Which One of the Following Statements About Removing a Helmet

question 7

Multiple Choice

Which one of the following statements about removing a helmet in the prehospital setting is true?

• A) "Helmets should only be removed if they are too tight or spinal immobilization will be required."
• B) "It is acceptable to leave the helmet on a patient if the patient has no airway or breathing problems."
• C) "Any patient wearing a helmet should have it removed so the airway and breathing can be properly assessed."
• D) "Since helmets should never be removed, the EMT must be creative in providing care around the obstacle of a helmet."

Apply knowledge of organic synthesis to design synthetic routes for complex molecules starting from simple precursors such as benzene.

Understand the concept and application of nucleophilic aromatic substitution reactions.

Explain the directing effects of functional groups in electrophilic aromatic substitution reactions.

Distinguish between activating and deactivating groups and their effects on reaction rate and product formation in aromatic substitution reactions.

---

Definitions:

Hydrogen Atoms

The simplest and most abundant type of chemical atom in the universe, consisting of one electron bound to a single proton.

Molecule

The smallest unit within a chemical substance that possesses the chemical attributes of the specific element or compound.

Lewis Structure

A representation of molecules showing all the valence electrons as dots or lines, highlighting the bonding between atoms and any lone pairs.

Empirical Formula

The simplest integer ratio of the elements present in a compound, not indicating the actual number of atoms.