The client diagnosed with deep vein thrombosis asks the nurse, "How does heparin work to help with my blood clot?" Which response is most accurate? "Heparin:

makes the blood less thick and easier to flow."

does not thin the blood: it prevents new clots from forming."

decreases the number of platelets so the blood clots more slowly."

dissolves the clot and decreases the formation of platelets."

Answer and Explanation

The Correct Answer is B

A.   Heparin does not actually "thin" the blood in the sense of reducing viscosity. Instead, it works by inhibiting certain factors in the coagulation cascade, preventing clot formation. Thus, this response does not accurately describe how heparin functions.

B.   Heparin works by activating antithrombin III, which inhibits thrombin and factor Xa, thereby preventing the formation of new clots. It does not dissolve existing clots but helps to prevent the enlargement of existing ones and the formation of new clots.
C.   Heparin does not decrease the number of platelets; rather, it interferes with the clotting process by inhibiting specific clotting factors. Platelets may still be present, but their ability to form clots is inhibited by the action of heparin.
D.   Heparin does not dissolve existing clots; that function is typically performed by thrombolytic agents. Heparin primarily prevents new clot formation and the extension of existing clots. Additionally, it does not decrease platelet formation.

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Correct Answer is B

Explanation

This is the correct time to draw the peak level. The peak level is the highest concentration of the drug in the blood, which typically occurs about 30 minutes to an hour after the end of the infusion.

A. the heparin provides anticoagulation until the warfarin becomes effective. B. this combination facilitates the dissolving of the clot. C. smaller doses of both drugs can be used with this method of administration. D. this combination provides immediate maximum protection against clot formation.

Correct Answer is A

Explanation

A. Heparin acts quickly to provide immediate anticoagulation, while warfarin takes several days to reach therapeutic levels. Heparin ensures that the client is adequately anticoagulated during the initial phase while waiting for warfarin to take effect.
B. Neither heparin nor warfarin directly dissolves clots. They are both anticoagulants that prevent further clot formation and allow the body's natural processes (fibrinolysis) to break down the existing clot over time. The combination does not specifically facilitate the dissolution of clots.
C. This statement is misleading. The use of both medications is not primarily about reducing the doses. Instead, each medication has its own dosing based on the patient’s needs, and the combination is used for timing and efficacy rather than dose reduction.
D. While heparin does provide immediate anticoagulation, saying it provides "maximum protection" could be misleading. It does ensure effective anticoagulation in the short term, but the maximum effectis related to individual response and therapeutic levels, which vary. Additionally, once warfarin reaches therapeutic levels, it becomes the primary agent for long-term anticoagulation.

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The client diagnosed with deep vein thrombosis asks the nurse, "How does heparin work to help with my blood clot?" Which response is most accurate? "Heparin:

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