ATI RN
ATI Pharmacology Proctored Exam
1. A healthcare professional is planning to administer IV Alteplase to a client who is demonstrating manifestations of a massive Pulmonary Embolism. Which of the following interventions should the healthcare professional plan to take?
- A. Administer IM Enoxaparin along with the Alteplase dose.
- B. Hold direct pressure on puncture sites for up to 30 min.
- C. Administer Aminocaproic acid IV prior to alteplase infusion.
- D. Prepare to administer Alteplase within 8 hr of manifestation onset.
Correct answer: B
Rationale: The correct intervention when administering IV Alteplase is to hold direct pressure on puncture sites for 10 to 30 minutes or until oozing of blood stops. This helps prevent bleeding complications associated with thrombolytic therapy. Administering IM Enoxaparin is not indicated with Alteplase, as it is an anticoagulant rather than a thrombolytic agent. Aminocaproic acid is not typically administered prior to alteplase infusion in the context of a massive Pulmonary Embolism. While timely administration of Alteplase is important, the specific timeframe within which it should be administered may vary based on the clinical situation, so a strict 8-hour window is not universally applicable.
2. What is the antidote for Heparin?
- A. Protamine sulfate
- B. Narcan
- C. Romazicon
- D. Naloxone
Correct answer: A
Rationale: The correct answer is A: Protamine sulfate. Heparin is an anticoagulant medication used to prevent blood clots. In cases of overdose or excessive bleeding due to Heparin, protamine sulfate is administered as the specific antidote. Protamine sulfate works by neutralizing Heparin's anticoagulant activity. Choices B, C, and D are incorrect. Narcan (Naloxone) is used to reverse opioid overdose, Romazicon (Flumazenil) is used to reverse benzodiazepine overdose, and Naloxone is also used to reverse opioid overdose but is not the antidote for Heparin.
3. 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.
4. A client with angina is seeking a prescription for sildenafil to manage erectile dysfunction. Which of the following medications is contraindicated with Sildenafil?
- A. Aspirin
- B. Isosorbide
- C. Clopidogrel
- D. Atorvastatin
Correct answer: B
Rationale: Isosorbide, an organic nitrate used for angina, is contraindicated with sildenafil due to the risk of fatal hypotension. Concurrent use of these medications can lead to severe hypotension. Patients are advised to avoid taking nitrate medications for 24 hours after using isosorbide to prevent this dangerous interaction.
5. A client has a new prescription for erythromycin. Which of the following statements by the client indicates an understanding of the teaching?
- A. I should take this medication with a full glass of water.
- B. I should avoid direct sunlight while taking this medication.
- C. I will take this medication on an empty stomach.
- D. I should take an antacid 30 minutes before taking this medication.
Correct answer: C
Rationale: The correct answer is C. Erythromycin should be taken on an empty stomach with a full glass of water to increase absorption. Taking it with a full glass of water (Choice A) is incorrect. Avoiding direct sunlight (Choice B) is not related to erythromycin use. Taking an antacid before the medication (Choice D) can interfere with its absorption.
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