ATI RN
ATI Pharmacology Proctored Exam 2019
1. When caring for a client prescribed Digoxin, which of the following laboratory values should the nurse monitor to assess for potential toxicity?
- A. Sodium
- B. Potassium
- C. Magnesium
- D. Calcium
Correct answer: B
Rationale: When a client is prescribed Digoxin, monitoring potassium levels is crucial as hypokalemia can increase the risk of Digoxin toxicity. Low potassium levels can potentiate the effects of Digoxin on the heart, leading to toxicity. Therefore, regular monitoring of potassium levels helps in preventing adverse effects and ensuring the safe use of Digoxin. Sodium, magnesium, and calcium levels are not directly associated with Digoxin toxicity; hence, they are not the primary focus for monitoring in this case.
2. A client with thrombophlebitis receiving heparin by continuous IV infusion asks the nurse how long it will take for the heparin to dissolve the clot. Which of the following responses should the nurse give?
- A. It usually takes heparin at least 2 to 3 days to reach a therapeutic blood level.
- B. A pharmacist is the person to answer that question.
- C. Heparin does not dissolve clots. It stops new clots from forming.
- D. The oral medication you will take after this IV will dissolve the clot.
Correct answer: C
Rationale: The correct response is C. Heparin does not dissolve clots; it prevents new clots from forming. Heparin works by inhibiting the formation of new clots and the extension of existing clots, rather than directly dissolving them. The client should be informed that the purpose of heparin therapy is to prevent the clot from getting larger and to reduce the risk of new clots forming. Choices A, B, and D are incorrect. Choice A talks about reaching a therapeutic blood level of heparin, which is not related to clot dissolution. Choice B deflects the question to a pharmacist without providing relevant information. Choice D inaccurately suggests that an oral medication will dissolve the clot, which is not the mechanism of action for heparin.
3. A client has a new prescription for Hydralazine. Which of the following side effects should the nurse instruct the client to monitor for and report?
- A. Orthostatic hypotension
- B. Increased heart rate
- C. Dark-colored urine
- D. Persistent cough
Correct answer: B
Rationale: Corrected Rationale: Hydralazine, a vasodilator, can cause reflex tachycardia, leading to an increased heart rate. This side effect should be reported to the healthcare provider to ensure appropriate management and monitoring of the client's condition. Choice A (Orthostatic hypotension) is incorrect as Hydralazine is more likely to cause reflex tachycardia than orthostatic hypotension. Choice C (Dark-colored urine) and Choice D (Persistent cough) are unrelated to the common side effects of Hydralazine and should not be the focus of monitoring for this medication.
4. A client has a new prescription for Metoprolol to treat hypertension. Which of the following instructions should the nurse include?
- A. Stop taking the medication if your heart rate is below 70/min.
- B. Take the medication with food.
- C. Avoid sudden changes in position.
- D. Increase your fluid intake while taking this medication.
Correct answer: C
Rationale: The correct instruction for a client starting Metoprolol is to avoid sudden changes in position. Metoprolol can cause orthostatic hypotension, leading to dizziness and falls if the client changes positions quickly. By advising the client to make position changes slowly, the nurse helps prevent these adverse effects and promotes safety.
5. A healthcare professional is preparing to administer a transfusion of 300 mL of pooled platelets for a client with severe Thrombocytopenia. How should the healthcare professional plan to administer the transfusion over which of the following time frames?
- A. Within 30 minutes/unit
- B. Within 60 minutes/unit
- C. Within 2 hours/unit
- D. Within 4 hours/unit
Correct answer: A
Rationale: Platelets are fragile components that must be administered promptly to minimize the risk of clumping. The correct administration time for platelets is within 15 to 30 minutes per unit to maintain their therapeutic effectiveness and reduce adverse effects. Administering platelets over longer time frames can lead to decreased efficacy and potential harm to the patient. Therefore, the correct answer is to administer the 300 mL of pooled platelets within 30 minutes per unit.
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