ATI RN
ATI Pharmacology
1. A healthcare professional is preparing to administer acetaminophen 650 mg PO every 6 hr PRN for pain. The amount available is acetaminophen liquid 500 mg/5 mL. How many mL should the healthcare professional 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 healthcare professional should administer 6.5 mL of acetaminophen per dose to achieve the desired 650 mg dose for pain relief. Choice A is correct because it accurately calculates the volume required based on the concentration of the liquid acetaminophen. Choices B, C, and D are incorrect as they do not reflect the correct calculation based on the concentration of the liquid medication and the desired dose.
2. A healthcare professional is reviewing the medication list of a client who has a new prescription for Metformin to treat type 2 diabetes. Which of the following medications should the healthcare professional identify as placing the client at risk for lactic acidosis?
- A. Metformin
- B. Metoprolol
- C. Lisinopril
- D. Insulin
Correct answer: A
Rationale: Metformin is known to have a risk of causing lactic acidosis, particularly in clients with renal impairment or predisposing conditions. Lactic acidosis is a rare but serious adverse effect of metformin use that can be life-threatening. Metoprolol, Lisinopril, and Insulin do not have a known association with lactic acidosis. Healthcare professionals should monitor clients prescribed metformin carefully, especially those with risk factors, to detect and manage lactic acidosis promptly.
3. A client has a new prescription for Verapamil to treat angina. Which of the following client statements should indicate to the nurse that the client is experiencing an adverse effect of Verapamil?
- A. I am constipated frequently.
- B. I have been urinating more frequently.
- C. My skin is peeling.
- D. I have ringing in my ears.
Correct answer: A
Rationale: Constipation is a common adverse effect of Verapamil, a calcium channel blocker. Verapamil can slow down bowel movements and lead to constipation as a side effect. Therefore, the client reporting frequent constipation should alert the nurse to a potential adverse effect of Verapamil. Choices B, C, and D are not typically associated with Verapamil use. Increased urination is not a common side effect of Verapamil, peeling skin is more likely related to a dermatological issue, and ringing in the ears is not a known adverse effect of Verapamil.
4. A healthcare professional is preparing to administer Haloperidol 2 mg PO every 12 hr. The available medication is haloperidol 1 mg/tablet. How many tablets should the healthcare professional administer?
- A. 1 tablet
- B. 2 tablets
- C. 3 tablets
- D. 4 tablets
Correct answer: B
Rationale: To calculate the number of tablets needed, divide the desired dose by the dose per tablet. In this case, (2 mg / 1 mg/tablet) = 2 tablets required to administer the correct dosage of Haloperidol.
5. A client with increased intracranial pressure is receiving Mannitol. Which finding should the nurse report to the provider?
- A. Blood glucose 150 mg/dL
- B. Urine output 40 mL/hr
- C. Dyspnea
- D. Bilateral equal pupil size
Correct answer: C
Rationale: The correct answer is C: Dyspnea. Dyspnea is a concerning finding in a client receiving Mannitol as it can be a manifestation of heart failure, which is an adverse effect of the medication. The nurse should promptly notify the provider, discontinue the Mannitol, and initiate appropriate interventions to address the dyspnea and monitor the client's condition closely. Choice A, Blood glucose of 150 mg/dL, is within normal limits and not directly related to Mannitol administration. Choice B, Urine output of 40 mL/hr, could indicate decreased renal perfusion, but it is not the most critical finding compared to dyspnea. Choice D, Bilateral equal pupil size, is a normal neurological finding and not directly related to Mannitol therapy.
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