ATI RN
ATI Pharmacology
1. A patient is prescribed acetaminophen 650 mg PO every 6 hr PRN for pain. The available acetaminophen liquid is 500 mg/5 mL. How many mL should the nurse 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 nurse should administer 6.5 mL of acetaminophen liquid per dose to provide the prescribed 650 mg of acetaminophen. Choice B, 7 mL, is incorrect because the correct calculation results in 6.5 mL. Choice C, 5 mL, is incorrect as it is the concentration of the acetaminophen liquid, not the final volume needed. Choice D, 8 mL, is incorrect because it does not reflect the accurate calculation based on the prescription and concentration.
2. A school-age child has a new prescription for Atomoxetine. The nurse should monitor the client for which of the following adverse effects of this medication?
- A. Kidney toxicity
- B. Liver damage
- C. Seizure activity
- D. Adrenal insufficiency
Correct answer: B
Rationale: Liver damage is an adverse effect of Atomoxetine. The nurse should monitor for manifestations such as jaundice, upper abdominal tenderness, darkening of urine, and elevated liver enzymes. It is crucial to be vigilant for signs of liver damage to ensure early detection and intervention to prevent further complications. Kidney toxicity is not a common adverse effect of Atomoxetine. Seizure activity and adrenal insufficiency are also not typically associated with this medication.
3. During discharge instructions, a client with a new prescription for Phenytoin should be advised to take which of the following actions?
- A. Brush and floss your teeth regularly.
- B. Avoid drinking grapefruit juice.
- C. Take this medication on an empty stomach.
- D. Increase your intake of calcium-rich foods.
Correct answer: A
Rationale: The correct instruction for a client with a new prescription for Phenytoin is to brush and floss their teeth regularly. Phenytoin is known to cause gingival hyperplasia, a condition that affects the gums. By maintaining good oral hygiene practices such as regular brushing and flossing, the client can help minimize the risk of developing this side effect. Choices B, C, and D are incorrect. Avoiding grapefruit juice is more relevant for medications affected by grapefruit juice metabolism, taking medication on an empty stomach is not specifically indicated for Phenytoin, and increasing calcium-rich foods is not directly related to the side effects or administration of Phenytoin.
4. A client has a new prescription for Amlodipine. Which of the following instructions should the nurse include during discharge teaching?
- A. Take the medication at bedtime.
- B. Avoid drinking grapefruit juice.
- C. Increase your intake of high-sodium foods.
- D. Expect a dry cough.
Correct answer: B
Rationale: The correct instruction for the nurse to include during discharge teaching is to advise the client to avoid drinking grapefruit juice. Grapefruit juice can inhibit the metabolism of amlodipine, a calcium channel blocker, leading to increased drug levels in the blood. This can result in potentiated side effects and potential toxicity. Option A is incorrect as amlodipine is usually taken once daily, not specifically at bedtime. Option C is incorrect because high-sodium foods are generally discouraged in individuals with hypertension. Option D is incorrect as a dry cough is not an expected side effect of amlodipine.
5. What is the pharmacological class of Lithium?
- A. Antidiabetics, biguanides
- B. Mood stabilizers
- C. Antiarrhythmics, anticonvulsants
- D. Vascular headache suppressants
Correct answer: B
Rationale: Lithium is classified as a mood stabilizer due to its primary use in managing bipolar disorder, where it helps stabilize mood swings and prevent episodes of mania and depression. While it can have other effects on the body, its main therapeutic role lies in its mood-stabilizing properties. Choices A, C, and D are incorrect as lithium is not classified as antidiabetics, biguanides, antiarrhythmics, anticonvulsants, or vascular headache suppressants. Its main pharmacological class is mood stabilizers.
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