A client is taking aspirin (ASA) and asks the nurse how long the anticoagulant effect of a single dose of aspirin can last. The nurse replies:
"The anticoagulant effect of a single dose of aspirin can last for as long as a month."
"The anticoagulant effect of a single dose of aspirin can last for as long as a day."
"The anticoagulant effect of a single dose of aspirin can last for as long as a week."
"The anticoagulant effect of a single dose of aspirin can last for as long as 12 hours."
The Correct Answer is C
A. "The anticoagulant effect of a single dose of aspirin can last for as long as a month." This statement is incorrect. While aspirin has antiplatelet effects that inhibit blood clot formation, its duration of action is not as long as a month. Aspirin irreversibly inhibits the enzyme cyclooxygenase (COX), thereby inhibiting platelet aggregation. However, the effects on platelet function are not permanent, and platelets turnover within a few days, thus the anticoagulant effect of a single dose of aspirin typically lasts for a shorter duration.
B. "The anticoagulant effect of a single dose of aspirin can last for as long as a day." Aspirin's primary effect is on platelets, not directly on overall blood clotting. It inhibits the COX enzyme, reducing the production of thromboxane A2, a chemical that promotes platelet aggregation. The initial inhibition of platelet function is strongest within the first 24 hours after taking aspirin. However, the affected platelets remain dysfunctional for their entire lifespan (around 7-10 days).
C. "The anticoagulant effect of a single dose of aspirin can last for as long as a week." This statement is correct. Aspirin's effect on platelets is due to its irreversible inhibition of the COX enzyme. Platelets have a lifespan of about 7-10 days. Once a platelet is affected by aspirin, it cannot regain its function. As your body continuously produces new platelets, the overall antiplatelet effect gradually diminishes over time.
D. "The anticoagulant effect of a single dose of aspirin can last for as long as 12 hours."
Rationale: This statement is partially correct. The antiplatelet effect of aspirin does not typically last as short as 12 hours. While the peak inhibition of platelet function occurs within hours after administration, the duration of action is longer due to the irreversible inhibition of COX-1. However, stating that it lasts exactly 12 hours may not be entirely accurate for all individuals, as the duration of action can vary depending on factors such as individual metabolism and dose.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Oprelvekin (Neumega): Oprelvekin is a recombinant human interleukin-11 (IL-11) used to stimulate the production of platelets, not red blood cells. It is primarily indicated for patients with thrombocytopenia (low platelet count) due to chemotherapy.
B. Epoetin alfa (Procrit): Epoetin alfa is a synthetic form of erythropoietin, a hormone produced by the kidneys that stimulates the production of red blood cells in the bone marrow. It is commonly used to treat anemia associated with chronic kidney disease, chemotherapy, or HIV therapy. Therefore, it is administered to increase the number of circulating red blood cells.
C. Clopidogrel (Plavix): Clopidogrel is an antiplatelet medication that inhibits platelet aggregation, thereby reducing the risk of blood clots. It does not directly stimulate the production of red blood cells.
D. Filgrastim (Neupogen): Filgrastim is a recombinant human granulocyte colony-stimulating factor (G-CSF) that stimulates the production of white blood cells, particularly neutrophils, in the bone marrow. It is used to treat neutropenia (low white blood cell count) caused by chemotherapy, bone marrow transplantation, or certain diseases. It does not directly stimulate the production of red blood cells.
Correct Answer is C
Explanation
A. To prevent overuse of prescription medications: While some patients may use herbal therapies as an alternative to avoid overuse of prescription medications, this is not the primary reason for the widespread use of herbal therapies. People often turn to herbal remedies for their perceived natural benefits and to complement conventional treatments, rather than to prevent overuse.
B. Because herbal therapies are so much safer than manmade drugs: This is a common misconception. Herbal therapies are not necessarily safer than prescription drugs. They can have potent effects and interact with medications, potentially causing adverse reactions. The safety of herbal remedies varies widely depending on the specific herb and its use.
C. To increase feelings of wellness and promote holistic treatment: Many patients use herbal therapies as part of a holistic approach to health. They seek to improve overall wellness, balance, and harmony in their body, mind, and spirit. Herbal therapies are often integrated into a lifestyle that values natural and preventive health measures.
D. Because herbal therapies are much more regulated than prescription drugs: This statement is incorrect. Herbal therapies are generally less regulated than prescription drugs. In many countries, herbal supplements are not subject to the same rigorous testing and approval processes as prescription medications, leading to variability in quality and potency.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.