A nurse is caring for a client who has deep vein thrombosis.
The client has been receiving IV heparin for the past 5 days and now has a new prescription for oral warfarin in addition to the heparin.
The client asks the nurse if both medications are necessary. Which of the following is an appropriate response by the nurse?
“Both heparin and warfarin work together to dissolve the clots.”.
“I will ask the charge nurse to call your provider and get an explanation.”.
“Heparin enhances the effects of the warfarin.”.
“Heparin will be continued until the warfarin reaches a therapeutic level.”. . .
The Correct Answer is D
Choice A rationale
Neither heparin nor warfarin work to dissolve clots that have already formed. Instead, they work by reducing the blood’s ability to clot, preventing the formation of new clots and the growth of existing ones.
Choice B rationale
While it’s important for healthcare providers to communicate and explain treatments, it’s not necessary for the charge nurse to call the provider for an explanation in this case. The nurse should be able to explain the rationale for the medication regimen.
Choice C rationale
Heparin does not enhance the effects of warfarin. Both are anticoagulants, but they work in different ways and do not enhance each other’s effects.
Choice D rationale
Heparin will be continued until the warfarin reaches a therapeutic level. Heparin and warfarin are both anticoagulants that decrease the clotting ability of the blood and help prevent harmful clots from forming in the blood vessels. However, they work in different ways to achieve therapeutic coagulation and must be given together until therapeutic levels of anticoagulation can be achieved by warfarin alone, which usually takes about 3 days.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
The correct answer is B. 10 units of Humulin R insulin in a 500-unit insulin syringe.
Choice A rationale: This choice is incorrect because a 100-unit syringe would not be able to hold enough U-500 insulin (5 times more concentrated) to deliver the prescribed 10 units. Using a 100-unit syringe could lead to an inaccurate dose.
Choice B rationale: This choice is correct. U-500 Humulin R insulin is a concentrated form containing 5 times more insulin per milliliter compared to U-100 insulin. Therefore, a 500-unit syringe is appropriate to measure the prescribed 10 units accurately.
Choice C rationale: This choice is incorrect. A 30-unit syringe would not have the capacity to hold even the 10 units of U-500 insulin. It would be impossible to draw up the correct dose with this syringe size.
Choice D rationale: This choice is incorrect. Similar to choice A, a 50-unit syringe is not suitable for U-500 insulin due to its limited capacity. It would lead to an inaccurate measurement of the 10-unit dose.
Correct Answer is C
Explanation
Choice A rationale
Barbiturates are a class of drugs primarily used as sedatives and anesthetics. They are not typically used in the treatment of depression or anxiety disorders.
Choice B rationale
Rebound insomnia is a term used to describe a condition where a person experiences insomnia as a withdrawal symptom after discontinuing use of a sleep aid, particularly those in the benzodiazepine family. It is not a type of medication used to treat depression or anxiety disorders.
Choice C rationale
Antidepressants are indeed used for the treatment of depression and a range of anxiety disorders including panic, social phobia, and post-traumatic stress disorder. They work by increasing the levels of certain chemicals in the brain, such as serotonin, norepinephrine, and dopamine, which are involved in mood regulation.
Choice D rationale
Anxiolytics are a class of medications used to treat anxiety disorders. However, they are not typically used to treat depression.
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