Online Access Free NEX Practice Test

The graph displays a patient's systolic blood pressure taken daily from February 1 to May 2.

What is the apparent range of blood pressure over this period?

• A.40
• B.45
• C.60
• D.155

Word Knowledge
The word"fatigue"most nearly means:

• A.Energy
• B.Tiredness
• C.Hunger
• D.Excitement

An acid needs to be diluted at a ratio of 5 grams of acid per 3 liters of water. How many grams of acid are needed for a solution of 24 liters of water to maintain the ratio?

• A.360 grams
• B.14.4 grams
• C.1.6 grams
• D.40 grams

Word Knowledge
The word"observe"most nearly means:

• A.Watch carefully
• B.Interrupt
• C.Question
• D.Disregard

Which structure works to prevent reflux of gastric contents by contracting and relaxing?

• A.Lower esophageal sphincter
• B.Angle of His
• C.Esophageal muscularis
• D.Upper esophageal sphincter