ATI RN
ATI Proctored Pharmacology 2023
1. What is the antidote for Heparin?
- A. Atropine
- B. Protamine sulfate
- C. Calcium carbonate
- D. Ferrous sulfate
Correct answer: B
Rationale: Protamine sulfate is the specific antidote used to reverse the effects of Heparin by binding to heparin and neutralizing its anticoagulant properties. It is crucial to administer Protamine sulfate promptly in cases of Heparin overdose or when immediate reversal of Heparin's effects is required to prevent bleeding complications. Atropine is not the antidote for Heparin; it is commonly used for treating bradycardia. Calcium carbonate is used to treat conditions like acid indigestion, heartburn, or calcium deficiency. Ferrous sulfate is a form of iron supplement used to treat or prevent iron deficiency anemia. None of these alternatives are antidotes for Heparin.
2. A healthcare professional is educating clients in an outpatient facility about the use of Insulin to treat type 1 Diabetes Mellitus. For which of the following types of insulin should the professional inform the clients to expect a peak effect 1 to 5 hr after administration?
- A. Insulin glargine
- B. NPH insulin
- C. Regular insulin
- D. Insulin lispro
Correct answer: C
Rationale: The correct answer is C, Regular insulin. Regular insulin, also known as short-acting insulin, typically exhibits a peak effect around 1 to 5 hours following administration. This rapid onset and peak effect make it suitable for managing postprandial glucose levels. Insulin glargine is a long-acting insulin with no pronounced peak effect, making it unsuitable for rapid glucose control within 1 to 5 hours. NPH insulin has an intermediate duration of action and a different peak time frame. Insulin lispro is a rapid-acting insulin that peaks within 30 minutes to 2.5 hours after administration, not within the 1 to 5-hour range.
3. Which of the following is classified as a class IA Sodium Channel blocker?
- A. Quinidine
- B. Disopyramide
- C. Aminodarone
- D. Propafenone
Correct answer: A
Rationale: Quinidine is classified as a class IA sodium channel blocker. Class IA antiarrhythmics, like quinidine, work by blocking sodium channels and delaying repolarization. Propafenone, mentioned in the original rationale, is actually a class IC antiarrhythmic agent, not a class IA sodium channel blocker.
4. A client has a new prescription for Levofloxacin. Which of the following instructions should be included in the discharge instructions?
- A. Take this medication with food.
- B. Avoid taking this medication with dairy products.
- C. Take this medication at bedtime.
- D. Increase your intake of potassium-rich foods.
Correct answer: B
Rationale: The correct answer is B: 'Avoid taking this medication with dairy products.' Levofloxacin should not be taken with dairy products because calcium can interfere with the absorption of the medication. It is recommended to take Levofloxacin 1 hour before or 2 hours after consuming dairy products to ensure optimal absorption and effectiveness of the medication. Choices A, C, and D are incorrect. Choice A is not recommended as Levofloxacin is usually taken on an empty stomach. Choice C is not necessary information for taking Levofloxacin. Choice D is unrelated to the administration of Levofloxacin.
5. Following a stroke, a client has been started on clopidogrel (Plavix). Why is this medication being administered?
- A. To prevent stroke in high-risk patients, such as those with prosthetic heart valves
- B. To decrease blood pressure
- C. To increase heart rate
- D. To provide antiplatelet activity in patients who cannot tolerate aspirin
Correct answer: D
Rationale: Clopidogrel (Plavix) is an antiplatelet medication that inhibits platelet aggregation, reducing the risk of blood clots. It is commonly used in patients who have had a stroke and cannot tolerate aspirin due to allergies or intolerances. Choosing clopidogrel in these cases helps prevent further clot formation and reduces the risk of recurrent strokes.
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