What is the process by which a hazardous chemical moves through a given material on the molecular level?

Your patient is a three-year-old girl who has had vomiting and diarrhea for 24 hours. Which of the following is the best way to gain her cooperation when assessing her vital signs?

A) Avoid explanations, and finish the assessment quickly. B) Ask if you can check her doll to "see how the doll is feeling" before repeating the same procedures on the child. C) Say, "I'm going to take your blood pressure." D) Explain that you want to give her arm a hug.

Which type of scaler is used interproximally?

a. Chisel b. File c. Sickle d. Hoe