A nurse is caring for a client who has atrial fibrillation and is receiving warfarin therapy to prevent thromboembolism formation. The nurse should monitor which of the following laboratory values to determine the effectiveness of the medication?

Activated partial thromboplastin time (aPTT)

Prothrombin time (PT)

International normalized ratio (INR)

Platelet count.

Answer and Explanation

The Correct Answer is C

Warfarin is an anticoagulant that inhibits the synthesis of vitamin K-dependent clotting factors. The INR is a standardized measure of the prothrombin time (PT), which reflects the degree of anticoagulation. The therapeutic range for INR is 2 to 3 for most conditions, and higher for some mechanical heart valves.

Choice A) Activated partial thromboplastin time (aPTT) is wrong because it is used to monitor heparin therapy, not warfarin therapy.

Heparin is another anticoagulant that works by activating antithrombin III, which inhibits thrombin and factor Xa. The therapeutic range for aPTT is 1.5 to 2.5 times the normal value, which is 30 to 40 seconds.

Choice B) Prothrombin time (PT) is wrong because it is not a standardized measure of the warfarin effect.

The PT can vary depending on the reagents and methods used by different laboratories. The INR was developed to eliminate this variability and provide a consistent measure of the warfarin effect.

Choice D) Platelet count is wrong because it is not affected by warfarin therapy.

Warfarin does not affect the number or function of platelets, only the clotting factors. Platelet count can be used to monitor other conditions that affect hemostasis, such as thrombocytopenia or thrombocytosis.

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Correct Answer is B

Explanation

This statement indicates that the patient understands that rivaroxaban (Xarelto) is an anticoagulant that can increase the risk of bleeding and bruising.The patient should avoid activities that may cause injury, such as contact sports, sharp objects, or falls.

Choice A is wrong because aspirin is also an antiplatelet drug that can further increase the risk of bleeding when taken with rivaroxaban.The patient should not take aspirin or any other nonsteroidal anti-inflammatory drugs (NSAIDs) without consulting the prescriber.

Choice C is wrong because rivaroxaban can be taken with or without food.The patient does not need to take the medication with food to prevent stomach upset or absorption problems.

Choice D is wrong because rivaroxaban should be taken as prescribed and not stopped abruptly without consulting the prescriber.Stopping the medication can increase the risk of blood clots and stroke.The patient should not stop taking the medication even if they feel better or have no symptoms.

A. Hypotension B. Bleeding C. Dysrhythmias D. Nausea E. Fever.

Correct Answer is ["B"]

Explanation

Alteplase is a fibrinolytic agent that dissolves blood clots and restores blood flow.However, it also increases the risk of bleeding from any site, such as the nose, gums, injection sites, or internal organs.Therefore, the nurse should monitor the client for signs of bleeding, such as bruising, hematuria, hematemesis, melena, or decreased hemoglobin and hematocrit levels.

Choice A is wrong because hypotension is not a common adverse effect of alteplase.Hypotension may occur due to blood loss from bleeding or other causes, such as dehydration, sepsis, or cardiac dysfunction.

Choice C is wrong because dysrhythmias are not a common adverse effect of alteplase.Dysrhythmias may occur due to pulmonary embolism itself, which can cause hypoxia, acidosis, and increased pulmonary artery pressure.

Choice D is wrong because nausea is not a common adverse effect of alteplase.Nausea may occur due to other factors, such as anxiety, pain, or medications.

Choice E is wrong because fever is not a common adverse effect of alteplase.Fever may occur due to infection, inflammation, or other causes.

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A nurse is caring for a client who has atrial fibrillation and is receiving warfarin therapy to prevent thromboembolism formation. The nurse should monitor which of the following laboratory values to determine the effectiveness of the medication?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A patient has been prescribed rivaroxaban (Xarelto) for deep vein thrombosis (DVT). Which statement by the patient indicates understanding of medication teaching?

Correct Answer is B

Explanation

A nurse is caring for a client who has pulmonary embolism and is receiving alteplase via continuous IV infusion.The nurse should monitor for which adverse effects of this medication? (Select all that apply.)

Correct Answer is ["B"]

Explanation

The patient has been receiving heparin therapy for deep vein thrombosis (DVT). The patient’s activated partial thromboplastin time (aPTT) result is 90 seconds (therapeutic range: 60-80 seconds). What will be included in patient care? (Select all that apply.).

The nurse is caring for a patient who has received alteplase [Activase]. It is most important for the nurse to take which action?

A nurse is caring for a client who has deep vein thrombosis and is receiving enoxaparin therapy subcutaneously once daily at home. The nurse should instruct the client to report which of the following findings immediately?

The nurse recognizes what absolute contraindication to the administration of a thrombolytic to a patient having an acute myocardial infarction?

A nurse is reviewing the medication list of a client who is prescribed dabigatran and has a history of peptic ulcer disease. The nurse should recognize that which of the following medications can increase the risk of bleeding in this client?

A patient is receiving heparin therapy during hemodialysis for chronic renal failure and develops heparin-induced thrombocytopenia (HIT). The nurse anticipates that which medication will be ordered for this patient?

A nurse is caring for a patient who has been prescribed enoxaparin (Lovenox) subcutaneously for prophylaxis against deep vein thrombosis (DVT). The nurse should instruct the patient to: