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 C

Explanation

A. While taking vital signs can provide useful information about the client's overall condition, it does not address the immediate concern of potential hypoglycemia. The priority is to assess blood glucose levels directly.
B. Glucagon can be administered in cases of severe hypoglycemia where the patient is unable to ingest glucose orally. However, before administering glucagon, the nurse should first check the blood glucose level to confirm hypoglycemia.
C. Checking the blood glucose level will provide immediate information about whether the client is experiencing hypoglycemia. If the blood glucose is low, appropriate treatment (such as administering glucose or a fast-acting carbohydrate) can be initiated. If it’s within normal limits, other causes for the symptoms can be explored.
D. While it may be necessary to notify the physician depending on the outcome of the blood glucose reading or if the client’s condition worsens, it is not the first action. Immediate assessment of the blood glucose level is essential to determine the correct course of action.

A. Prepare to administer prescribed epinephrine B. Assess the client's apical pulse and blood pressure C. Stop infusing the client's intravenous antibiotic D. Administer 4 liters of oxygen via nasal cannula

Correct Answer is C

Explanation

A. While epinephrine is crucial in cases of anaphylaxis, it should not be the first action taken. The immediate priority is to stop the offending medication.
B. While assessing vital signs is important, it is not the first action. The primary concern is to halt the exposure to the potential allergen.
C. The first action in this situation should be to immediately stop the infusion of the antibiotic. This prevents further exposure to the allergen and is critical to managing the potential anaphylactic reaction.

D. While providing oxygen may be necessary later if the client is hypoxic, the immediate priority is to stop the infusion of the antibiotic first. Administering oxygen is important but comes after halting the offending agent.

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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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Naxlex Comprehensive Predictor Exams

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Correct Answer is C

Explanation

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Correct Answer is C

Explanation

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