A nurse is caring for a client who has hypertension and asks the nurse about a prescription for propranolol. The nurse should inform the client that this medication is contraindicated in clients who have a history of which of the following conditions?

Choice A reason: "I'll be sure to eat more foods with vitamin K." is not the correct statement. Vitamin K is a nutrient that helps the blood to clot. Warfarin is an anticoagulant that inhibits the action of vitamin K and prevents the formation of blood clots. Eating more foods with vitamin K can counteract the effect of warfarin and increase the risk of thrombosis. The client should maintain a consistent intake of vitamin K and avoid sudden changes in their diet.

Choice B reason: "I'll take aspirin for my headaches." is not the correct statement. Aspirin is a nonsteroidal anti-inflammatory drug (NSAID) that inhibits platelet aggregation and prolongs bleeding time. Taking aspirin with warfarin can increase the risk of bleeding and bruising. The client should avoid taking any NSAIDs without consulting their provider. The client should use acetaminophen or other non-NSAID pain relievers for their headaches.

Choice C reason: "I'll use my electric razor for shaving." is the correct statement. Using an electric razor for shaving can reduce the risk of cuts and bleeding. The client should avoid using sharp objects or instruments that can cause injury or trauma. The client should also use a soft toothbrush and floss gently to prevent bleeding gums.

Choice D reason: "It's okay to have a couple of glasses of wine with dinner each evening." is not the correct statement. Alcohol can interact with warfarin and affect its metabolism and effectiveness. Drinking alcohol with warfarin can either increase or decrease the blood levels of warfarin and alter the international normalized ratio (INR), which is a measure of the blood's clotting ability. The client should limit their alcohol intake and monitor their INR regularly.

Choice A reason: Atropine is not the correct answer, as it is an anticholinergic medication that is used to treat bradycardia, not warfarin overdose. Atropine has no effect on the INR or the coagulation cascade.

Choice B reason: Epinephrine is not the correct answer, as it is a catecholamine medication that is used to treat anaphylaxis, cardiac arrest, or severe hypotension, not warfarin overdose. Epinephrine has no effect on the INR or the coagulation cascade.

Choice C reason: Vitamin K is the correct answer, as it is the antidote for warfarin overdose. Vitamin K is a fat-soluble vitamin that is essential for the synthesis of clotting factors II, VII, IX, and X. Vitamin K can reverse the effects of warfarin and lower the INR to a therapeutic range.

Choice D reason: Protamine is not the correct answer, as it is the antidote for heparin overdose, not warfarin overdose. Protamine is a protein that binds to and neutralizes heparin, but has no effect on warfarin or the INR.