ATI RN
ATI Pharmacology Proctored Exam 2023
1. A client is prescribed an IM dose of penicillin. The client reports developing a rash after taking penicillin 3 years ago. What should the nurse do?
- A. Administer the prescribed dose.
- B. Withhold the medication.
- C. Ask the provider to change the prescription to an oral form.
- D. Administer an oral antihistamine at the same time.
Correct answer: B
Rationale: The nurse should withhold the medication and inform the provider of the client's previous rash after taking penicillin. This history suggests a potential allergic reaction to penicillin, which can range from mild to severe anaphylaxis. Notifying the provider allows for an alternative antibiotic to be prescribed, considering the client's allergy to penicillin. It is crucial to avoid administering a medication that could potentially lead to a severe allergic reaction in the client. Administering the prescribed dose (Choice A) could be harmful due to the potential for an allergic reaction. Changing the prescription to an oral form (Choice C) does not address the underlying issue of a potential penicillin allergy. Administering an oral antihistamine (Choice D) without consulting the provider may not be sufficient to prevent a severe allergic reaction.
2. A healthcare professional is preparing to administer acetaminophen 650 mg PO every 6 hr PRN for pain. The amount available is acetaminophen liquid 500 mg/5 mL. How many mL should the healthcare professional administer per dose?
- A. 6.5 mL
- B. 7 mL
- C. 5 mL
- D. 8 mL
Correct answer: A
Rationale: To calculate the volume to administer: (Desired dose / Concentration) = Volume to administer. In this case, (650 mg / 500 mg) x 5 mL = 6.5 mL. Therefore, the healthcare professional should administer 6.5 mL of acetaminophen per dose to achieve the desired 650 mg dose for pain relief. Choice A is correct because it accurately calculates the volume required based on the concentration of the liquid acetaminophen. Choices B, C, and D are incorrect as they do not reflect the correct calculation based on the concentration of the liquid medication and the desired dose.
3. A client is taking lisinopril. Which of the following outcomes indicates a therapeutic effect of the medication?
- A. Decreased blood pressure
- B. Increase in HDL cholesterol
- C. Prevention of bipolar manic episodes
- D. Improved sexual function
Correct answer: A
Rationale: The therapeutic effect of lisinopril, an ACE inhibitor, is indicated by a decrease in blood pressure. Lisinopril works by relaxing blood vessels, leading to a reduction in blood pressure. Monitoring and achieving a decrease in blood pressure is a key outcome when managing hypertension with lisinopril. Choices B, C, and D are incorrect because lisinopril is not intended to increase HDL cholesterol, prevent bipolar manic episodes, or improve sexual function. Therefore, the correct outcome indicating the therapeutic effect of lisinopril is a decrease in blood pressure.
4. When a client is receiving treatment with methotrexate, which supplement should the nurse instruct the client to take?
- A. Folic acid
- B. Vitamin D
- C. Calcium
- D. Iron
Correct answer: A
Rationale: Folic acid supplementation is crucial for clients undergoing methotrexate treatment because methotrexate functions as a folic acid antagonist. By supplementing with folic acid, the risk of methotrexate toxicity can be minimized, improving the treatment's effectiveness and safety. Vitamin D, calcium, and iron are not specifically recommended in conjunction with methotrexate therapy and may not provide the same protective benefits as folic acid.
5. When a client has a new prescription for Dextromethorphan to suppress a cough, what adverse effect should they monitor for according to the nurse's instruction?
- A. Diarrhea
- B. Anxiety
- C. Sedation
- D. Palpitations
Correct answer: C
Rationale: The correct answer is C: Sedation. Dextromethorphan can lead to sedation as an adverse effect. The nurse should advise the client to avoid activities that require alertness when taking this medication to prevent any potential harm. Monitoring for sedation is crucial to ensure the client's safety and well-being. Choices A, B, and D are incorrect as diarrhea, anxiety, and palpitations are not commonly associated with Dextromethorphan use. While some individuals may experience gastrointestinal upset, central nervous system effects like sedation are more commonly observed.
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