PSAT Writing and Language Practice Question 370
Question: 370
Modern Medicine
Robotic surgery, also known as robot-assisted surgery, is a medical technology in which an advanced robot with arms and small instruments is controlled by a surgeon. This allows the doctor to perform 21 puzzling procedures without having to make significant incisions on 22 patients' bodies. The first surgical robot was created in 1985, but the uses for surgical robots were initially limited. In 2000, the Food and Drug Administration approved the da Vinci system for general laparoscopic surgery. Now, surgical robots have changed the medical 23 industry. They allow doctors to make precise cuts, even from afar.
In the past, a surgeon would have had to make a long cut for most operations. This can result in more blood loss and longer recovery times for patients. With a surgical robot, after he or she makes a tiny cut, a physician 24 have been able to use a camera to see inside the patient. Then, the doctor can use the controls to conduct the surgery with the robot's miniature tools. Since this technology is fairly new, a study was completed in 2018 to determine how doctors are trained to use surgical robots before operating on patients. Of the 71 programs that were surveyed, 99 percent used a robotic simulator, and 25 medical programs used robots in 86 percent of their classes. Furthermore, 26 51 percent of programs used videos as part of their training.
Aside from helping surgeons to make more precise movements, robotic surgery can also allow physicians to conduct surgeries remotely. For example, although an isolated or impoverished region might not have 27 access to an effective local surgeon, if a surgical robot were available it could actually be controlled by a doctor working in another city or even another country. A 2017 study by Dr. Ryan Madder, published in EuroIntervention, showed a 95 percent overall success rate for such surgeries. 28 Surprisingly, the study showed that no patients died or had to have procedures repeated before being discharged from the hospital.
Surgical robots can help doctors to make precise movements in complex procedures. 29 For this reason, they also allow doctors to operate on patients from a distance, which saves on travel time and costs. Since patients sometimes need a surgery right away, surgical robotics is a field 30 while connecting people with life-saving technology.
Correct Answer: A
Explanation:
A
Commas are changing in the answer choices, so this question is testing the four ways to use a comma. Commas are changing around the phrase to an effective local surgeon, so determine whether this phrase is necessary. The phrase identifies the people that an isolated or impoverished region might not have access to, so it is necessary to the meaning of the sentence. The phrase should not be surrounded by commas. However, the sentence is constructed with an incomplete idea followed by a complete idea, and a comma is needed between the two ideas to separate them. So, there should not be a comma before the phrase, but there should be a comma after it. Keep (A) because it does not place a comma before the phrase, but it does place a comma after the phrase. Eliminate (B) because it places a comma before and after the phrase. Eliminate (C) because it does not place a comma after the phrase. Eliminate (D) because it places a comma before the phrase. The answer correct is (A).