ATI RN
Chapter 14 Drugs for the Reproductive System Questions
Question 1 of 5
Drugs showing zero-order kinetics of elimination:
Correct Answer: D
Rationale: The correct answer is D because drugs exhibiting zero-order kinetics have a linear plot of drug concentration versus time. In zero-order kinetics, the rate of drug elimination remains constant regardless of drug concentration, leading to a linear decrease in drug concentration over time. Choice A is incorrect as first-order kinetics are more common. Choice B is incorrect as zero-order kinetics show a constant rate of elimination, not exponential decrease. Choice C is incorrect as the half-life of drugs exhibiting zero-order kinetics is dose-dependent.
Question 2 of 5
What is the time required to change the amount of a drug in plasma by half during elimination?
Correct Answer: C
Rationale: The correct answer is C: Half-life (t1/2). Half-life is the time required for the concentration of a drug in plasma to decrease by half during elimination. It is a measure of how quickly a drug is removed from the body. It is independent of dose or concentration. Absorption time (A) is the time it takes for a drug to enter the bloodstream. Metabolic time (B) refers to the time it takes for a drug to be metabolized in the body. Clearance time (D) is the time it takes for the body to clear a certain amount of drug from the plasma, but it does not specifically indicate the time required for half of the drug to be eliminated.
Question 3 of 5
When nonpharmacological treatment fails for constipation, which drug would be a first-line treatment for constipation during pregnancy?
Correct Answer: A
Rationale: The correct answer is A: Docusate sodium. It is a stool softener commonly used during pregnancy due to its safety profile. It helps to soften the stool, making it easier to pass without straining, which is important in preventing constipation. B: Magnesium citrate is not recommended during pregnancy due to its potential to cause diarrhea and electrolyte imbalance. C: Castor oil is not recommended during pregnancy as it can induce labor and has potential side effects. D: Mineral oil is not recommended during pregnancy due to its potential to interfere with nutrient absorption and cause aspiration pneumonia if accidentally inhaled.
Question 4 of 5
Which assessment finding is most concerning when examining a client in preterm labor who is receiving magnesium sulfate?
Correct Answer: C
Rationale: The correct answer is C: Loss of patellar reflexes. This is concerning when examining a client in preterm labor receiving magnesium sulfate due to the risk of magnesium toxicity, which can lead to respiratory depression and cardiac arrest. Loss of patellar reflexes indicates excessive magnesium levels affecting neuromuscular function. Options A and B are common side effects of magnesium sulfate administration. Option D, positive clonus, may also be seen with magnesium toxicity but is not as specific or critical as loss of patellar reflexes in this context.
Question 5 of 5
A client is to receive 10 mg nalbuphine by slow intravenous push for pain relief during labor. During which phase of uterine contractions will the nurse plan to administer nalbuphine?
Correct Answer: C
Rationale: The correct answer is C: Between uterine contractions. Administering nalbuphine during contractions can lead to decreased uterine blood flow, potentially compromising fetal oxygenation. Waiting until between contractions allows for optimal fetal oxygenation and minimizes the risk of uterine hyperstimulation. Administering at the end of a contraction or at any time during a contraction may still pose risks to the fetus.