A nurse is assessing a client who is receiving a unit of packed red blood cells. Which of the following findings is a manifestation of acute hemolytic reaction?
Distended neck veins
Client report of low back pain
A productive cough
Client report of tinnitus
The Correct Answer is B
Choice A reason: Distended neck veins is not a manifestation of acute hemolytic reaction, but it may indicate fluid overload, which is another possible complication of blood transfusion. Fluid overload may occur when the blood volume or rate of infusion exceeds the client's circulatory capacity. Fluid overload may manifest as dyspnea, crackles, edema, hypertension, or tachycardia.
Choice B reason: Client report of low back pain is a manifestation of acute hemolytic reaction, which is a life-threatening condition that occurs when the donor blood is incompatible with the recipient's blood. Acute hemolytic reaction may occur within minutes or hours of the transfusion and may cause the destruction of the transfused red blood cells. Acute hemolytic reaction may manifest as fever, chills, low back pain, hemoglobinuria, hypotension, or shock.
Choice C reason: A productive cough is not a manifestation of acute hemolytic reaction, but it may indicate a respiratory infection, which is a potential risk of blood transfusion. Blood transfusion may transmit infectious agents, such as bacteria, viruses, or parasites, from the donor to the recipient. A productive cough may also be a sign of pulmonary edema, which may result from fluid overload or transfusion-related acute lung injury (TRALI).
Choice D reason: Client report of tinnitus is not a manifestation of acute hemolytic reaction, but it may indicate ototoxicity, which is a possible adverse effect of some medications, such as aminoglycosides, loop diuretics, or salicylates. Ototoxicity may damage the inner ear or the auditory nerve and cause hearing loss, tinnitus, or vertigo. The nurse should assess the client's medication history and monitor the client's hearing function.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
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.
Correct Answer is C
Explanation
Choice A reason: Black cohosh is an herbal supplement that is used to treat menopausal symptoms, such as hot flashes and mood swings. It does not have a significant interaction with warfarin and does not affect the coagulation status of the client.
Choice B reason: Echinacea is an herbal supplement that is used to boost the immune system and prevent or treat common colds and infections. It does not have a significant interaction with warfarin and does not affect the coagulation status of the client.
Choice C reason: Feverfew is an herbal supplement that is used to treat migraines, arthritis, and fever. It has a significant interaction with warfarin and can increase the risk of bleeding and bruising. It can also reduce the effectiveness of warfarin and alter the client's international normalized ratio (INR).

Choice D reason: Flaxseed is an herbal supplement that is used to lower cholesterol, blood pressure, and inflammation. It does not have a significant interaction with warfarin and does not affect the coagulation status of the client.
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