ATI RN
ATI Pharmacology Test Bank
1. 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.
2. How can the nurse best explain the difference between angina and a myocardial infarction to a client presenting with severe chest pain?
- A. “Angina usually resolves with rest, and is rarely fatal, while a myocardial infarction necessitates immediate treatment and can be life-threatening.”
- B. “There is a clear distinction between the two. You will receive treatment based on the diagnosis of a myocardial infarction.”
- C. “Both conditions result from a clot obstructing the coronary arteries. Angina occurs with the blockage of a small vessel, whereas a myocardial infarction occurs with a blockage of a large vessel.”
- D. “Angina may not cause as intense chest pain, whereas a myocardial infarction always presents with severe chest pain.”
Correct answer: A
Rationale: When educating a client about the differences between angina and a myocardial infarction, it is crucial to emphasize key distinguishing factors. Angina typically improves with rest and is not usually life-threatening, whereas a myocardial infarction requires urgent intervention as it can be life-threatening. This explanation helps the client understand the urgency and severity associated with a myocardial infarction compared to angina.
3. A client received IV Verapamil to treat supraventricular tachycardia (SVT). The client's pulse rate is now 98/min, and blood pressure is 74/44 mm Hg. The nurse should anticipate a prescription for which of the following IV medications?
- A. Calcium gluconate
- B. Sodium bicarbonate
- C. Potassium chloride
- D. Magnesium sulfate
Correct answer: A
Rationale: In this situation, where the client's blood pressure is significantly lowered due to Verapamil administration, the nurse should anticipate a prescription for Calcium gluconate. Calcium gluconate is used to reverse severe hypotension caused by Verapamil. It should be given slowly intravenously as it counteracts the vasodilation caused by Verapamil, helping to normalize blood pressure levels. Sodium bicarbonate is not indicated for low blood pressure. Potassium chloride and magnesium sulfate are not the appropriate choices to address hypotension caused by Verapamil.
4. A client has a new prescription for Digoxin. Which of the following instructions should the nurse include?
- A. Increase your intake of bran fiber.
- B. Monitor your heart rate before taking the medication.
- C. Take the medication with antacids.
- D. Avoid drinking orange juice.
Correct answer: B
Rationale: When a client is prescribed Digoxin, it is essential to monitor their heart rate before each dose. Changes such as a heart rate below 60 bpm should be reported to the healthcare provider promptly. This is crucial because Digoxin can affect heart rhythm, and monitoring the heart rate helps in identifying any potential issues early on.
5. A client in labor is receiving IV Opioid analgesics. Which of the following actions should the nurse take?
- A. Instruct the client to self-ambulate every 2 hours.
- B. Offer oral hygiene every 2 hours.
- C. Anticipate medication administration 2 hours prior to delivery.
- D. Monitor fetal heart rate every 2 hours.
Correct answer: B
Rationale: When a client is receiving IV Opioid analgesics during labor, the nurse should offer oral hygiene every 2 hours. Opioid analgesics can cause adverse effects like dry mouth, nausea, and vomiting. Providing oral hygiene care helps alleviate these symptoms and maintains the client's comfort and well-being during labor. Instructing the client to self-ambulate every 2 hours is not appropriate during labor as mobility may be limited. Anticipating medication administration 2 hours prior to delivery is not necessary as the timing of medication administration should be based on the client's needs and the progress of labor. Monitoring fetal heart rate every 2 hours is important during labor, but it is not specifically related to the client receiving IV Opioid analgesics.
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