Which medication should the nurse have available to reverse heparin's effects for a client who has thrombophlebitis and is receiving a continuous heparin infusion?
Protamine sulfate.
Deferoxamine.
Sodium polystyrene sulfonate.
Acetylcysteine.
The Correct Answer is A
Protamine sulfate is a medication that can be used to reverse the anticoagulant effects of heparin1.
It is a polycationic protein drug obtained from the sperm of fish and is used to reverse the anticoagulant effect of unfractionated heparin (UFH)2.
Choice B, Deferoxamine, is not the correct answer because it is a medication used to treat iron overload, not to reverse heparin’s effects.
Choice C, Sodium polystyrene sulfonate, is not the correct answer because it is a medication used to treat high levels of potassium in the blood, not to reverse heparin’s effects.
Choice D, Acetylcysteine, is not the correct answer because it is a medication used to treat acetaminophen overdose and to loosen thick mucus in individuals with cystic fibrosis or chronic obstructive pulmonary disease.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
NPH insulin has an onset of action of about 1 to 2 hours, peaks in 4 to 12 hours, and lasts up to 24 hours. Given the administration at 0700, the onset of action would typically occur between 0800 and 0900. Hypoglycemia is most likely to occur during the onset or peak periods due to the insulin's glucose-lowering effect.
Among the options:
- A. 0715: Too early, as NPH insulin's onset is not within 15 minutes.
- B. 0800: Within the onset window (1 hour after administration), making it a plausible time to observe for hypoglycemia.
- C. 0900: Also within the onset window (2 hours after administration), another reasonable time to monitor.
- D. 1000: Slightly beyond the typical onset but still early in the action profile, where hypoglycemia could occur if glucose levels drop.
Since the question asks for the time to observe for hypoglycemia caused by the onset, the earliest time within the onset window is most appropriate. Thus, B. 0800 is the best answer, as it aligns with the start of NPH insulin’s onset period.
Final Answer: B. 0800
Correct Answer is A
Explanation
The nurse should instruct the patient to avoid taking verapamil with grapefruit.
Studies have demonstrated an interaction between verapamil and grapefruit juice, which is likely due to an inhibition of intestinal metabolism resulting in increased oral bioavailability1.
This means that grapefruit can interfere with the enzymes that break down verapamil in your digestive system, potentially leading to dangerous health problems2.
Choices B, C, and D are incorrect because there is no known interaction between verapamil and spinach, broccoli, or carrots.
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