Blood Glucose Testing Flashcards
Meters with whole blood results are __% lower than plasma lab values
11-15%
ADA recommends an error of __% or less for blood glucose levels between 30-400 mg/dL, 100% of the time
10
Meter accuracy should be tested with:
- Against lab values
- Fasting plasma glucose lab test
- Use the fingertip for the meter, not venous sample
- Venous sample should be spun within 30 minutes of collection
Most common source of user error in SMBG is _________.
Failure to obtain an adequate sample size
Causes of blood glucose high after meals
Too much carbs at meal
Not enough pre meal insulin
Inadequate oral agent (except metformin)
Not enough exercise in days or hours before
Causes for elevated fasting blood glucose
Not enough basal insulin
Inadequate oral med at bedtime
Blood glucose high most of the time is due to:
Insufficient meds Patient needs combo therapy Medication not taken long enough to see effect Not enough exercise Too many carbs Excess stress
Erratic blood glucose may be due to:
Inconsistent meals (carbs) or timing
Irregular insulin injection technique
Insulin lost potency
Excess stress
ADA target FASTING blood glucose goals from self-monitoring for
90-130 mg/dl
ADA target POSTPRANDIAL blood glucose goals from self-monitoring for
Less than 180 mg/dl
General target for A1C
7% or less
Blood glucose targets for ages 0-6
100-180 mg/dl before meals
110-120 bedtime
A1C 7.5-8.5%
Blood glucose targets for ages 6-12
90-180 mg/dl before meals
100-180 mg/dl bedtime
A1C <8%
Blood glucose targets for ages 13-19
90-130 mg/dl before meals
90-150 mg/dl bedtime
A1C <7.5%
Glucose targets for elderly
Leave at 7% or less, Consider lenient targets if impared functional status, poor social support, cognitive decline, hypoglycemic awareness, decreased life expectency, or isolated living situation.
