Nursing Elites

1. What is the antidote for Warfarin?

• A. Vitamin D
• B. Vitamin C
• C. Vitamin K
• D. Vitamin B6

Correct answer: C

Rationale: Vitamin K is the antidote for Warfarin toxicity as it helps reverse the anticoagulant effects of Warfarin. Warfarin works by inhibiting vitamin K-dependent clotting factors, and administering vitamin K can replenish these factors, thereby counteracting the anticoagulant effects of Warfarin. Vitamin D, Vitamin C, and Vitamin B6 do not have the specific mechanism to counteract the anticoagulant effects of Warfarin, making them incorrect choices.

2. A drug ending in the suffix (tidine) is considered a ______.

• A. Antidepressant
• B. Protease inhibitor
• C. Beta antagonist
• D. H antagonist

Correct answer: D

Rationale: Drugs ending in -tidine are histamine (H2) receptor antagonists, which block the action of histamine at the H2 receptors, commonly used to reduce stomach acid production. Therefore, the correct answer is an 'H antagonist.' It is essential to be familiar with drug suffixes as they can provide clues to the drug's class and function.

3. When teaching a client who has a new prescription for Ciprofloxacin, which of the following instructions should the nurse include?

• A. Take this medication with an antacid.
• B. Avoid direct sunlight.
• C. Increase your intake of dairy products.
• D. Expect urine to turn orange.

Correct answer: B

Rationale: The correct instruction for a client prescribed Ciprofloxacin is to avoid direct sunlight. Ciprofloxacin can cause photosensitivity, increasing the risk of sunburn. Clients should be advised to avoid direct sunlight and wear protective clothing, including hats and sunglasses when going outdoors to prevent skin damage. Choices A, C, and D are incorrect. Taking Ciprofloxacin with an antacid can reduce its absorption, so they should not be taken together. Increasing dairy product intake is not necessary or relevant to taking Ciprofloxacin. While Ciprofloxacin can discolor urine, turning it orange, this is not a critical side effect that requires specific instructions for the client.

4. A client is receiving heparin therapy. Which of the following laboratory values should the nurse monitor to evaluate the effectiveness of the therapy?

• A. PT
• B. aPTT
• C. INR
• D. Platelet count

Correct answer: B

Rationale: The corrected answer is B: aPTT. The activated partial thromboplastin time (aPTT) is the laboratory value used to monitor the effectiveness of heparin therapy. The aPTT should be maintained at 1.5 to 2 times the normal level to ensure therapeutic anticoagulation. Monitoring aPTT helps healthcare providers adjust heparin doses to achieve the desired anticoagulant effects and prevent complications such as bleeding or clotting. Choice A, PT (prothrombin time), is used to monitor warfarin therapy, not heparin. Choice C, INR (international normalized ratio), is also used to monitor warfarin therapy. Choice D, platelet count, is important for assessing the risk of bleeding, but it does not directly monitor the effectiveness of heparin therapy.

5. How can the nurse best explain the difference between angina and a myocardial infarction to a client presenting with severe chest pain?

• A. “Angina usually resolves with rest, and is rarely fatal, while a myocardial infarction necessitates immediate treatment and can be life-threatening.”
• B. “There is a clear distinction between the two. You will receive treatment based on the diagnosis of a myocardial infarction.”
• C. “Both conditions result from a clot obstructing the coronary arteries. Angina occurs with the blockage of a small vessel, whereas a myocardial infarction occurs with a blockage of a large vessel.”
• D. “Angina may not cause as intense chest pain, whereas a myocardial infarction always presents with severe chest pain.”

Correct answer: A

Rationale: When educating a client about the differences between angina and a myocardial infarction, it is crucial to emphasize key distinguishing factors. Angina typically improves with rest and is not usually life-threatening, whereas a myocardial infarction requires urgent intervention as it can be life-threatening. This explanation helps the client understand the urgency and severity associated with a myocardial infarction compared to angina.

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