NURS 6521N Week 2 Quiz 2 - Question and Answers

• Question 1 1 out of 1 points Which of the following patients should be advised by the nurse to avoid over-the-counter cold and allergy preparations that contain phenylephrine? Response Feedback: Phenylephrine is an alpha-1 adrenergic agonist and a drug commonly used topically for relief of nasal and nasopharyngeal mucosal congestion and to produce mydriasis for ophthalmologic procedures. Phenylephrine acts as a vasopressor causing vasoconstriction of the arterioles. The vasoconstriction from phenylephrine use can increase peripheral resistance and blood pressure. People with hypertension should not take over-the-counter cold and allergy preparations containing phenylephrine because it can further increase their already elevated blood pressure. Patients with diabetes and gout have not been identified as being at risk for adverse reactions from the use of phenylephrine. A patient with an upper respiratory infection may actually benefit from use of the drug. • Question 2 1 out of 1 points Which of the following serves to protect the public by ensuring the purity of a drug and its contents? Response Feedback: Federal legislation serves to protect the public from drugs that are impure, toxic, ineffective, or improperly tested prior to marketing. The primary purpose of federal legislation is to ensure safety. The United States Adopted Names Council was established to ensure uniform drug nomenclature. The official name of each drug is published in the United States Pharmacopeia and the National Formulary. The American Pharmaceutical Association does not ensure the safety and purity of drug content but is a professional organization for pharmacists. • Question 3 1 out of 1 points A nurse is caring for a 46-year-old patient of Chinese origin who has bipolar disorder. The physician has prescribed lithium carbonate (Eskalith) to treat the disorder. The nurse is aware that the lithium dose will likely be given in a Response Feedback: The patient would likely be prescribed a lower-than-normal dose of lithium to treat the disorder since he is an American. Chinese Americans require lower levels of lithium to achieve a therapeutic response. Different drugs can be metabolized only by specific liver enzymes, and receptors are custom-designed to accept only certain drug configurations. As with enzymes, the number and type of receptors are influenced by genetics. Chinese Americans, and other Chinese people, appear to have a greater number of lithium-activated receptors than other groups.