Nursing Elites

1. What is the primary action of warfarin as an anticoagulant?

• A. Prevents the formation of blood clots
• B. Dissolves existing blood clots
• C. Dilates coronary arteries
• D. Treats rhythm disturbances

Correct answer: A

Rationale: The correct answer is A: "Prevents the formation of blood clots." Warfarin acts as an anticoagulant by inhibiting the synthesis of certain clotting factors in the liver. This action reduces the blood's ability to clot, making it effective in preventing the formation of blood clots. Choice B is incorrect because warfarin does not dissolve existing blood clots; it prevents their formation. Choice C is incorrect because warfarin's primary action is not to dilate coronary arteries. Choice D is incorrect as warfarin is not used to treat rhythm disturbances, but rather to prevent clot formation.

2. A healthcare professional is administering a Dopamine infusion at a low dose to a client with severe heart failure. Which of the following findings is an expected effect of this medication?

• A. Lowered heart rate
• B. Increased myocardial contractility
• C. Decreased conduction through the AV node
• D. Vasoconstriction of renal blood vessels

Correct answer: B

Rationale: Dopamine, when administered at a low dose, is expected to increase myocardial contractility by stimulating beta1 receptors. This positive inotropic effect leads to an increase in cardiac output. Therefore, the correct answer is increased myocardial contractility, as it is a desired effect of administering dopamine to a client with severe heart failure.

3. A healthcare professional is reviewing the medication list of a client scheduled for surgery. Which of the following medications places the client at risk for increased bleeding during surgery?

• A. Warfarin
• B. Acetaminophen
• C. Ibuprofen
• D. Aspirin

Correct answer: D

Rationale: Aspirin is an anticoagulant that inhibits platelet function, increasing the risk of bleeding during surgery. It is important for the healthcare professional to identify this medication, inform the surgical team, and consider withholding it prior to surgery to reduce the risk of excessive bleeding. Warfarin is also an anticoagulant but can be managed by adjusting the dosage or monitoring INR levels. Acetaminophen and ibuprofen are not associated with increased bleeding risk as they do not affect platelet function like aspirin.

4. A healthcare professional is obtaining a medication history from a client who is to receive Imipenem-cilastatin IV to treat an infection. Which of the following medications the client also receives puts them at risk for a medication interaction?

• A. Regular insulin
• B. Furosemide
• C. Valproic acid
• D. Ferrous sulfate

Correct answer: C

Rationale: The correct answer is C, Valproic acid. Imipenem-cilastatin decreases the blood levels of valproic acid, an antiseizure medication, which can lead to increased seizure activity. Monitoring and adjusting the dosage of valproic acid may be necessary when co-administered with Imipenem-cilastatin to prevent adverse effects. Choices A, B, and D do not typically interact significantly with Imipenem-cilastatin and are not associated with a high risk of adverse interactions in this scenario.

5. A client has a prescription for Alendronate. Which of the following instructions should the nurse include?

• A. Take this medication before bed.
• B. Take the medication with food.
• C. Sit upright for at least 30 minutes after taking the medication.
• D. Expect to have frequent headaches while on this medication.

Correct answer: C

Rationale: The correct instruction for a client prescribed Alendronate is to sit upright for at least 30 minutes after taking the medication. Alendronate can cause esophageal irritation, and maintaining an upright position helps prevent this adverse effect by reducing the risk of reflux of the medication into the esophagus. Choice A is incorrect because Alendronate should be taken in the morning, at least 30 minutes before the first food, beverage, or medication of the day with a full glass of plain water. Choice B is incorrect because Alendronate should not be taken with food. Choice D is incorrect because frequent headaches are not a common side effect of Alendronate.

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