Test 2--Chapter 28 Oxygen Needs Flashcards
1
Q
What is oxygen?
A
- It is a gas
- It has no taste, odor, or color.
- It is a basic need required for life.
2
Q
What happens when there is a lack of oxygen?
A
- Death occurs within minutes if breathing stops.
- Brain damage and serious illness can occur without enough oxygen.
3
Q
What affects oxygen needs?
A
- Respiratory system status
- Circulatory system function
- Red blood cell (RBC) count
- Nervous system function
- Aging
- Exercise
- Fever
- Pain
- Drugs (respiratory depression, respiratory arrest)
- Smoking
- Allergies
- Pollutant exposure
- Nutrition
- Alcohol
4
Q
What are the three processes of respiratory function?
A
- Air moves into and out of the lungs.
- O2 and carbon dioxide (CO2) are exchanged at the alveoli.
- The blood carries O2 to the cells and removes CO2 from them.
5
Q
Hypoxia
A
inadequate oxugen
6
Q
What is normal breath rate?
A
12 to 20 breaths per minute
7
Q
Tachypnea
A
rapid breathing
8
Q
Hypoxemia
A
a reduced amount of oxygen in the blood.
9
Q
bradypnea
A
slow breathing
10
Q
apnea
A
lack of breathing
11
Q
Hypoventilation
A
means respirations are slow, shallow, and sometimes irregular.
12
Q
hyperventilation
A
respirations are rapid and deeper than normal.
13
Q
dyspnea
A
difficult, labored, or painful breathing.
14
Q
Cheyne-Stokes respirations
A
- Respirations gradually increase in rate and depth.
- Then they become shallow and slow.
- Breathing may stop (apnea) for 10 to 20 seconds.
15
Q
Orthopnea
A
breathing deeply and comfortably only when sitting.
