A client is prescribed warfarin for the prevention of venous thromboembolism (VTE) following a right knee replacement. What should the nurse have available for a warfarin overdose?
vitamin K
magnesium sulfate
flumazinine
protamine sulfate
The Correct Answer is A
A. Vitamin K: Vitamin K is the antidote for warfarin overdose. Warfarin inhibits vitamin K-dependent clotting factors, and administering vitamin K reverses this effect by promoting the synthesis of clotting factors to control bleeding.
B. Magnesium sulfate: Magnesium sulfate is used to treat conditions such as torsades de pointes and eclampsia but has no role in reversing the anticoagulant effects of warfarin. It does not impact coagulation pathways or vitamin K levels.
C. Flumazenil: Flumazenil is an antidote for benzodiazepine overdose. It acts by antagonizing the effects of drugs like diazepam and lorazepam but has no effect on warfarin or anticoagulation reversal.
D. Protamine sulfate: Protamine sulfate is the antidote for heparin and low-molecular-weight heparin overdose, not warfarin. It neutralizes heparin's anticoagulant properties but does not interact with vitamin K or affect warfarin action.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["3"]
Explanation
Children with the common cold are generally most contagious during the early stages of the illness typically within the first 2 to 3 daysafter symptoms appear. This is when viral shedding is at its peak, even if the child’s symptoms are mild. Hand hygiene, covering coughs, and limiting contact with others during the early days are essential to prevent spread.
Correct Answer is C
Explanation
A. Elevated WBC:An elevated white blood cell count may indicate infection or inflammation but is not a common adverse effect directly linked to isoniazid. It should be evaluated, but it does not require the same urgent response as signs of hepatotoxicity.
B. Elevated RBC:An increase in red blood cell count is uncommon and not associated with isoniazid toxicity. It may reflect other physiological processes but is not a priority concern in the context of TB treatment with INH.
C. Elevated liver function tests:Isoniazid can cause hepatotoxicity, especially in older adults or when combined with other hepatotoxic drugs. Elevated liver enzymes (e.g., ALT, AST) indicate liver stress or injury and must be reported immediately to prevent progression to severe liver damage.
D. Elevated albumin:Elevated albumin levels are generally not clinically significant and rarely occur in acute illness. They do not indicate liver dysfunction and are not relevant to monitoring for isoniazid-related toxicity.
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