ATI RN
ATI Pharmacology Made Easy 4.0 Infection Questions
Question 1 of 5
What is the category class of Iron?
Correct Answer: C
Rationale: Iron is classified as an Antianemic agent. Anemia is a condition characterized by a lack of healthy red blood cells, which are responsible for carrying oxygen to the body's tissues. Iron is essential for the production of hemoglobin, the protein in red blood cells that binds oxygen. Therefore, iron supplements are commonly used to treat iron-deficiency anemia by replenishing the body's iron stores and supporting the production of healthy red blood cells.
Question 2 of 5
At 4 to 5 half lives the concentration of drug in blood is
Correct Answer: A
Rationale: The concentration of a drug in the blood decreases by half with each half-life. Thus, after 4 to 5 half-lives, the amount of drug remaining in the blood would be approximately 6.25% to 3.125% of the original concentration. This translates to the concentration being around 50% or less, making the correct answer A. 50%.
Question 3 of 5
Which of the following does NOT describe Reye's syndrome :
Correct Answer: D
Rationale: Reye's syndrome is a rare but serious disorder that primarily affects children and teenagers. It is characterized by an acute encephalopathic illness along with fatty degeneration of the liver and other viscera. Reye's syndrome typically arises after a viral infection, such as influenza or chickenpox, rather than being enhanced by sodium and water retention. This condition is not caused by excessive sodium and water retention but rather by a possible link to the use of aspirin during viral infections in children.
Question 4 of 5
A patient who has been taking a benzodiazepine as a sleep aid for several months wishes to stop taking the medication. The nurse will suggest that the patient taper the dose gradually to avoid which effect?
Correct Answer: D
Rationale: Benzodiazepines, such as medications used for sleep aid, are known for their potential to cause physical dependence. If a patient abruptly stops taking benzodiazepines after using them regularly for an extended period, they are at risk of experiencing withdrawal symptoms. These withdrawal symptoms can be severe and may include rebound insomnia, anxiety, agitation, tremors, sweating, and even seizures in some cases. To prevent or minimize the likelihood of withdrawal symptoms, it is important for patients to gradually taper off the medication under the guidance of a healthcare provider. This gradual tapering helps the body adjust slowly to decreasing doses of the medication, reducing the risk of withdrawal effects.
Question 5 of 5
A patient receiving a targeted therapy asks the nurse why St. John's wort must be avoided. Which response by the nurse is most appropriate?
Correct Answer: B
Rationale: St. John's wort induces the activity of cytochrome P450 enzymes, which metabolize many targeted therapies. This can lead to decreased blood levels of the targeted therapy, reducing its effectiveness. Patients should be advised to avoid St. John's wort to ensure optimal therapeutic outcomes. The other options are incorrect because St. John's wort does not increase blood levels of targeted therapies, cause overdose, or bind with drugs in the intestinal tract.