ATI RN
ATI Pharmacology The Respiratory System Quizlet Questions
Question 1 of 5
In Fried's rule of dosage calculation, it is the number of months a child has reached an age when an adult dose can be tolerated>
Correct Answer: C
Rationale: In Fried's rule for dosage calculation, the formula is to divide the child's age in months by 150 to find the fraction of adult dose that can be tolerated. Generally, a child is considered to tolerate an adult dose when they have reached 12 months of age. This is based on the assumption that a 12-month-old child can typically tolerate a dose similar to that of an adult. Therefore, the correct answer is 12 months, which is option C.
Question 2 of 5
Which nonselective alpha-adrenergic blocking agent is still used?
Correct Answer: D
Rationale: Of the nonselective alpha-adrenergic blocking agents, only phentolamine is still used today. Metoprolol is a beta1-selective adrenergic blocking agent. Timolol and propranolol are nonselective beta-adrenergic blocking agents. The nurse should understand the indications for phentolamine to ensure safe and effective administration.
Question 3 of 5
What should the nurse include when teaching a patient regarding the use of omeprazole?
Correct Answer: B
Rationale: Omeprazole, a proton pump inhibitor (PPI), is most effective when taken 30 minutes before meals. This allows the medication to inhibit proton pumps during meal-stimulated acid production. Taking it after (A) or with meals (C) reduces its effectiveness. While it can be taken without regard to meals (D), taking it before meals is optimal.
Question 4 of 5
A client receiving azathioprine (Imuran) complains of hair loss. The nurse tells the client that?
Correct Answer: C
Rationale: Hair loss is a known but temporary side effect of azathioprine, an immunosuppressant used to treat autoimmune conditions. It occurs due to the drug's impact on rapidly dividing cells, including hair follicles. While distressing, this side effect is usually reversible once the medication is discontinued or the body adjusts to it. Hair loss is not typically a sign of toxicity, and reassuring the client about its temporary nature can help alleviate anxiety.
Question 5 of 5
Which of the following cytotoxic drugs is least likely to cause emesis during chemotherapy?
Correct Answer: D
Rationale: Emesis risk depends on chemotherapeutic emetogenicity. Cisplatin, dacarbazine, doxorubicin, and mustine are highly emetogenic, triggering vomiting via chemoreceptor zones. Vincristine, a vinca alkaloid, is least emetogenic, causing neuropathy instead, making it the exception. This lower risk reduces antiemetic needs, easing patient burden during treatment.