monitoring (CGM) system?
To measure glucose levels and transmit data to a monitoring device
What is SMBG?
A method of capillary blood glucose testing
When is it recommended for SMBG to occur?
Before meals, snacks, and exercise
What does SMBG enable people with diabetes to do?
Individualize their treatment regimen
What role does SMBG play in diabetes management?
Detection and prevention of hypoglycemia and hyperglycemia
What is the purpose of obtaining a drop of blood from the fingertip in SMBG?
To apply the blood to a special reagent strip
What does the meter provide in SMBG?
A digital readout of the blood glucose value
What features and benefits do the meters available for SMBG offer?
Monthly averages, tracking of events such as exercise and food consumption, and downloading capacity
What is the recommended time for the blood to stay on the strip in SMBG?
5 to 30 seconds
What is the potential benefit of normalizing blood glucose levels through SMBG?
Reducing the risk of long-term diabetic complications
What is the primary purpose of SMBG?
To monitor and manage blood glucose levels
Which type of blood can most blood glucose monitors and test strips calibrate blood glucose readings to?
Plasma values
What role do nurses play in Self-Monitoring of Blood Glucose (SMBG)?
Providing initial education about SMBG techniques and evaluating the techniques of experienced patients
What is recommended for managing self-care for everyone with diabetes?
Self-Monitoring of Blood Glucose (SMBG)
How many times daily is SMBG recommended for most patients requiring insulin?
Two to four times daily
What are common sources of error in SMBG?
Improper application of blood and damage to reagent strips
What do factors affecting SMBG performance include?
All of the above
What are some meters available to check both blood glucose and blood ketone levels?
Meters available for blood glucose and blood ketone levels
What is encouraged for patients to detect patterns and evaluate the need for dosage adjustments?
Keeping a record or logbook of blood glucose levels
What is covered by most insurance companies, Medicare, and Medicaid?
Some or all of the costs of meters and strips
What are available for patients with painful fingertips or those who experience pain with fingersticks?
Special lancing devices
Study Notes
Self-Monitoring of Blood Glucose (SMBG) in Diabetes Management
- Most meters are biosensors that can use blood from alternative test sites, such as the forearm.
- Special lancing devices are available for patients with painful fingertips or those who experience pain with fingersticks.
- Laboratory methods measure plasma glucose, so most blood glucose monitors and test strips calibrate blood glucose readings to plasma values, which are 10% to 15% higher than whole blood glucose values.
- Factors affecting SMBG performance include visual acuity, fine motor coordination, cognitive ability, comfort with technology, and cost.
- Some meters have audio components to assist patients with visual impairments, and there are meters available to check both blood glucose and blood ketone levels.
- Most insurance companies, Medicare, and Medicaid cover some or all of the costs of meters and strips.
- Common sources of error in SMBG include improper application of blood, damage to reagent strips, use of outdated strips, and improper meter cleaning and maintenance.
- Nurses play a crucial role in providing initial education about SMBG techniques and evaluating the techniques of experienced patients.
- SMBG is recommended for managing self-care for everyone with diabetes, especially for intensive insulin therapy regimens and diabetes management during pregnancy.
- For most patients requiring insulin, SMBG is recommended two to four times daily, usually before meals and at bedtime.
- Patients are encouraged to keep a record or logbook of blood glucose levels to detect patterns and to evaluate the need for dosage adjustments.
- Patients using intensive insulin therapy may be instructed in the use of algorithms for changing insulin doses based on patterns of values greater or less than the target range and the amount of carbohydrate to be consumed.
Test your knowledge of Self-Monitoring of Blood Glucose (SMBG) in diabetes management with this informative quiz. Explore topics such as factors affecting SMBG performance, common sources of error, recommended frequency of SMBG for insulin therapy, and the role of nurses in patient education.
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