West Coast EMT block 2 study guide Exam
test Questions and Verified Answers, 100%-
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nasal cannula - CORRECT ANSWERS An oxygen-delivery device in which oxygen flows through
two small, tubelike prongs that fit into the patient's nostrils
delivers 24% to 44% supplemental oxygen, depending on the flow rate.
1-6 or 1-4 L/min
A BVM bag will hold between _____ and _____ mL of air. - CORRECT ANSWERS 1000 and 1600
BVM's must have a volume of at least _____mL for newborns and infants. - CORRECT ANSWERS
500 (Child BVM)
BVM - CORRECT ANSWERS bag valve mask; 15 L/min of 100% oxygen
What is a NRB and when do you use it? - CORRECT ANSWERS Nonrebreathing mask used for
patients who are breathing adequately but are suspected of having or showing signs of hypoxia.
10-15L/min flow rate provides up to 95% inspired oxygen
Venturi mask - CORRECT ANSWERS an oxygen-delivery apparatus consisting of a mask with
holes on each side that allow exhaled air to escape and color-coded entrainment ports that are
adjustable to allow regulation of the concentration of oxygen delivered
24%-44% oxygen (medium flow device)
, CPAP (continuous positive airway pressure) - CORRECT ANSWERS When it's continuously
positive, it means there's air constantly being pushed in, in this case to help keep those alveolar sacs
inflated
Mouth to Mask Ventilation - CORRECT ANSWERS technique of artificial ventilation that involves
the use of a pocket face mask with one-way valve to blow air into the mouth of a patient
Capnography - CORRECT ANSWERS A noninvasive method to quickly and efficiently provide
information on a patient's ventilatory status, circulation, and metabolism; effectively measures the
concentration of carbon dioxide in expired air over time.
Alkalosis - CORRECT ANSWERS The buildup of excess base (lack of acids) in the body fluids. pH >
7.45
Central chemoreceptors - CORRECT ANSWERS brainstem neurons that respond to changes in
pH of cerebrospinal fluid
Located in the medulla
Increase RR and tidal volume to get rid of CO2
Primary mechanism of breathing
Peripheral chemoreceptors - CORRECT ANSWERS Receptors in the carotid arteries and the aorta
that monitor blood pH to help regulate ventilation rate.
Back up mechanism of breathing (hypoxic drive)
Cardiac output - CORRECT ANSWERS Heart rate x stroke volume, the overall performance of the
heart
Ventilation - CORRECT ANSWERS movement of air in and out of the lungs
test Questions and Verified Answers, 100%-
Score Guarantee Pass (Latest 2025/2026
rated A+
nasal cannula - CORRECT ANSWERS An oxygen-delivery device in which oxygen flows through
two small, tubelike prongs that fit into the patient's nostrils
delivers 24% to 44% supplemental oxygen, depending on the flow rate.
1-6 or 1-4 L/min
A BVM bag will hold between _____ and _____ mL of air. - CORRECT ANSWERS 1000 and 1600
BVM's must have a volume of at least _____mL for newborns and infants. - CORRECT ANSWERS
500 (Child BVM)
BVM - CORRECT ANSWERS bag valve mask; 15 L/min of 100% oxygen
What is a NRB and when do you use it? - CORRECT ANSWERS Nonrebreathing mask used for
patients who are breathing adequately but are suspected of having or showing signs of hypoxia.
10-15L/min flow rate provides up to 95% inspired oxygen
Venturi mask - CORRECT ANSWERS an oxygen-delivery apparatus consisting of a mask with
holes on each side that allow exhaled air to escape and color-coded entrainment ports that are
adjustable to allow regulation of the concentration of oxygen delivered
24%-44% oxygen (medium flow device)
, CPAP (continuous positive airway pressure) - CORRECT ANSWERS When it's continuously
positive, it means there's air constantly being pushed in, in this case to help keep those alveolar sacs
inflated
Mouth to Mask Ventilation - CORRECT ANSWERS technique of artificial ventilation that involves
the use of a pocket face mask with one-way valve to blow air into the mouth of a patient
Capnography - CORRECT ANSWERS A noninvasive method to quickly and efficiently provide
information on a patient's ventilatory status, circulation, and metabolism; effectively measures the
concentration of carbon dioxide in expired air over time.
Alkalosis - CORRECT ANSWERS The buildup of excess base (lack of acids) in the body fluids. pH >
7.45
Central chemoreceptors - CORRECT ANSWERS brainstem neurons that respond to changes in
pH of cerebrospinal fluid
Located in the medulla
Increase RR and tidal volume to get rid of CO2
Primary mechanism of breathing
Peripheral chemoreceptors - CORRECT ANSWERS Receptors in the carotid arteries and the aorta
that monitor blood pH to help regulate ventilation rate.
Back up mechanism of breathing (hypoxic drive)
Cardiac output - CORRECT ANSWERS Heart rate x stroke volume, the overall performance of the
heart
Ventilation - CORRECT ANSWERS movement of air in and out of the lungs
