A client is scheduled to undergo the glucose tolerance test for gestational diabetes screening.
The nurse provides instructions to the client.
Which statement by the client indicates an understanding of the procedure?
"I should avoid any high-sugar foods for a week before the test.".
"I can drink water during the test to stay hydrated.".
"I need to fast for 12 hours before the test.".
"I should avoid physical activity on the day of the test.".
The Correct Answer is B
The correct answer is choice B. “I can drink water during the test to stay hydrated.” This statement indicates an understanding of the procedure because water does not affect the blood glucose level and can help prevent dehydration during the test.
Choice A is wrong because “I should avoid any high-sugar foods for a week before the test.” This statement is incorrect because the client only needs to avoid eating or drinking anything except water for at least eight hours before the test.
Avoiding high-sugar foods for a week before the test is unnecessary and may alter the results.
Choice C is wrong because “I need to fast for 12 hours before the test.” This statement is incorrect because the client only needs to fast for eight hours before the test.
Fasting for longer than eight hours may cause hypoglycemia (low blood sugar) or ketosis (high levels of ketones in the blood).
Choice D is wrong because “I should avoid physical activity on the day of the test.” This statement is incorrect because moderate physical activity does not affect the blood glucose level and may help reduce stress during the test.
However, strenuous exercise should be avoided as it may lower the blood glucose level too much.
Normal ranges for blood glucose levels during the glucose tolerance test are:
• Fasting: less than 5.3 mmol/L (95 mg/dL)
• One hour: less than 10.0 mmol/L (180 mg/dL)
• Two hours: less than 8.6 mmol/L (155 mg/dL)
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
The correct answer is choice D.“I will be required to stay in the clinic for several hours during the test.” This statement indicates a need for further clarification because the glucose tolerance test for a pregnant client usually takes 1 hour, not several hours.The client should be informed that she will need to have blood drawn at fasting and 1 hour after drinking the sugary drink.
Choice A is wrong because it is correct that the client should not eat or drink anything after midnight before the test.
Choice B is wrong because it is correct that the client will need to have blood drawn at fasting and after drinking the sugary drink.
Choice C is wrong because it is correct that the sugary drink may taste sweet and cause some temporary discomfort.
The normal range for blood glucose level after a 1-hour glucose tolerance test is less than 140 mg/dL.A blood glucose level of 130 to 140 mg/dL is considered a positive screening and requires a 3-hour glucose tolerance test to confirm gestational diabetes mellitus.
Correct Answer is C
Explanation
The correct answer is choice C. Fasting: 90 mg/dL, 1 hour: 185 mg/dL, 2 hours: 160 mg/dL.
This is because these blood sugar levels exceed the normal ranges for a pregnant woman undergoing a screening test for gestational diabetes.
The normal ranges are:
• Fasting: less than 95 mg/dL
• 1 hour: less than 180 mg/dL
• 2 hours: less than 155 mg/dL
Choice A is wrong because these blood sugar levels are within the normal ranges.
Choice B is wrong because only the fasting blood sugar level is slightly above the normal range, but not enough to confirm a diagnosis of gestational diabetes.
Choice D is wrong because only the 1 hour and 2 hours blood sugar levels are slightly above the normal ranges, but not enough to confirm a diagnosis of gestational diabetes.
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