ATI RN
ATI Proctored Pharmacology Test
1. A client has anemia and a new prescription for ferrous sulfate liquid. Which of the following instructions should the nurse provide?
- A. Take the medication on an empty stomach to decrease gastrointestinal irritation.
- B. Take the medication with orange juice to enhance absorption.
- C. Take the medication with milk.
- D. Rinse the mouth before taking the iron.
Correct answer: B
Rationale: Taking ferrous sulfate with orange juice can help increase the absorption of iron. Orange juice contains vitamin C, which aids in the absorption of iron from the medication. This combination can enhance the effectiveness of the iron supplement for a client with anemia. Option A is incorrect because taking iron on an empty stomach can cause gastrointestinal upset. Option C is incorrect because calcium in milk can inhibit iron absorption. Option D is irrelevant to enhancing iron absorption.
2. 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.
3. A healthcare professional is reviewing laboratory results for a client who is receiving heparin via continuous IV infusion. Which of the following results indicates that the heparin infusion should be increased?
- A. aPTT of 90 seconds
- B. Platelet count of 150,000/mm³
- C. INR of 1.0
- D. Hgb of 15 g/dL
Correct answer: A
Rationale: An aPTT of 90 seconds is above the therapeutic range for heparin, which typically falls between 60-80 seconds. This indicates that the current heparin dose is too high, and the infusion rate should be decreased to avoid excessive anticoagulation and the risk of bleeding. Monitoring aPTT is crucial in adjusting heparin therapy to maintain it within the therapeutic range.
4. A client is receiving IV Dopamine for the treatment of shock. Which of the following findings indicates that the medication is effective?
- A. Increased heart rate
- B. Decreased blood pressure
- C. Increased urine output
- D. Decreased respiratory rate
Correct answer: C
Rationale: The correct answer is increased urine output. Dopamine increases cardiac output and improves renal perfusion, leading to increased urine output. This response indicates that the medication is effective in treating shock by enhancing renal function and perfusion. Choices A, B, and D are incorrect because an increased heart rate, decreased blood pressure, and decreased respiratory rate are not findings that indicate the effectiveness of IV Dopamine in treating shock.
5. A client has a prescription for Alendronate. Which of the following instructions should the nurse include?
- A. Take this medication before bed.
- B. Take the medication with food.
- C. Sit upright for at least 30 minutes after taking the medication.
- D. Expect to have frequent headaches while on this medication.
Correct answer: C
Rationale: The correct instruction for a client prescribed Alendronate is to sit upright for at least 30 minutes after taking the medication. Alendronate can cause esophageal irritation, and maintaining an upright position helps prevent this adverse effect by reducing the risk of reflux of the medication into the esophagus. Choice A is incorrect because Alendronate should be taken in the morning, at least 30 minutes before the first food, beverage, or medication of the day with a full glass of plain water. Choice B is incorrect because Alendronate should not be taken with food. Choice D is incorrect because frequent headaches are not a common side effect of Alendronate.
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