ATI RN
ATI Pharmacology Proctored Exam 2023
1. While caring for a client receiving Heparin therapy, which of the following laboratory tests should the nurse monitor to evaluate the effectiveness of the therapy?
- A. PT
- B. INR
- C. aPTT
- D. Platelet count
Correct answer: C
Rationale: The nurse should monitor the aPTT (activated partial thromboplastin time) when caring for a client receiving Heparin therapy. The aPTT reflects the intrinsic pathway of the clotting cascade and is used to monitor the effectiveness of heparin, which primarily affects this pathway by potentiating antithrombin III. Monitoring the aPTT helps ensure that the client's blood is within the therapeutic range to prevent thrombus formation. Choices A, B, and D are incorrect. PT (Prothrombin Time) and INR (International Normalized Ratio) are used to monitor Warfarin therapy, not Heparin. Platelet count is important in assessing for thrombocytopenia but is not a specific indicator of Heparin therapy effectiveness.
2. Which of the following conditions is not treated with epinephrine?
- A. Renal disease
- B. Asthma
- C. Hypotension
- D. Glaucoma
Correct answer: A
Rationale: Epinephrine is not used to treat renal disease. Epinephrine is commonly used to treat conditions like asthma, hypotension, and glaucoma, but it is not an appropriate treatment for renal disease. Renal disease requires specific management strategies that do not involve the use of epinephrine.
3. A nurse is providing instructions to a client who has a prescription for Amoxicillin and Clarithromycin to treat a Peptic Ulcer. Which of the following information should the nurse include in the teaching?
- A. Take these medications with foo '
- B. These medications can turn your stool black.'
- C. These medications can cause photosensitivity.'
- D. The purpose of these medications is to decrease the pH of gastric juices in the stomach.'
Correct answer: A
Rationale: The nurse should instruct the client to take these medications with food to reduce GI disturbances.
4. A nurse is providing discharge teaching to a client who has a new prescription for Warfarin. Which of the following statements should the nurse include?
- A. You should avoid taking aspirin for headaches while on this medication.
- B. You should use a soft toothbrush to brush your teeth.
- C. You should avoid foods that are rich in vitamin K.
- D. You should avoid prolonged exposure to sunlight.
Correct answer: B
Rationale: The correct statement to include in discharge teaching for a client prescribed Warfarin is to use a soft toothbrush to prevent gum bleeding. Warfarin is an anticoagulant that increases the risk of bleeding, so using a soft toothbrush can help prevent gum injury and bleeding. Choice A is incorrect because aspirin, another blood-thinning medication, should generally be avoided while on Warfarin to reduce the risk of bleeding. Choice C is incorrect because clients on Warfarin should maintain a consistent intake of vitamin K-rich foods rather than avoid them completely. Choice D is unrelated to the medication and not a priority teaching point for a client prescribed Warfarin.
5. A client with end-stage cancer receiving Morphine has been prescribed Methylnaltrexone. The client's daughter asks about the purpose of Methylnaltrexone. Which response should the nurse provide?
- A. The medication will increase your mother's respirations.
- B. The medication will prevent dependence on the Morphine.
- C. The medication will relieve your mother's constipation.
- D. The medication works with the Morphine to increase pain relief.
Correct answer: C
Rationale: Methylnaltrexone is an opioid antagonist used to treat severe constipation unresponsive to laxatives in opioid-dependent clients. It functions by blocking the mu opioid receptors in the gastrointestinal tract, helping alleviate constipation associated with opioid use. Choices A, B, and D are incorrect. Methylnaltrexone does not increase respirations, prevent dependence on Morphine, or work with Morphine to increase pain relief; its primary purpose is to relieve opioid-induced constipation.
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