NSG 170 Gas Exchange || A+ Guaranteed.
How much oxygen is in room air? correct answers 21%
thoracic cavity correct answers an airtight chamber
diaphragm correct answers floor of the thoracic chamber
Breathing is what ratio? correct answers 1:2 ratio (inspiration is 1/3 of the respiration cycle,
expiration is 2/3 of respiratory cycle)
Ventilation correct answers moving air in and out of the lungs
Conditions that hinder ventilation: correct answers - Obesity
- Cirrhosis & Ascites
- Pregnancy
- Neurological disorders
- Head injuries
- Medications (opioids, anesthesia)
- Trauma to chest/ribs/muscles
- Restrictive lung diseases (asthma)
ABC correct answers - Airways
- Breathing
- Circulation
Neurological system correct answers Drives and controls (driving the "bus")
,- Brain stem sends messages to the brain telling your body that you need more O2
Muscles correct answers Respiratory pump
- Intercostal muscles help move diaphragm
- Diaphragm
Lungs correct answers Gas exchange
* Happens in lungs and on a cellular level (O2 diffuses into the bloodstream and attaches to
hemoglobin)
* Pulmonary Edema involved water/fluid in the lungs interstitially which hinders O2 from
getting to the alveoli and them the blood stream.
* CO2 moves easier and quicker than O2
Cardiovascular correct answers Circulation and pump (works as transportation)
-
What do gasses do when they mix? correct answers Diffuses
Cheyne-Stokes breathing correct answers a distinct pattern of breathing characterized by
quickening and deepening respiration's followed by a period of apnea
, How does O2 diffuse? correct answers from areas of higher partial pressure to areas of lower
partial pressure
Normal Hemoglobin correct answers 12-18 g/dL
Low cardiac output correct answers Cardiac pump disease
- low CO
- low BP systolic <90
Low Hemoglobin level correct answers Hgb <9
Tissue Hypoxia correct answers - increased demand from tissue needs
- Anaerobic metabolism
- Septic shock
- Acid-base alterations
* Combination of two or more physiologic mechanisms
Post surgical atelectasis correct answers Complete or partial collapse of the entire lung or area
(lobe) of the lung. It occurs when the tiny air sacs (alveoli) within the lung become deflated or
possibly filled with alveolar fluid.
*Ventilation problem
Viral/bacterial bronchitis correct answers Fluid/pus/phlegm buildup in the bronchi, making
harder for O2 to get to the alveoli.
How much oxygen is in room air? correct answers 21%
thoracic cavity correct answers an airtight chamber
diaphragm correct answers floor of the thoracic chamber
Breathing is what ratio? correct answers 1:2 ratio (inspiration is 1/3 of the respiration cycle,
expiration is 2/3 of respiratory cycle)
Ventilation correct answers moving air in and out of the lungs
Conditions that hinder ventilation: correct answers - Obesity
- Cirrhosis & Ascites
- Pregnancy
- Neurological disorders
- Head injuries
- Medications (opioids, anesthesia)
- Trauma to chest/ribs/muscles
- Restrictive lung diseases (asthma)
ABC correct answers - Airways
- Breathing
- Circulation
Neurological system correct answers Drives and controls (driving the "bus")
,- Brain stem sends messages to the brain telling your body that you need more O2
Muscles correct answers Respiratory pump
- Intercostal muscles help move diaphragm
- Diaphragm
Lungs correct answers Gas exchange
* Happens in lungs and on a cellular level (O2 diffuses into the bloodstream and attaches to
hemoglobin)
* Pulmonary Edema involved water/fluid in the lungs interstitially which hinders O2 from
getting to the alveoli and them the blood stream.
* CO2 moves easier and quicker than O2
Cardiovascular correct answers Circulation and pump (works as transportation)
-
What do gasses do when they mix? correct answers Diffuses
Cheyne-Stokes breathing correct answers a distinct pattern of breathing characterized by
quickening and deepening respiration's followed by a period of apnea
, How does O2 diffuse? correct answers from areas of higher partial pressure to areas of lower
partial pressure
Normal Hemoglobin correct answers 12-18 g/dL
Low cardiac output correct answers Cardiac pump disease
- low CO
- low BP systolic <90
Low Hemoglobin level correct answers Hgb <9
Tissue Hypoxia correct answers - increased demand from tissue needs
- Anaerobic metabolism
- Septic shock
- Acid-base alterations
* Combination of two or more physiologic mechanisms
Post surgical atelectasis correct answers Complete or partial collapse of the entire lung or area
(lobe) of the lung. It occurs when the tiny air sacs (alveoli) within the lung become deflated or
possibly filled with alveolar fluid.
*Ventilation problem
Viral/bacterial bronchitis correct answers Fluid/pus/phlegm buildup in the bronchi, making
harder for O2 to get to the alveoli.
