ATI RN
ATI Pharmacology Study Guide Questions
Question 1 of 5
Some institutions will not infuse a fat emulsion, such as Intralipid, into central venous access devices
Correct Answer: B
Rationale: Some institutions will not infuse a fat emulsion, such as Intralipid, into central venous access devices because lipid residue may accumulate in the CVAD and occlude the catheter. This can lead to complications such as catheter blockage, which may require removal and replacement of the catheter. The build-up of lipids in the catheter can interfere with proper medication delivery and potentially result in infection or other issues.
Therefore, to prevent these complications, some institutions choose to avoid infusing fat emulsions through central venous access devices.
Question 2 of 5
A patient is hypokalemic and will be receiving IV potassium. The patient is not on a heart monitor. How should the nurse administer the potassium replacement?
Correct Answer: C
Rationale: When administering IV potassium replacement to a hypokalemic patient who is not on a heart monitor, it is crucial to prevent rapid infusion that may lead to dangerous cardiac complications such as arrhythmias or cardiac arrest. The general guideline is to administer no more than 20 mEq/hour of potassium when the patient is not on continuous cardiac monitoring. This rate allows the body to tolerate the infusion more safely and reduces the risk of serious adverse effects. It is essential for the nurse to closely monitor the patient's response to the potassium replacement and adjust the rate if necessary based on the patient's condition and any signs of potassium-related complications.
Question 3 of 5
When teaching a patient who is beginning antilipemic therapy about possible drug-food interactions, the nurse will discuss which food?
Correct Answer: B
Rationale: The nurse will discuss grapefruit juice when teaching a patient about possible drug-food interactions with antilipemic therapy. Grapefruit juice can inhibit the enzyme CYP3A4 in the liver, which can affect the metabolism of certain medications, including some antilipemic drugs. This interaction may lead to increased drug levels in the bloodstream, potentially causing harmful side effects. It is important for patients to be aware of this interaction and to consult their healthcare provider if they consume grapefruit juice while on antilipemic therapy.
Question 4 of 5
Intravenous (IV) therapy is ordered for a patient with a serum sodium of 150 mEq/L. Which of the following does the nurse anticipate administering?
Correct Answer: A
Rationale: In a patient with a high serum sodium level (hypernatremia), the goal of treatment is to gradually decrease the sodium concentration in the body to prevent complications. Isotonic solutions (0.9% NS or LR) can worsen hypernatremia because they have a higher sodium concentration than the patient's current serum sodium level. Hypotonic solutions, such as 0.45% NS, are typically used to treat hypernatremia because they have a lower sodium concentration than the patient's serum sodium, which helps dilute the sodium in the body and lower the serum sodium level back to a normal range.
Therefore, in this case, the nurse would anticipate administering 0.45% NS to the patient with a serum sodium level of 150 mEq/L.
Question 5 of 5
A patient tells the nurse that he likes to eat large amounts of garlic to help lower his cholesterol levels naturally. The nurse reviews his medication history and notes that which drug has a potential interaction with the garlic?
Correct Answer: B
Rationale: Garlic is known to have antiplatelet and anticoagulant properties. When taken in large amounts, garlic can enhance the effects of anticoagulant medications like warfarin (Coumadin), which can increase the risk of bleeding.
Therefore, it is crucial for patients on warfarin therapy to avoid consuming excessive amounts of garlic or garlic supplements to prevent potential interactions and complications.