PAX PAX (RN) 3

Question 1

What percentage of 80 is 20?

Accepted Answer

25%

Answer

20 ÷ 80 = 0.25, which equals 25%.

Question 2

Which of the following is the primary function of red blood cells?

Accepted Answer

Transport oxygen

Answer

Red blood cells contain hemoglobin, which binds to oxygen and transports it from the lungs to body tissues.

Question 3

Choose the word that best completes the analogy: Stethoscope : Auscultation :: Sphygmomanometer : ___

Accepted Answer

Blood pressure

Answer

A stethoscope is used for auscultation; a sphygmomanometer is used to measure blood pressure.

Question 4

A train travels 240 miles in 4 hours. What is its average speed in miles per hour?

Accepted Answer

60 mph

Answer

Speed = distance ÷ time = 240 miles ÷ 4 hours = 60 mph.

Question 5

In the pH scale, a solution with a pH of 3 is best described as:

Accepted Answer

Acidic

Answer

The pH scale runs from 0–14; values below 7 are acidic, 7 is neutral, and above 7 is basic, so pH 3 is acidic.

PAX Exam Practice Test