PracticeQuiz content is free on an ad-supported model.

Unfortunately, we can't support ad blocker usage because of the impact on our servers. If you'd like to continue, please disable your ad blocker and reload page.

Reload page

Ophthalmic Technician

Category - Microbiology and Pharmacology

Start a Study Session Sign up for Question of the Day

What does tonicity refer to?

The concentration of a chemical in a solution
The color of a solution
The viscosity of a solution
The pH of a solution

Explanation

Answer: A - The concentration of a chemical in a solution

Tonicity refers to the concentration of a chemical in a solution. Normal saline solution (0.9% sodium chloride) has a tonicity similar to that of tears and therefore is tolerated well by the eyes.

Was this helpful? Upvote!

Start a Study Session Sign up for Question of the Day

Most popular on PracticeQuiz

225 votes

You are attempting to gather information from a patient, but they are having a hard time trying to communicate since they were hit in the throat by a baseball bat. What is the function of the vocal cords? NREMT Advanced EMT
220 votes

Using motivation from ‘within’ is called ______________. CPCE Exam Prep
211 votes

An 8-year-old boy named Albert has a 10-year-old brother named Benny. Benny joins the service at 20 leaving Albert feeling bitter that he no longer has a brother to look up to. After 7 years, Albert is finally ready to make up with Benny who has been out of the service for 5 years. How old is Albert now? GED Exam Prep: Math
191 votes

The lymphatic system contains four organs: Medical Coding Exam Prep
132 votes

Which of the following is the site of protein synthesis? AP Biology

Ophthalmic Technician

Top questions

Related questions

Most popular on PracticeQuiz

Ad-Blocker not supported

Ophthalmic Technician

Top questions

Related questions

Most popular on PracticeQuiz