ATI RN
Practice ATI B Exam Pharmacology Questions
Question 1 of 5
What's the normal range for therapeutic serum digoxin levels?
Correct Answer: A
Rationale: The normal range for therapeutic serum digoxin levels is typically considered to be 0.5-2 ng/mL. This range is where the drug digoxin effectively treats heart conditions such as atrial fibrillation and heart failure without causing toxicity. Levels below 0.5 ng/mL may be subtherapeutic, while levels above 2 ng/mL can lead to digoxin toxicity, characterized by symptoms like nausea, vomiting, visual disturbances, and cardiac arrhythmias. Regular monitoring of serum digoxin levels is essential to ensure the drug is being used safely and effectively.
Question 2 of 5
It is a measure of drug activity in terms of the amount required to produce an effect.
Correct Answer: C
Rationale: Potency refers to the measure of drug activity in terms of the amount required to produce a particular effect. It is the strength or concentration of a drug that is needed to produce a specific effect. Potency is often expressed as the dose of a drug required to produce a certain response compared to a standard reference dose. It is an essential consideration in pharmacology as it helps determine the appropriate dosage needed for therapeutic effects and to avoid potential toxicity. Potency is distinct from efficacy, which is the ability of a drug to produce a desired effect regardless of the dose.
Question 3 of 5
A patient who has been diagnosed with social anxiety disorder will begin taking venlafaxine(Effexor). The nurse who performs a medication and dietary history will be concerned about ingestion of which substance or drug?
Correct Answer: D
Rationale: St. John's wort is an herbal supplement known to interact with many medications, including venlafaxine (Effexor). It can reduce the effectiveness of venlafaxine by increasing its metabolism and clearance from the body, potentially leading to decreased therapeutic effects. Therefore, patients taking venlafaxine for social anxiety disorder should be advised to avoid St. John's wort to prevent any negative interactions and ensure the medication works effectively. It is essential for the nurse to inquire about the use of St. John's wort during the medication and dietary history assessment to prevent such interactions.
Question 4 of 5
The nurse is caring for a patient who is receiving an adrenergic blocking agent. While writing the care plan for this patient what nursing diagnoses would be most appropriate concerning comfort?
Correct Answer: A
Rationale: All four options would be appropriate nursing diagnoses for a patient receiving an adrenergic blocking agent. However, acute pain would be the only nursing diagnosis related to the patient’s comfort level. The nurse should address pain management as a priority to improve the patient’s quality of life and adherence to treatment.
Question 5 of 5
The nurse is doing preconception counseling with a patient. The patient asks why she must take folic acid (folate) during pregnancy. What is the nurse's response?
Correct Answer: A
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.