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 ["37.5"]

Explanation

Drip rate (drops per minute) = (Volume to be infused (mL) x Drop factor) / Time (minutes)

3 hours = 3 * 60 = 180 minutes
Drip rate = (450 mL x 15 drops/mL) / 180 minutes Drip rate = 6750 / 180
Drip rate = 37.5 drops per minute
Therefore, the nurse should regulate the IV at a rate of 37.5 drops per minute.

Correct Answer is ["6.2"]

Explanation

Total daily dose in mg:
1.5 grams/day = 1500 mg/day Dose per administration in mg:
1500 mg/day ÷ 3 doses/day = 500 mg/dose Volume to be administered per dose in mL:
(500 mg/dose) / (400 mg/5 mL) = 6.25 mL/dose
Rounding to the nearest tenth, the nurse will administer 6.2 mL per dose.

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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

A client is ordered 450 ml of Normal Saline Solution over 3 hours. The drop factor on the IV tubing is 15 drops per ml. At what rate should the nurse regulate the IV?

Correct Answer is ["37.5"]

Explanation

A physician orders Lithium 5 grams/day is three divided doses PO for a client with bipolar disorder. The medication is supplied 400 mg/5 mL. How much will the nurse administer per dose? (Round the answer to the nearest tenth Use a leading zero if it applies. Do not use a trailing zero.)

Correct Answer is ["6.2"]

Explanation

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