The nurse admits a client who has uncontrolled diabetes mellitus. Which clinical indicator does the nurse review to confirm the admitting diagnosis before planning nursing care?
1. Fasting glucose 124 mg/dL
2. Bedtime glucose 180 mg/dL
3. Glycosylated hemoglobin 6%
4. Postprandial glucose 150 mg/dL
1
1 and 4. The nurse confirms a fasting blood glucose greater than 120 mg/dL for the client with diabetes mellitus to confirm the presence of the disease. The blood test is important because the blood specimen was obtained after a period of fasting; the blood glucose is worthless as a diagnostic tool if the specimen is withdrawn post-prandial.
2. A blood glucose sample taken before bedtime is a random sample.
3. The glycosylated hemoglobin for a client with uncontrolled diabetes mellitus should be greater than 7% because it reflects the percentage of time the hemoglobin becomes saturated with glucose during hyperglycemia.
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