The diabetic client is scheduled for a computed tomography (CT) scan with intravenous contrast. What education will the nurse provide? (Select all that apply.)
Hold metformin 24 hours to 48 hours before the CT.
Hold metformin 48 hours after the CT.
Double the metformin dose after the CT.
Take metformin as scheduled the day of the CT.
Resume metformin at half dose after the CT.
Correct Answer : A,B
A) Hold metformin 24 hours to 48 hours before the CT. This is correct because it reduces the chance of metformin accumulating in the blood and causing lactic acidosis when combined with the contrast dye.
B) Hold metformin 48 hours after the CT. This is also correct because it allows time for the contrast dye to be eliminated from the body before resuming metformin.
C) Double the metformin dose after the CT. This is incorrect and dangerous because it can cause hypoglycemia, low blood sugar, which can lead to confusion, seizures, coma, or death. D) Take metformin as scheduled the day of the CT. This is incorrect and risky because it can result in high levels of metformin in the blood when mixed with the contrast dye, increasing the likelihood of lactic acidosis.
E) Resume metformin at half dose after the CT. This is incorrect and unnecessary because there is no evidence that reducing the dose of metformin after a CT scan with contrast dye has any benefit or reduces any harm.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
a) A digoxin level of 1.2 ng/mL is within the therapeutic range, and holding the medication based solely on the level may not be necessary.
b) Seeing yellow-green halos is a symptom of digoxin toxicity, and holding the medication is appropriate to prevent further adverse effects.
c) Edema alone may not be a contraindication for administering digoxin; the nurse would assess other factors such as heart rate and rhythm.
d) Pacing and thirst are not specific signs of digoxin toxicity, and the nurse would need to assess other symptoms and factors before deciding to hold the medication.
Correct Answer is C
Explanation
A) Teaching the client to treat symptoms is not sufficient; proactive monitoring is essential.
B) Continuing the drug despite signs of toxicity is not safe and may worsen the client's condition.
C) Regular monitoring of organ function is crucial to detect early signs of toxicity and prevent serious complications.
D) Discontinuing the drug without signs of toxicity may not be necessary, and the decision should be based on ongoing assessment and consultation with the healthcare provider.
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