ATI RN
ATI Pharmacology Proctored Exam 2019
1. A healthcare provider plans to administer Morphine IV to a postoperative client. Which of the following actions should the provider take?
- A. Monitor for seizures and confusion with repeated doses.
- B. Protect the client's skin from severe diarrhea associated with morphine.
- C. Withhold this medication if the respiratory rate is less than 12/min.
- D. Administer Morphine intermittently via IV bolus over 30 seconds or less.
Correct answer: C
Rationale: The correct action for the provider is to withhold morphine if the client's respiratory rate is 12/min or less. Respiratory depression is a serious side effect of morphine and other opioids. Withholding the medication and informing the healthcare provider is essential to prevent further respiratory compromise in the client. Choices A, B, and D are incorrect because monitoring for seizures and confusion, protecting the client's skin from severe diarrhea, and administering morphine via IV bolus over 30 seconds or less are not the primary actions to ensure client safety when administering morphine IV. Respiratory status is crucial due to the risk of respiratory depression associated with opioid administration.
2. A client in the post-anesthesia recovery unit received a nondepolarizing neuromuscular blocking agent and has muscle weakness. The nurse should anticipate a prescription for which of the following medications?
- A. Neostigmine
- B. Naloxone
- C. Dantrolene
- D. Vecuronium
Correct answer: A
Rationale: Neostigmine is a cholinesterase inhibitor commonly used to reverse the effects of nondepolarizing neuromuscular blockers, such as the one the client received. It works by inhibiting the breakdown of acetylcholine, thereby enhancing neuromuscular transmission and reversing muscle weakness caused by the neuromuscular blocking agent.
3. A child is prescribed Amoxicillin 20 mg/kg/day PO to be administered every 12 hr. The child weighs 44 lb. The available medication is amoxicillin suspension 250 mg/5 mL. How many mL should be given per dose?
- A. 4 mL
- B. 5 mL
- C. 6 mL
- D. 3 mL
Correct answer: A
Rationale: To calculate the dosage per administration: Convert the weight to kg (44 lb / 2.2 lb/kg = 20 kg). Then, (20 mg/kg/day x 20 kg) / 2 (for every 12 hr dosing) = 200 mg per dose. (200 mg / 250 mg) x 5 mL = 4 mL per dose. Therefore, the nurse should administer 4 mL of amoxicillin suspension per dose. Choice B, 5 mL, is incorrect because the calculation shows that 4 mL is the correct dose. Choices C and D are also incorrect as they are not in line with the calculated dosage based on the weight of the child and the concentration of the medication.
4. A healthcare provider is reviewing the medical history of a client who is scheduled for surgery and takes Warfarin daily. Which of the following laboratory results should the healthcare provider monitor?
- A. Potassium level
- B. INR
- C. BUN
- D. Platelet count
Correct answer: B
Rationale: The INR (International Normalized Ratio) is the most important lab value to monitor in a client taking warfarin. Warfarin is an anticoagulant, and the INR reflects the effectiveness of anticoagulation therapy. Monitoring the INR helps ensure the client is within the therapeutic range to prevent both clotting and bleeding complications.
5. When educating a client who has a prescription for Propranolol, what instruction should the healthcare provider include?
- A. Take this medication with food.
- B. Discontinue the medication if you feel fatigued.
- C. Expect to have decreased heart rate with this medication.
- D. Do not stop taking this medication abruptly.
Correct answer: D
Rationale: The correct instruction for a client with a prescription for Propranolol is not to stop taking the medication abruptly. Abrupt cessation can result in rebound hypertension or other cardiac complications. It is crucial for the client to taper off the medication gradually under healthcare provider supervision to prevent adverse effects. Choice A is incorrect because Propranolol can be taken with or without food. Choice B is incorrect as discontinuing the medication based on fatigue alone is not advisable without consulting a healthcare provider. Choice C is incorrect because while Propranolol can decrease heart rate, it is not the primary instruction to provide in this scenario.
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