Which drug class is capable of dissolving blood clots?
Salicylates.
Antiplatelets.
Anticoagulants.
Thrombolytic agents.
The Correct Answer is D
Thrombolytic agents are a classification of drugs that dissolve blood clots by activating the enzyme plasmin, which breaks down the proteins (fibrins) that form clots. They are used for serious conditions, such as stroke, pulmonary embolism, or heart attack when the blood flow needs to be restored quickly.
Choice A is wrong because salicylates are anti-inflammatory drugs that inhibit the synthesis of prostaglandins, which are involved in inflammation and pain. They also have antiplatelet effects, but they do not dissolve existing clots.
Choice B is wrong because antiplatelets are drugs that prevent platelets from sticking together and forming clots. They are used to prevent clotting in conditions such as coronary artery disease, stroke, or peripheral arterial disease. They do not dissolve existing clots either.
Choice C is wrong because anticoagulants are drugs that prevent clots from forming by interfering with the clotting factors that are normally present in the blood.
They are used to treat or prevent conditions such as deep vein thrombosis, pulmonary embolism, or atrial fibrillation. They do not dissolve existing clots.
Normal ranges for clotting factors vary depending on the laboratory and the method used, but some common values are:
• Prothrombin time (PT): 11 to 13 seconds
• International normalized ratio (INR): 0.8 to 1.2
• Activated partial thromboplastin time (aPTT): 25 to 35 seconds
• Fibrinogen: 200 to 400 mg/dL
• D-dimer: less than 0.5 mcg/mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Report any muscle pain or weakness to the healthcare provider.This is because simvastatin This is because simvastatin can cause a rare but serious side effect of muscle damage (rhabdomyolysis), which can lead to kidney failure.Muscle pain or weakness can be signs of muscle breakdown and kidney damage, and should be reported to the healthcare provider as soon as possible.
Choice A is wrong because changing position slowly when rising from a chair is not related to simvastatin.This is a precaution for people who take medications that lower blood pressure, such as diuretics or beta blockers, to prevent dizziness or fainting.
Choice B is wrong because maintaining a steady intake of green leafy vegetables is not specific to simvastatin.This is a general dietary recommendation for people who take anticoagulants, such as warfarin, to prevent bleeding complications.
Choice C is wrong because consuming no more than 1 L/day of fluid is not advised for people who take simvastatin.This is a restriction for people who have heart failure or kidney disease, to prevent fluid overload.People who take simvastatin should drink enough fluids to stay hydrated and avoid dehydration, which can increase the risk of kidney damage.
Correct Answer is A
Explanation
Atorvastatin is a type ofstatin, which are the most potent antilipidemic agents, and have proven to lower the risk of myocardial infarction by reducing the levels of low-density lipoprotein (LDL) cholesterol and triglycerides in the blood.Statins also slightly increase the level of high-density lipoprotein (HDL) cholesterol, which is beneficial for cardiovascular health.
Choice B, niacin, is a type ofnicotinic acid, which can lower LDL cholesterol and triglycerides, and increase HDL cholesterol, but it is less effective than statins and has more side effects, such as flushing, itching, and liver toxicity.
Choice C, gemfibrozil, is a type offibric acid derivative, which can lower triglycerides and increase HDL cholesterol, but have little effect on LDL cholesterol.They are mainly used for patients with high triglyceride levels or low HDL cholesterol levels.
Choice D, amlodipine, is not an antilipidemic agent at all.It is a type ofcalcium channel blocker, which is used to treat hypertension and angina by relaxing the blood vessels and reducing the workload of the heart.
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