ATI RN
ATI Pharmacology Proctored Exam
1. 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.
2. A client with Addison's disease is being admitted for a total hip arthroplasty. The client takes hydrocortisone for Addison's disease. What is the nurse's priority action?
- A. Administering a supplemental dose of hydrocortisone
- B. Instructing the client about coughing and deep breathing
- C. Collecting additional information from the client about his history of Addison's disease
- D. Inserting an indwelling urinary catheter
Correct answer: A
Rationale: The nurse's priority in this situation is to administer a supplemental dose of hydrocortisone. Clients with Addison's disease taking hydrocortisone are at risk of acute adrenal insufficiency during times of stress such as surgery. Administering supplemental doses of hydrocortisone helps prevent acute adrenal insufficiency (adrenal crisis) in these situations, making it the priority action to ensure the client's safety. Instructing the client about coughing and deep breathing is important postoperatively but not the priority at this time. Collecting additional information about the client's history of Addison's disease is important but not the priority action before surgery. Inserting an indwelling urinary catheter is not the priority in this situation.
3. A drug ending in the suffix (navir) is considered a ______.
- A. Antidepressant
- B. Protease inhibitor
- C. Beta antagonist
- D. H antagonist
Correct answer: B
Rationale: When a drug name ends in the suffix -navir, it indicates that the drug is a protease inhibitor. Protease inhibitors are commonly used in antiviral therapy to treat infections by inhibiting viral replication. Therefore, the correct answer is B: Protease inhibitor.
4. A nurse is providing teaching to a client who has asthma and is beginning to take montelukast. Which of the following statements by the client indicates an understanding of the teaching?
- A. I will use this medication as a rescue inhaler during asthma attacks.
- B. I should take this medication once daily in the evening.
- C. I need to have my blood levels checked regularly while taking this medication.
- D. I should take this medication before exercising to prevent bronchospasm.
Correct answer: B
Rationale: Montelukast is typically taken once daily in the evening for long-term control of asthma symptoms. It helps prevent asthma attacks by reducing inflammation in the airways. While montelukast can also be used for exercise-induced bronchospasm in some cases, it is generally not a rescue medication and should be taken regularly, not on an as-needed basis.
5. A client with Atrial Fibrillation is prescribed Dabigatran to prevent Thrombosis. Which medication is prescribed concurrently to treat an adverse effect of Dabigatran?
- A. Vitamin K1
- B. Protamine
- C. Omeprazole
- D. Probenecid
Correct answer: C
Rationale: Omeprazole, a proton pump inhibitor, is prescribed for clients taking dabigatran who experience abdominal pain and other gastrointestinal adverse effects associated with dabigatran use. Proton pump inhibitors help manage these symptoms effectively. Choice A, Vitamin K1, is incorrect as it antagonizes the activity of Dabigatran, counteracting its anticoagulant effect. Choice B, Protamine, is used to reverse the anticoagulant effects of heparin, not dabigatran. Choice D, Probenecid, is not typically used to treat adverse effects of dabigatran.
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