A nurse in an emergency department is preparing to administer theophylline by continuous intravenous (IV) infusion to a client who is experiencing an asthma attack. Which of the following actions should the nurse take?
Infuse the medication at 35 mg/min.
Infuse the medication with an IV pump.
Administer a test dose first.
Cover the IV container with dark paper.
The Correct Answer is B
Theophylline has a narrow therapeutic window which increase the risk of overdose and toxicity. It is also given at very small doses which could be difficult for the nursing staff to accurately titrate the drops and hence requires an infusion pump
A. Infusion of theophylline loading dose should not exceed 25mg/min due to risk of seizures and cardiac arrhythmias
C. Use of a test dose is not necessary as the risk of hypersensitivity with theophylline is very low.
D. Covering the IV container with dark paper is not necessary for the administration of theophylline.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Cimetidine inhibits the cytochrome enzymes leading to increased blood concentration of other drugs like theophylline hence increased risk of toxicity. The dosage of the drugs should be lowered when one is on cimetidine.
A-Cimetidine should be taken with meals or at bedtime for more effective absorption and optimal therapeutic effect.
B. There is no specific duration mentioned for the treatment of duodenal ulcer with cimetidine.
D. Taking cimetidine with an antacid is not recommended as they decrease the absorption of cimetidine.
Correct Answer is C
Explanation
Zidovudine (AZT) is an antiretroviral drug used in treatment of HIV to suppress viral replication. It causes aplastic anemia, suppression of the bone marrow, leasing to reduces production of all hematopoietic cell lines including red blood cells, white blood cells, and platelets.
A, B, and D - are not associated with Zidovudine use
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