What is placed directly on a wound to control bleeding and prevent further contamination?

As an EMT allowed to assist with ALS interventions, you realize that IV therapy is beneficial for patients because it:

A) provides arterial blood for analysis. B) allows constant monitoring of the patient's oxygen level. C) provides a route to administer medications. D) provides IV solutions that carry oxygen to the cells.

Which of the following signs is indicative of occlusal problems when observed during a maintenance visit?

A) Wear facets B) Bleeding on probing C) Gingival inflammation D) Deep probing depths