ATI RN
ATI Pharmacology Proctored
1. Which of the following is the antidote for Heparin toxicity?
- A. Protamine
- B. Methylene blue
- C. N-acetylcysteine
- D. Glucagon
Correct answer: A
Rationale: Protamine is the specific antidote for Heparin toxicity. Heparin is an anticoagulant medication, and if an overdose occurs or if there is excessive bleeding due to Heparin use, protamine, a positively charged molecule, can neutralize the anticoagulant effects of Heparin by forming a complex with it. This binding prevents Heparin from further inhibiting coagulation factors and helps in reversing its effects.
2. 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.
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 client's serum Calcium is 8.8 mg/dL. Which of the following medications should the nurse anticipate administering to this client?
- A. Calcitonin-salmon
- B. Calcium carbonate
- C. Zoledronic acid
- D. Ibandronate
Correct answer: B
Rationale: The client's serum calcium level is below the expected reference range. In this case, the appropriate medication to anticipate administering is Calcium carbonate, an oral form of calcium used to increase serum calcium levels to the expected reference range.
5. A client has a new prescription for Ranitidine. Which of the following instructions should the nurse include?
- A. Take the medication with an antacid.
- B. Avoid drinking coffee while taking this medication.
- C. Take the medication at bedtime.
- D. Stop the medication if you develop a headache.
Correct answer: C
Rationale: The correct instruction for a client prescribed Ranitidine is to take the medication at bedtime. Ranitidine is best taken at night to reduce nighttime stomach acid production, providing optimal relief for conditions like gastroesophageal reflux disease (GERD) and ulcers.
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