what is the antidote for warfarin
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Nursing Elites

ATI RN

ATI Pharmacology Proctored Exam 2024

1. What is the antidote for Warfarin?

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 nurse is providing teaching to a client who has asthma and is beginning to take montelukast. Which of the following statements by the client indicates an understanding of the teaching?

Correct answer: B

Rationale: Montelukast is typically taken once daily in the evening for long-term control of asthma symptoms. It helps prevent asthma attacks by reducing inflammation in the airways. While montelukast can also be used for exercise-induced bronchospasm in some cases, it is generally not a rescue medication and should be taken regularly, not on an as-needed basis.

3. A nurse on a medical-surgical unit administers a hypnotic medication to an older adult client at 2100. The next morning, the client is drowsy and wants to sleep instead of eating breakfast. Which of the following factors should the nurse identify as a possible reason for the client's drowsiness?

Correct answer: C

Rationale: In older adults, reduced hepatic function can lead to prolonged effects of medications metabolized by the liver. This situation can result in increased drug levels in the body, causing drowsiness and other side effects. Adjusting the dosage of the hypnotic medication may be necessary to prevent such adverse effects in older adult clients. Choice A, reduced cardiac function, is not directly related to the metabolism of the medication and is unlikely to cause drowsiness. Choice B, first-pass effect, refers to the initial metabolism of a drug in the liver before it enters circulation, but it is not the cause of drowsiness in this scenario. Choice D, increased gastric motility, does not play a significant role in the metabolism of the medication and is not a likely cause of the client's drowsiness.

4. A nurse is assessing a client who is receiving IV vancomycin. The nurse notes a flushing of the neck and tachycardia. Which of the following actions should the nurse take?

Correct answer: C

Rationale: Flushing and tachycardia are signs of Red Man Syndrome, which can be mitigated by decreasing the infusion rate.

5. A client in labor is receiving IV Opioid analgesics. Which of the following actions should the nurse take?

Correct answer: B

Rationale: Offering oral hygiene every 2 hours is essential for a client receiving opioid analgesics to prevent dry mouth, nausea, and vomiting, which are common adverse effects associated with opioid use. This intervention promotes comfort and enhances the client's well-being during labor. Instructing the client to self-ambulate every 2 hours is not appropriate for a client in labor receiving opioid analgesics, as it may be challenging and unnecessary during this time. Anticipating medication administration 2 hours prior to delivery is not necessary as the timing of medication administration should be based on the client's pain level and the duration of action of the opioid. Monitoring fetal heart rate every 2 hours is important during labor, but the priority in this case is to address the client's comfort and well-being by offering oral hygiene.

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