A nurse is reinforcing teaching about HbA1c with a client who has type 1 diabetes mellitus.
Which of the following information should the nurse include?
An HbA1c value greater than 8% indicates diabetic control of blood sugar.
The HbA1c value is altered by eating habits the day before the test.
The HbA1c value determines long-term blood glucose control for the past 120 days.
An HbA1c test is performed once per year.
The Correct Answer is C
The HbA1c value determines long-term blood glucose control for the past 120 days. This is because the HbA1c test measures what percentage of hemoglobin proteins in your blood are coated with sugar (glycated). Hemoglobin proteins in red blood cells live for around 120 days, so the test reflects your average blood sugar level for the past two to three months.
Choice A is wrong because an HbA1c value greater than 8% indicates poor diabetic control of blood sugar. The HbA1c target for most people with type 1 diabetes is 48 mmol/mol (or 6.5%) or lower.
Choice B is wrong because the HbA1c value is not altered by eating habits the day before the test. The test does not require fasting and can be done at any time of the day.
Choice D is wrong because an HbA1c test should be performed more than once per year.
The frequency of the test depends on the type of diabetes, your treatment plan and your blood sugar level. For example, you may need the test twice a year if you have good blood sugar control, or four times a year if you take insulin or have trouble keeping your blood sugar level within your target range.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Insulin lispro was administered to a client immediately before bed. This is a situation that requires the completion of an incident report because insulin lispro is a rapid-acting insulin that should be given within 15 minutes before or after a meal. Giving it immediately before bed can cause hypoglycemia (low blood sugar) during the night, which can be dangerous for the client.
Choice A is wrong because nitroglycerin transdermal is a medication used to prevent angina (chest pain) and can be applied to a client’s chest as prescribed.
Choice B is wrong because cefotaxime is an antibiotic that can be administered to a client after obtaining blood cultures to treat an infection.
Choice C is wrong because digoxin is a medication used to treat heart failure and atrial fibrillation and can be administered to a client who has a heart rate of 64/min, which is within the normal range of 60 to 100 beats per minute.
Correct Answer is C
Explanation
Clean the cannula prongs daily.

This is because the nasal cannula can become contaminated with bacteria and mucus, which can cause infection and irritation of the nasal mucosa. Cleaning the cannula prongs daily with soap and water can prevent these complications.
Choice A is wrong because humidifiers can help moisten the dry oxygen and prevent nasal dryness and bleeding. Humidifiers should be used for oxygen flow rates higher than 4 L/min.
Choice B is wrong because the cannula prongs should be positioned curving downward in the nose, not upward. This allows for better alignment with the natural direction of airflow and reduces the risk of dislodgement.
Choice D is wrong because keeping the oxygen tubing off the floor is not a specific action for nasal cannula use. It is a general safety measure to prevent tripping and contamination of the tubing.
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