A nurse is reviewing the medical history of a client who asks about the use of warfarin.
The nurse should identify which of the following findings as a contraindication for the administration of this medication?
Recent myocardial infarction.
Recent eye surgery.
Thrombophlebitis.
Breast cancer.
The Correct Answer is B
Choice A rationale:
Recent myocardial infarction is not a contraindication for warfarin administration. Warfarin is often prescribed for patients with a history of myocardial infarction to prevent clot formation and reduce the risk of stroke.
Choice B rationale:
Recent eye surgery is a contraindication for the administration of warfarin. Warfarin can increase the risk of bleeding, which is particularly concerning after eye surgery due to the delicate nature of ocular tissues. Using anticoagulants in this scenario can lead to severe complications, including vision loss.
Choice C rationale:
Thrombophlebitis, inflammation of a vein with clot formation, is not a contraindication for warfarin administration. In fact, anticoagulants like warfarin are commonly prescribed to prevent the extension of clots and reduce the risk of complications associated with thrombophlebitis.
Choice D rationale:
Breast cancer is not a direct contraindication for warfarin administration. However, the decision to use anticoagulants in patients with a history of breast cancer should be made carefully, considering individual factors such as the stage of cancer, ongoing treatment, and overall risk of thromboembolic events.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","E"]
Explanation
Choice A rationale:
Contractures are a risk for this client due to the lack of movement and constant positioning on one side. Contractures occur when the muscles, tendons, or ligaments shorten and tighten, limiting range of motion and flexibility. This can be a result of prolonged immobility or lack of use of the muscles.
Choice B rationale:
Calcium resorption is not a risk for this client. Calcium resorption refers to the process where bone tissue is broken down and calcium is released into the bloodstream. This process is not directly related to immobility or multiple sclerosis.
Choice C rationale:
Hypocalcemia, or low calcium levels in the blood, is also not a direct risk for this client. While immobility can lead to bone loss over time, it does not directly cause hypocalcemia.
Choice D rationale:
Diarrhea is not a risk for this client based on the information provided. Diarrhea can be a symptom of many conditions but there is no indication in the scenario that this client is at risk.
Choice E rationale:
Urinary stasis is a risk for this client due to their immobility. When a person is immobile, urine can pool in the bladder, creating an environment where bacteria can grow, potentially leading to urinary tract infections.
Correct Answer is D
Explanation
Choice A rationale:
Give the client protamine if signs of magnesium sulfate toxicity occur. Protamine is not the antidote for magnesium sulfate toxicity. Calcium gluconate or calcium chloride is used to counteract the effects of magnesium sulfate toxicity by antagonizing the action of magnesium on the neuromuscular junction and the heart.
Choice B rationale:
Monitor the FHR via Doppler every 30 min. While fetal heart rate (FHR) monitoring is important during magnesium sulfate infusion due to the risk of fetal distress, using Doppler every 30 minutes may not provide continuous and accurate monitoring. Continuous electronic fetal monitoring is the standard of care in this situation.
Choice C rationale:
Restrict the client's total fluid intake to 250 mL/hr. Magnesium sulfate is excreted by the kidneys, so maintaining adequate urine output is crucial to prevent magnesium toxicity. Restricting fluid intake to 250 mL/hr would likely reduce urine output, leading to an increased risk of magnesium sulfate accumulation in the body, which could be harmful.
Choice D rationale:
Measure the client's urine output every hour. Monitoring urine output is essential during magnesium sulfate infusion as it helps assess renal function and magnesium excretion. Adequate urine output (at least 30 mL/hr) is necessary to prevent magnesium toxicity. Therefore, measuring the client's urine output every hour is a critical nursing intervention to ensure the safety of the client.
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