ATI RN
ATI Capstone Pharmacology Assessment 2 Questions
Question 1 of 5
The drug Ondansetron action is?
Correct Answer: C
Rationale: Ondansetron is a medication commonly used to prevent nausea and vomiting, particularly in patients receiving chemotherapy or undergoing surgery. Its mechanism of action involves blocking the effects of serotonin, specifically by antagonizing serotonin 5-HT3 receptors in the chemoreceptor trigger zone of the brain and the gastrointestinal tract. By inhibiting serotonin signaling, ondansetron helps to alleviate nausea and vomiting in affected individuals. This action is distinct from the other options provided, making option C the correct answer for the drug Ondansetron.
Question 2 of 5
The basic metric unit for the measurement of volume :
Correct Answer: C
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 3 of 5
If a bacteria were susceptible to both penicillin and erythromycin, then it would not be appropriate to treat the patients with both antibiotics at the same time because:
Correct Answer: A
Rationale: Penicillin is inactivated by erythromycin. Penicillin is a beta-lactam antibiotic which acts by inhibiting cell wall synthesis in bacteria. However, erythromycin is a macrolide antibiotic which can inactivate beta-lactam antibiotics like penicillin. When given together, erythromycin can inactivate penicillin, reducing its efficacy and potentially leading to treatment failure. Therefore, it is not appropriate to use both penicillin and erythromycin simultaneously to treat a bacterial infection.
Question 4 of 5
A patient undergoing chemotherapy for breast cancer asks why she is not receiving trastuzumab like her sister. Which response by the nurse is correct?
Correct Answer: D
Rationale: Trastuzumab is a targeted therapy used specifically for HER2-positive breast cancer. If the patient's cancer cells do not overexpress the HER2 receptor, trastuzumab will not be effective. The decision to use targeted therapy is based on the molecular characteristics of the tumor, not the patient's age, insurance coverage, or estrogen receptor status. The nurse should explain that targeted therapies are tailored to the specific biology of the cancer, and trastuzumab is only appropriate for HER2-positive tumors.
Question 5 of 5
Upon preparing to administer activated charcoal by mouth to treat a patient who took an overdose of aspirin and several unknown drugs, the nurse notes that the patient has become very somnolent and eyes open only to a noxious stimulus. Which action by the nurse is most appropriate at this point?
Correct Answer: A
Rationale: The patient's decreased level of consciousness (somnolence and only responding to noxious stimuli) indicates a potential deterioration in their condition, possibly due to the overdose. Activated charcoal is contraindicated in patients with an altered mental status due to the risk of aspiration. The nurse should immediately consult the nurse practitioner to reassess the patient's condition and determine the appropriate intervention, such as securing the airway or considering alternative treatments.