The nurse has administered warfarin 2.5 mg orally daily for three days to a client who has deep vein thrombosis. The client's International Normalized Ratio (INR) today is 5.0. The nurse notifies the healthcare provider because today's dose of the medication should be:
Switched to heparin.
Given as prescribed.
Increased.
Held.
The Correct Answer is A
Choice A Reason:
Switching to heparin is not the standard response for a high INR. Heparin may be used in conjunction with warfarin when starting anticoagulation therapy, but it is not typically used as a substitute in response to an elevated INR.
Choice B Reason:
Giving the dose as prescribed would not be appropriate when the INR is significantly above the therapeutic range. Continuing the same dose could increase the risk of bleeding complications.
Choice C Reason:
Increasing the dose would be contraindicated as the INR is already too high. Increasing the warfarin dose would further elevate the INR and increase the risk of bleeding.
Choice D Reason:
Holding the dose is the correct action when the INR is significantly above the therapeutic range, which is generally between 2.0 to 3.0 for most indications. The healthcare provider should be notified, and the warfarin dose should be held until the INR returns to the therapeutic range. Vitamin K may also be administered to help lower the INR more quickly if necessary.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A Reason:
Dantrolene is used in the management of malignant hyperthermia, a life-threatening complication characterized by muscle rigidity and elevated temperature, often triggered by certain anesthetics. The patient's symptoms of muscle rigidity and brown urine, which may indicate myoglobinuria, along with elevated temperature and heart rate, are suggestive of this condition. Dantrolene acts by reducing calcium release from the sarcoplasmic reticulum of skeletal muscle, thereby reducing muscle contraction and metabolic demand.
Choice B Reason:
Metoprolol, a beta-blocker, is not the first-line treatment for symptoms suggestive of malignant hyperthermia. While it can reduce heart rate and blood pressure, it does not address the underlying pathophysiology of malignant hyperthermia and is not indicated in this scenario.
Choice C Reason:
Increasing the rate of lactated Ringer's solution is not the primary intervention for malignant hyperthermia. While maintaining hydration is important, it does not directly counteract the pathophysiological processes at play in malignant hyperthermia.
Choice D Reason:
While liver function tests can be important in assessing overall organ function post-operatively, they are not the immediate priority in a suspected case of malignant hyperthermia. The priority is to treat the acute and life-threatening symptoms first.
Correct Answer is A
Explanation
Choice A reason:
Providing information about available community resources is crucial for ongoing support and assistance. These resources can offer counseling, medical follow-up, legal advice, and other services that may be needed after such a traumatic event. Community resources play a vital role in the recovery process, offering a network of support and specialized services tailored to the needs of sexual assault survivors.
Choice B reason:
While it is important to know when to return to the ED for follow-up care, this is typically not the primary content of discharge instructions. Follow-up care is usually managed by primary care providers or specialists rather than the ED unless there are specific complications or concerns that need to be addressed immediately.
Choice C reason:
The names and phone numbers of local attorneys may be provided, but this is not standard for all discharge instructions. Legal support is important, but the immediate focus post-discharge is often on the survivor's physical and emotional well-being. Attorneys specializing in defending rape victims can be a part of the community resources provided to the survivor.
Choice D reason:
The phone number of a battered women's shelter or safe house may be included in discharge instructions, especially if there is an immediate need for safe accommodation. However, this is not the only resource that should be provided, and it is not specific to all cases of sexual assault.
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