FREE UWorld Active Learning Questions and Answers

Question 1

A 25-year-old female presents with fatigue, pallor, and glossitis. Laboratory tests reveal hemoglobin of 8.5 g/dL, mean corpuscular volume (MCV) of 105 fL, and hypersegmented neutrophils on a peripheral smear. Which of the following is the most likely diagnosis?

Accepted Answer

Vitamin B12 deficiency

Answer

The patient's symptoms (fatigue, pallor, glossitis) combined with laboratory findings of anemia (low hemoglobin), macrocytosis (high MCV of 105 fL), and hypersegmented neutrophils on a peripheral smear are classic indicators of megaloblastic anemia. This type of anemia is most commonly caused by a deficiency in vitamin B12 or folate. Given the options, Vitamin B12 deficiency is the most fitting diagnosis.

Question 2

A nurse is preparing to administer an intravenous (IV) antibiotic to a patient. Which of the following steps is the most appropriate to prevent medication errors?

Accepted Answer

Asking the patient about their known allergies before administration

Answer

Before administering any medication, especially an intravenous antibiotic, verifying the patient's known allergies is a crucial step to prevent severe adverse drug reactions. This aligns with the 'rights of medication administration' and ensures patient safety by avoiding potentially life-threatening allergic responses. While other steps like verifying the label are important, directly confirming allergies with the patient is a unique and essential safety check.

Question 3

Read the passage below and answer the question that follows:

"The innovations of the 21st century have undoubtedly improved communication. However, they have also fostered a reliance on technology that may impede face-to-face social interactions."

Which statement best supports the author’s argument?

Accepted Answer

Studies show a decline in conversational skills among frequent technology users.

Answer

The author argues that technology, despite improving communication, 'may impede face-to-face social interactions.' The statement 'Studies show a decline in conversational skills among frequent technology users' directly supports this argument. It provides evidence that heavy technology use can negatively impact the very skills necessary for effective face-to-face interaction, thus demonstrating how technology could impede such interactions.

Question 4

A rectangular room has a length of 12 meters and a width of 9 meters. If the room's floor is to be tiled, and each tile covers an area of 0.36 square meters, how many tiles are needed?

Accepted Answer

300

Answer

First, calculate the total area of the rectangular room: Area = length × width = 12 meters × 9 meters = 108 square meters. Next, divide the total room area by the area covered by each tile to determine the number of tiles needed. Number of tiles = 108 m² / 0.36 m²/tile = 300 tiles.

Question 5

A farmer has 10 cows, 5 chickens, and 3 goats. If he sells 40% of his cows, how many cows does he have left?

Accepted Answer

6

Answer

The farmer initially has 10 cows. He sells 40% of his cows. To find out how many cows he sold, calculate 40% of 10: 0.40 × 10 = 4 cows. To determine the number of cows he has left, subtract the number sold from the original number: 10 cows - 4 cows = 6 cows.

UWorld Practice Test

UWorld Practice Test

FREE UWorld Active Learning Questions and Answers