A nurse is caring for a patient who is receiving heparin therapy via continuous IV infusion for treatment of deep vein thrombosis (DVT). The nurse should monitor which of the following laboratory values to evaluate therapeutic effectiveness of heparin therapy?

Activated partial thromboplastin time (aPTT)

Prothrombin time (PT)

International normalized ratio (INR)

Platelet count

Hemoglobin.

Answer and Explanation

The Correct Answer is A

The correct answer is choice A) Activated partial thromboplastin time (aPTT). This is because aPTT is the most commonly used laboratory test to monitor the therapeutic effect of heparin therapy.

Heparin is an anticoagulant that inhibits the formation of thrombin and fibrin, which are essential for blood clotting. Heparin therapy is indicated for the treatment of deep vein thrombosis (DVT), which is a condition where blood clots form in the deep veins of the legs or pelvis.

Choice B) Prothrombin time (PT) is wrong because PT is used to monitor the therapeutic effect of warfarin therapy, not heparin therapy.

Warfarin is another anticoagulant that inhibits the synthesis of vitamin K-dependent clotting factors. Warfarin therapy is also indicated for the treatment of DVT, but it has a different mechanism of action and monitoring than heparin therapy.

Choice C) International normalized ratio (INR) is wrong because INR is a standardized way of reporting PT results that accounts for the variability of different laboratory methods. INR is also used to monitor the therapeutic effect of warfarin therapy, not heparin therapy.

Choice D) Platelet count is wrong because platelet count is not directly affected by heparin therapy. However, platelet count should be monitored periodically in patients receiving heparin therapy to detect heparin-induced thrombocytopenia (HIT), which is a rare but serious complication of heparin therapy that causes a drop in platelet count and an increased risk of thrombosis.

Choice E) Hemoglobin is wrong because hemoglobin is not directly affected by heparin therapy. However, hemoglobin should be monitored periodically in patients receiving heparin therapy to detect bleeding complications, which are the most common adverse effects of heparin therapy.

The normal range for aPTT is 25 to 35 seconds, but the therapeutic range for heparin therapy is usually 1.5 to 2.5 times the normal range, depending on the indication and protocol.

The normal range for PT is 11 to 13 seconds, and the therapeutic range for warfarin therapy is usually an INR of 2 to 3, depending on the indication and protocol

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Correct Answer is A

Explanation

Omeprazole is a proton pump inhibitor (PPI) that reduces the production of stomach acid.

Dabigatran is an anticoagulant that prevents blood clots from forming.

Both drugs can increase the risk of bleeding in the gastrointestinal tract, especially in clients with peptic ulcer disease.Therefore, they should not be used together unless absolutely necessary.

Choice B. Ranitidine is wrong because ranitidine is a histamine-2 receptor antagonist (H2RA) that also reduces the production of stomach acid, but to a lesser extent than PPIs.Ranitidine does not interact significantly with dabigatran and does not increase the risk of bleeding.

Choice C. Sucralfate is wrong because sucralfate is a mucosal protectant that forms a barrier over ulcers and protects them from acid and enzymes.Sucralfate does not affect the coagulation system and does not increase the risk of bleeding.

Choice D. Misoprostol is wrong because misoprostol is a synthetic prostaglandin that inhibits gastric acid secretion and increases bicarbonate and mucus production.

Misoprostol is used to prevent ulcers in clients who take NSAIDs, which can cause ulcers and bleeding.

Misoprostol does not interact with dabigatran and does not increase the risk of bleeding.

A. Unusual bleeding or bruising B. Blood in urine or stool C. Abdominal pain or swelling D. Headache or dizziness E. Shortness of breath.

Correct Answer is ["A","B","C"]

Explanation

Dabigatran etexilate mesylate (Pradaxa) is a medication that prevents blood clots and reduces the risk of stroke in patients with atrial fibrillation.

However, it can also cause bleeding as a side effect.

Therefore, the nurse should instruct the client to report any signs of unusual bleeding or bruising, blood in urine or stool, or abdominal pain or swelling immediately.These could indicate a serious complication such as gastrointestinal bleeding, hemorrhage, or internal organ damage.

Choice D, headache or dizziness, is not a correct answer.

Although these symptoms could be caused by dabigatran, they are not as serious or urgent as bleeding.

They could also be due to other factors such as dehydration, low blood pressure, or stress.The nurse should advise the client to monitor these symptoms and seek medical attention if they persist or worsen.

Choice E, shortness of breath, is not a correct answer.

Shortness of breath is not a common side effect of dabigatran.

However, it could be a symptom of atrial fibrillation or its complications such as heart failure or stroke.The nurse should educate the client about the signs and symptoms of these conditions and instruct them to call 911 if they experience chest pain, palpitations, fainting, or weakness.

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A nurse is caring for a patient who is receiving heparin therapy via continuous IV infusion for treatment of deep vein thrombosis (DVT). The nurse should monitor which of the following laboratory values to evaluate therapeutic effectiveness of heparin therapy?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

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?

Correct Answer is A

Explanation

A client who has atrial fibrillation is prescribed dabigatran etexilate mesylate (Pradaxa). The nurse should instruct the client to report which of the following findings immediately? (Select all that apply.)

Correct Answer is ["A","B","C"]

Explanation

A nurse is caring for a patient who is receiving heparin therapy via continuous IV infusion for treatment of deep vein thrombosis (DVT). The nurse should monitor which of the following laboratory values to evaluate therapeutic effectiveness of heparin therapy?

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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?