A patient diagnosed with deep vein thrombosis asks the nurse, “How does this blood thinner heparin work?” Which response is most accurate?

Heparin makes the blood less thick and easier to flow.

Heparin dissolves the clot and decreases the formation of platelets.

Heparin does not thin the blood; it prevents new clots from forming.

Heparin decreases the number of platelets so the blood flows more easily.

Answer and Explanation

The Correct Answer is C

Choice A rationale

Heparin does not actually thin the blood or make it less thick. Instead, it works by increasing the activity of antithrombin, a protein that inhibits blood clotting. This prevents new clots from forming and existing clots from growing larger.

Choice B rationale

Heparin does not dissolve clots or decrease the formation of platelets. Its primary action is to increase the activity of antithrombin, which in turn inactivates thrombin and factor Xa, two key players in the blood clotting process.

Choice C rationale

This statement is accurate. Heparin does not thin the blood; instead, it prevents new clots from forming and existing clots from growing larger. It does this by increasing the activity of antithrombin, which in turn inactivates thrombin and factor Xa.

Choice D rationale

Heparin does not decrease the number of platelets or make the blood flow more easily. Its primary action is to increase the activity of antithrombin, which in turn inactivates thrombin and factor Xa.

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Correct Answer is C

Explanation

Choice A rationale

While it might seem that smaller doses of both drugs could be used when they are prescribed together, this is not the primary reason for using heparin and warfarin together. Both drugs have different mechanisms of action and are used for their unique therapeutic effects.

Choice B rationale

The combination of heparin and warfarin does not facilitate thrombolysis more quickly. Thrombolysis is the process of breaking down clots, and while these medications can prevent the formation of new clots, they do not actively break down existing ones.

Choice C rationale

Heparin and warfarin are often used together in the treatment of thrombophlebitis because they provide different benefits. Heparin acts quickly to prevent further clotting and allows the body to naturally break down existing clots. Warfarin, on the other hand, takes several days to become effective. Therefore, heparin is used to provide immediate anticoagulation until the warfarin becomes effective.

Choice D rationale

While it’s true that the combination of heparin and warfarin provides immediate anticoagulation, this is primarily due to the action of heparin. Warfarin takes several days to become effective, so it does not contribute to the immediate anticoagulant effect.

A. The client is at increased risk for developing hypoglycemia. B. The client is demonstrating signs of insulin resistance. C. The client is demonstrating good control of blood glucose. D. The client is at increased risk for developing hyperglycemia.

Correct Answer is C

Explanation

Choice A rationale

The client’s fasting blood glucose level, postprandial blood glucose level, and hemoglobin A1c level are all within the target range for good blood glucose control in diabetes. Therefore, the client is not at an increased risk for developing hypoglycemia.

Choice B rationale

Insulin resistance is a characteristic of type 2 diabetes, not type 1 diabetes. The client’s blood glucose levels are well controlled, which suggests that the client’s insulin regimen is effective, not that the client is demonstrating signs of insulin resistance.

Choice C rationale

Choice D rationale

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A patient diagnosed with deep vein thrombosis asks the nurse, “How does this blood thinner heparin work?” Which response is most accurate?

Choice A rationale

Choice B rationale

Choice C rationale

Choice D rationale

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A client is receiving heparin sodium 1000 units per hour via an infusion and warfarin sodium 2.5 mg PO for thrombophlebitis in the left leg. The nurse educates the client that heparin and warfarin are prescribed together because:

Correct Answer is C

Explanation

Choice A rationale

Choice B rationale

Choice C rationale

Choice D rationale

The client, on an intensified insulin regimen, consistently has a fasting blood glucose between 70 and 80 mg/dL, a postprandial blood glucose level below 200 mg/dL, and a hemoglobin A1c level of 5.5%. What is the nurse’s interpretation of these findings?

Correct Answer is C

Explanation

Choice A rationale

Choice B rationale

Choice C rationale

Choice D rationale

The nurse is preparing to administer a client’s warfarin sodium 5 mg PO at 1900. Upon entering the client’s room, the nurse finds several large, new ecchymotic areas on the client’s extremities. What should be the nurse’s initial action?

The nurse is preparing to administer an aminoglycoside antibiotic to a client admitted with a diagnosis of acute diverticulitis. What is the priority nursing action?

The nurse is caring for the following four clients on the nursing unit. Which client is at the highest risk for the development of deep vein thrombosis?

A client has recently been diagnosed with Type 2 diabetes. What should be the nurse’s initial step when developing an educational plan?

The nurse is caring for a client who is being evaluated for possible deep vein thrombosis of the right extremity. Which laboratory result is of most concern to the nurse?

The nurse is explaining to a patient why oral antihyperglycemic agents are not effective in Type 1 diabetes. What is the reason?

To prevent lipodystrophy in a client receiving insulin therapy, what should the nurse instruct the client to do?