ATI RN
ATI Pharmacology Proctored
1. Which of the following is the antidote for Heparin toxicity?
- A. Protamine
- B. Methylene blue
- C. N-acetylcysteine
- D. Glucagon
Correct answer: A
Rationale: Protamine is the specific antidote for Heparin toxicity. Heparin is an anticoagulant medication, and if an overdose occurs or if there is excessive bleeding due to Heparin use, protamine, a positively charged molecule, can neutralize the anticoagulant effects of Heparin by forming a complex with it. This binding prevents Heparin from further inhibiting coagulation factors and helps in reversing its effects.
2. A client has been prescribed a calcium channel blocker for angina. The nurse knows this medication should NOT be used with caution in combination with which drug classes?
- A. NSAIDs
- B. Cardiac glycosides
- C. Beta blockers
- D. None of the above
Correct answer: C
Rationale: Calcium channel blockers and beta blockers should be used with caution together because they can both suppress heart function, potentially leading to bradycardia, heart block, or heart failure. NSAIDs and cardiac glycosides do not have significant interactions with calcium channel blockers in the same way, so they are not typically a cause for concern when combined.
3. A client is receiving discharge instructions for a new prescription of Prednisone. Which of the following dietary instructions should be included?
- A. Increase your intake of potassium-rich foods.
- B. Increase your intake of dairy products.
- C. Avoid foods high in vitamin K.
- D. Decrease your intake of protein.
Correct answer: A
Rationale: When a client is prescribed Prednisone, there is a risk of potassium depletion due to the medication. Therefore, it is essential to increase the intake of potassium-rich foods such as bananas, oranges, and spinach to help maintain adequate potassium levels in the body and prevent complications associated with low potassium levels. Choice B and D are incorrect as there is no specific need to increase dairy products or decrease protein intake with Prednisone. Choice C is also incorrect as avoiding foods high in vitamin K is more relevant for clients taking anticoagulants like warfarin.
4. What is the classification of Ondansetron?
- A. Antihypertensive
- B. Antiarrhythmic
- C. Antiemetic
- D. Antiulcer agent
Correct answer: C
Rationale: Ondansetron is classified as an antiemetic. It is commonly used to prevent nausea and vomiting, especially in patients undergoing chemotherapy or surgery. Choice A, Antihypertensive, is incorrect as Ondansetron is not used to treat high blood pressure. Choice B, Antiarrhythmic, is incorrect as Ondansetron is not used to manage heart rhythm abnormalities. Choice D, Antiulcer agent, is incorrect as Ondansetron is not primarily indicated for treating ulcers.
5. Which of the following drugs is associated with the reaction of Cinchonism?
- A. Valproic acid
- B. Quinidine
- C. Isoniazid
- D. Ethosuximide
Correct answer: B
Rationale: Cinchonism is associated with Quinidine, not Valproic acid, Isoniazid, or Ethosuximide. Cinchonism is characterized by symptoms such as tinnitus, dizziness, and headaches. Quinidine, being an antiarrhythmic agent, can lead to this condition as a side effect.
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