What is the main action of anticoagulant drugs?
To dissolve the existing clots.
To transport platelets.
To act as a fibrinolytic agent.
To prevent further clots from forming.
The Correct Answer is D
Anticoagulant drugs are medicines that prevent blood clots from forming or growing larger.
They do not dissolve existing clots or transport platelets. They work by interfering with different steps of the blood coagulation pathway, which is the process that leads to clot formation.
Choice A is wrong because anticoagulant drugs do not dissolve existing clots.
To dissolve clots, you need fibrinolytic drugs, which break down the fibrin mesh that holds the clots together.
Choice B is wrong because anticoagulant drugs do not transport platelets.
Platelets are blood cells that stick together to form clots.
Anticoagulant drugs may affect the function of platelets, but they do not move them around.
Choice C is wrong because anticoagulant drugs do not act as fibrinolytic agents.
Fibrinolytic agents are drugs that activate plasmin, an enzyme that breaks down fibrin.
Anticoagulant drugs may inhibit the formation of fibrin, but they do not break it down.
Some examples of anticoagulant drugs are warfarin, heparin, and factor Xa inhibitors.
The normal ranges for some blood tests that measure the effects of anticoagulants are:
• Prothrombin time (PT): 11 to 13.5 seconds
• International normalized ratio (INR): 0.8 to 1.2
• Activated partial thromboplastin time (aPTT): 25 to 35 seconds
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
According to the International Society of Hypertension, lifestyle interventions are recommended for three to six months before medication in patients with grade 1 hypertension (BP < 160/100 mm Hg) and no comorbidities.Diet and exercise can lower BP by reducing weight, sodium intake, alcohol consumption, and stress levels.
Choice A is wrong because angiotensin-converting enzyme (ACE) inhibitors are not the first-line medication for hypertension in the general population.They are preferred in patients with diabetes, chronic kidney disease, or heart failure.
Choice B is wrong because combination diuretics are not the initial recommendation for hypertension.They are used when monotherapy is not sufficient to achieve the target BP or when there is fluid retention.
Choice C is wrong because beta-adrenergic blocking agents are not the first-line medication for hypertension in the general population.They are preferred in patients with ischemic heart disease, heart failure, or arrhythmias.
Correct Answer is D
Explanation
Taking a loop diuretic with supper is not advisable because it can cause nocturia, which is the need to urinate frequently at night. This can disrupt sleep and affect quality of life.Loop diuretics should be taken in the morning or early afternoon to avoid this problem.
Choice A is wrong because weighing oneself each day before breakfast is a good way to monitor fluid balance and detect any signs of fluid retention or dehydration.This can help adjust the dose of the loop diuretic as needed.
Choice B is wrong because contacting the healthcare provider if shortness of breath returns is a sensible precaution and indicates awareness of the symptoms of worsening heart failure.Shortness of breath is caused by fluid accumulation in the lungs, which loop diuretics help to prevent or reduce.
Choice C is wrong because having a banana with breakfast every morning is a good source of potassium, which can help prevent hypokalemia, a common side effect of loop diuretics.Loop diuretics increase the excretion of potassium in the urine, which can lead to low blood levels of potassium and cause muscle weakness, cramps, fatigue, arrhythmias, and increased sensitivity to digoxin.
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