A Stranger Has Collapsed on a City Sidewalk Due to a Heart

question 8

Multiple Choice

A stranger has collapsed on a city sidewalk due to a heart attack.According to Darley and Latané,what is the first thing that must happen before a bystander helps in this emergency?

• A) the bystander must be in a good mood
• B) the bystander must have pre-existing guilt
• C) the bystander must have seen a helpful role model
• D) the bystander experienced personal distress
• E) none of the these

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Definitions:

Ionized Radiation

Radiation that carries enough energy to liberate electrons from atoms or molecules, thereby ionizing them.

Nuclides

Distinct kinds of atoms or nuclei characterized by a specific number of protons and neutrons.

Radiopaque Substance

A substance that does not allow X-rays or similar radiation to pass through, appearing white or light on radiographic images, used in contrast-enhanced imaging.

Fluorescence

The emission of light by a substance that has absorbed light or other electromagnetic radiation, occurring in various natural and artificial processes.