A nurse is caring for a client who is receiving heparin by continuous IV infusion for treatment of venous thrombosis. Which of the following laboratory values should the nurse monitor for in order to titrate the heparin dose?
Platelet function assay
aPTT
INR
Amylase
The Correct Answer is B
When caring for a client receiving heparin by continuous IV infusion for the treatment of venous thrombosis, the nurse should monitor the client's aPTT (Activated Partial Thromboplastin Time) to titrate the heparin dose.
Heparin is an anticoagulant medication used to prevent and treat blood clots. The aPTT is a coagulation test that measures the time it takes for the blood to clot when a specific activator is added. Monitoring the aPTT is a standard method for assessing the anticoagulant effect of heparin and ensuring that the client's blood remains within the desired therapeutic range.
The therapeutic range for aPTT while on heparin therapy varies depending on the indication and the client's condition but is generally maintained at a level that prolongs the clotting time enough to prevent and treat thrombosis while avoiding excessive bleeding risk.
Let's go through the other options:
A. Platelet function assay: While monitoring platelet function is essential for assessing overall hemostasis and platelet function, it is not specifically used for titrating heparin doses. Platelet function assays are more commonly used to assess the function of platelets in the context of platelet disorders or antiplatelet medication therapy.
C. INR (International Normalized Ratio): The INR is used to monitor the effect of vitamin K antagonist anticoagulants, such as warfarin, and is not the appropriate test for monitoring heparin therapy.
D. Amylase: Amylase is an enzyme produced by the pancreas and salivary glands and is not relevant for monitoring heparin therapy. Elevated amylase levels are typically associated with pancreatitis and not related to heparin treatment.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["0.8"]
Explanation
To calculate the amount of morphine to administer, we can use the following formula:
Amount of medication (mL) = Desired dose (mg) / Concentration (mg/mL)
In this case, the desired dose is 8 mg and the concentration is 10 mg/mL.
Amount of medication (mL) = 8 mg / 10 mg/mL
Amount of medication (mL) = 0.8 mL
Therefore, the nurse should administer 0.8 mL of morphine.
Correct Answer is D
Explanation
When planning care for a client who had a myocardial infarction and is receiving thrombolytic therapy with an IV infusion of alteplase, the nurse should include the intervention of monitoring for changes in the client's level of consciousness.
Alteplase is a thrombolytic medication used to break down blood clots in certain medical emergencies, such as acute myocardial infarction (heart attack) or ischemic stroke. One of the potential complications of thrombolytic therapy, including alteplase, is bleeding. The medication's action of breaking down blood clots can also affect the body's natural clotting mechanisms, increasing the risk of bleeding.
Bleeding in the brain is a severe and potentially life-threatening complication associated with thrombolytic therapy. Therefore, it is essential for the nurse to closely monitor the client for any signs of intracranial bleeding, such as changes in the level of consciousness, confusion, severe headache, slurred speech, or weakness on one side of the body.
Let's go through the other options:
A. Administer aspirin instead of acetaminophen for fever: While aspirin is commonly used in the management of myocardial infarction, it is not specifically indicated for fever. Acetaminophen is the preferred antipyretic medication for fever management in most cases, and it does not interfere with the action of thrombolytic therapy.
B. Ambulate the client as often as tolerated: While early ambulation is beneficial for clients with myocardial infarction, it may not be appropriate during thrombolytic therapy. Thrombolytic therapy carries an increased risk of bleeding, and ambulation may be limited or contraindicated during the treatment period, depending on the client's overall condition and bleeding risk.
C. Administer a sodium phosphate enema for constipation: The administration of a sodium phosphate enema is not a specific intervention related to thrombolytic therapy or myocardial infarction. Bowel management is important for client comfort and overall well-being, but it is not a priority intervention in the immediate care of a client undergoing thrombolytic therapy.
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