Oxygen is carried throughout our bodies on cells called:

1.   ?    Red blood cells
2.   ?    White blood cells
3.   ?    osteocytes
4.   ?    leukocytes

Our bodies exhale what percentage of Oxygen?

1.   ?    17 – 20%
2.   ?    18 – 20%
3.   ?    15 – 16%
4.   ?    11 – 15%

The majority of gas exchange (oxygen and carbon dioxide) takes place in the:

1.   ?    Bronchioles
2.   ?     Lungs
3.   ?    Pleura
4.   ?    Alveoli

What technique should be used in opening a patient`s airway when trauma is suspected?

1.   ?    Hyperextension
2.   ?    Head-lift maneuver
3.   ?    Jaw-thrust maneuver
4.   ?    Sellick`s maneuver

Normal respiration is a(n) ______ process.

1.   ?    Active
2.   ?    Parasympathetic
3.   ?    Sympathetic
4.   ?    Passive

Factors that can cause inadequate oxygen perfusion are:

1.   ?    Respiratory muscle paralysis
2.   ?    Gas bubble
3.   ?    Bronchitis
4.   ?    All of the these

The main respiratory center is in the:

1.   ?    Pituitary
2.   ?    Medulla
3.   ?    Frontal lobe
4.   ?    Dura Mater

Once inspiration is initiated, stretch receptors in the smooth muscle of the lungs become activated. This is called:

1.   ?    Starling`s law
2.   ?    Sellick`s reflex
3.   ?    Einthoven`s reflex
4.   ?    Hering-Breuer reflex

Without oxygen, cells begin to die in:

1.   ?    1 -2 minutes
2.   ?    4 - 6 minutes
3.   ?    10 - 15 minutes
4.   ?    6 - 8 minutes

Which airway adjunct can be used if the patient has a gag reflex?

1.   ?    Nasal cannula
2.   ?    Nasopharyngeal airway
3.   ?    Oropharyngeal airway
4.   ?    Pharyngeal lumen airway