Explanation

Adrenaline (also known as epinephrine) increases the following effects on the heart:

Heart Rate:

Adrenaline increases the heart rate (positive chronotropic effect).

Contractility:

It increases the force of heart muscle contractions (positive inotropic effect).

Conduction Velocity:

It enhances the speed of electrical conduction through the heart (positive dromotropic effect).

Cardiac Output: 

Due to the increased heart rate and contractility, adrenaline boosts the overall cardiac output.

Explanation

Agoraphobia means 'fear of the marketplace'.

Generally, busy public places are feared the most

Additional information:

Anthophobia is the fear of flora.

Aerophobia is an extreme fear of flying.

Febriphobia is the fear of fever.

Laliophobia is a fear of speaking

Nyctophobia is the fear of  Darkness.

Explanation

Professional training is education focused on developing specific skills for a career.

Professional training involves:

• Skill Enhancement
• Knowledge Update
• Career Development
• Compliance
• Productivity Boost
• Problem-Solving

Explanation

A place that does not have safe oxygen levels is typically referred to as a "Confined Space."

Where serious injury can occur from hazardous substances or conditions within the space or nearby (e.g. lack of oxygen)

There are two types of confined spaces

• Permit
• Not-Permit

Explanation

EMTs are not authorized to administer medication without the permission of an MBBS doctor