Chapter 10 Flashcards
the amount of air that reaches the alveoli.
alveolar ventilation (al-VE-o-ler)
forcing air or oxygen into the lungs when a patient has stopped breathing or has inadequate breathing. Also called positive pressure ventilation.
artificial ventilation
a device that provides positive pressure ventilations. It includes settings designed to adjust ventilation rate and volume, is portable, and is easily carried on an ambulance.
automatic transport ventilator (ATV)
a handheld device with a face mask and self-refilling bag that can be squeezed to provide artificial ventilations to a patient. It can deliver air from the atmosphere or oxygen from a supplemental oxygen supply system.
bag-valve mask (BVM)
the exchange of oxygen and carbon dioxide between cells and circulating blood.
cellular respiration
a blue or gray color resulting from lack of oxygen in the body.
cyanosis (SY-uh-NO-sis)
a process by which molecules move from an area of high concentration to an area of low concentration.
diffusion
a valve that indicates the flow of oxygen in liters per minute.
flowmeter
a device that uses oxygen under pressure to deliver artificial ventilations. Its trigger is placed so that the rescuer can operate it while still using both hands to maintain a seal on the face mask. It has automatic flow restriction to prevent overdelivery of oxygen to the patient.
flow-restricted, oxygen-powered ventilation device (FROPVD)
a device connected to the flowmeter to add moisture to the dry oxygen coming from an oxygen cylinder.
humidifier
an insufficiency of oxygen in the body’s tissues.
hypoxia (hi-POK-se-uh)
a device that delivers low concentrations of oxygen through two prongs that rest in the patient’s nostrils.
nasal cannula (NAY-zul KAN-yuh-luh)
a face mask and reservoir bag device that delivers high concentrations of oxygen. The patient’s exhaled air escapes through a valve and is not rebreathed.
nonrebreather mask (NRB)
a cylinder filled with oxygen under pressure.
oxygen cylinder
a face mask and reservoir oxygen bag with no one-way valve to the reservoir bag so that some exhaled air mixes with the oxygen; used in some patients to help preserve carbon dioxide levels in the blood to stimulate breathing.
partial rebreather mask