Which measures the accuracy of an image compared to the original object on a scale of 0 to 1?

A patient has a burn that completely encircles his right forearm and upper arm. After performing the primary assessment, the EMT's next action would be to:

A) evaluate and compare grip strength in the right and left hands. B) check for motor, sensory, and a pulse in the right upper extremity. C) ask the patient to rate the pain on a scale of one to ten. D) carefully break the blisters to decrease the pressure caused by swelling.

What is the short-term exposure limit value?

a. The amount of a substance, measured in milligrams per body mass, that kills half of a group of laboratory animals to which the substance is administered during a preestablished time b. The concentration of a substance to which workers can be exposed continuously for a period of approximately 15 minutes without suffering irritation, chronic or irreversible tissue damage, or narcosis sufficient to increase the risk of accidental injury, impair self-rescue, or materially reduce work-related efficiency c. The concentration of a substance, measured in parts per million, that kills half of a group of laboratory animals to which the substance is administered during a preestablished time d. The concentration in milligrams per kilogram (mg/kg) of a substance that kills a laboratory animal within 48 hours