A diabetic client who is currently taking metformin is ordered a computerized tomography (CT) scan with contrast. The nurse understands that the client's metformin should be discontinued how many hours before receiving intravenous (IV) contrast?

24 hours

12 hours

6 hours

48 hours

Answer and Explanation

The Correct Answer is B

A. Discontinuing metformin 24 hours before a CT scan is longer than necessary and not standard practice.
B. It is generally recommended that metformin be held for at least 12 hours before the administration of IV contrast to reduce the risk of lactic acidosis, especially in clients with renal impairment.
C. Six hours is insufficient time to ensure the medication is cleared from the system, considering the potential risks.
D. Discontinuing metformin for 48 hours is overly cautious and not necessary unless there are complications that arise after the contrast is administered.

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Correct Answer is C

Explanation

A. LABAs can help prevent asthma attacks, including those triggered by exercise, so this statement is accurate and does not indicate a need for further education.
B. LABAs may cause side effects like an increased heart rate, which the client correctly recognizes.
C. LABAs are not intended for immediate relief of asthma symptoms; they are for long-term control. A short-acting beta2-agonist (SABA) should be used for acute symptoms, indicating this client needs further education.
D. Over time, tolerance can develop with some medications, and this understanding is accurate, so it does not indicate a need for additional teaching.

A. Inducing labor in full-term gestation clients B. Preventing contractions in pre-term clients C. Prevention of pregnancy D. Increase the amounts of eggs produced during ovulation

Correct Answer is A

Explanation

A. Oxytocin is primarily used to induce or augment labor in full-term clients, making this the correct statement regarding its expected outcome.
B. Oxytocin is not used to prevent contractions; it is used to stimulate them, especially during labor.
C. Oxytocin is not a contraceptive; it does not prevent pregnancy but is used in labor management.
D. Oxytocin does not influence egg production; it primarily affects uterine contractions and milk ejection in breastfeeding.

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A diabetic client who is currently taking metformin is ordered a computerized tomography (CT) scan with contrast. The nurse understands that the client's metformin should be discontinued how many hours before receiving intravenous (IV) contrast?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A client's severe asthma has necessitated the use of a long-acting beta2-agonist (LABA). Which of the client's statements suggests a need for further education?

Correct Answer is C

Explanation

The nurse is caring for a patient who is currently receiving oxytocin (Pitocin). What will the nurse anticipate as an expected outcome of this medication?

Correct Answer is A

Explanation

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