Aeromedical Factors Flashcards
Name and describe hypoxia in the lungs
Hypoxic hypoxia. any condition that interrupts the flow of oxygen into your lungs. this is a kind of hypoxia that you can encounter at high altitudes due to reduced partial pressure of oxygen
Name and describe hypoxia in the blood
Hypemic hypoxia this is a condition that interferes with the with the blood’s ability to carry oxygen. anemia and carbon monoxide poisoning are 2 examples of keeping oxygen from attaching to the hemoglobin in the red blood cell.
Name and describe the kind of hypoxia that deals with blood circulation
Stagnant hypoxia any condition that interferes with the regular circulation of blood going to the cells some examples are heart failure shock and g force in certain directions
Name and Describe the type of hypoxia where the problem is in the cells
Histo toxic hypoxia this is any condition that interferes with the normal utilization of oxygen in the cell This is whenever the cells are not using the oxygen as they normally would for metabilism. some examples of things that can cause this are alcohol narcotics and cyanide
What 4 systems in the body can have problems that cause hypoxia?
Lungs blood blood flow and cells
What are the 4 kinds of hypoxia?
Hypoxic, Hypemic, stagnant, and hystotoxic
What is the difference between signs of hypoxia and symptoms of hypoxia?
Signs can be Detected by an outside observer. symptoms Are noticeable by the person who is hypoxic.
What are some signs of hypoxia
Rapid breathing cyanosis (bluing effect of the skin) poor coordination letharge executing poor judgment
What are some symptoms of hypoxia
Air hunger fatigue nausea headache dizziness hot And cold flash Visual impairment tingling euphoria
What are some indications that somebody you’re observing is hypoxic
Rapid breathing cyanosis (that’s a blueing effect of the skin, Cyan is blue) Poor coordination lethargy executing poor judgments
What are some possible indications that you yourself are hypoxic
Air hunger, fatigue, nausea, Headache, dizziness, high and cold Flashes, tingling, visual impairment, Euphoria.
What is TUC and EPT
Time of useful consciousness and effective performance time are 2 interchangeable and broad terms describing the time hypoxia limit
What are some factors that would increase the substability to hypoxia
Faster rate of assent, physical activity, fatigue, poor nutrition, alcohol, over-the-counter medication.
Why does poor nutrition increase your susceptibility to hypoxia?
The brain feeds from glucose exclusively (blood sugar) so if you have low glucose you will be more prone to hypoxia.
How can over-the-counter medication increase one’s susceptibility to hypoxia?
Some drugs can reduce your cell’s ability to utilize oxygen properly making you less altitude resistant.
What can be done to treat hypoxia?
Administer pure oxygen and slow your breathing rate so as not to cause hyperventilation.
How fast is a normal breathing c ycle in a healthy adult ?
12 to 16 breaths every minute
Define hyperventilation
Hyperventilation is the state you are in any time you’re breathing faster than normal.
Which gas controls your breathing rate?
Carbon dioxide
Name some signs and symptoms of hyperventilation
Dizziness, blurry vision, tingling, Twitching muscles, and tetany (Muscle spasm)
What are some similarities of hypoxia and hyperventilation?
Dizziness , reduced vision , tingling , rapid breathing.
Why does hyperventilation make your vision blurry
As you hyperventilate, Blood is slowly restricted to your brain, affecting your eyes
Why does hyperventilation cause tingling?
The alkaline high blood That is present with hyperventilation reacts with the sensitive nerves of the extremities, causing the tingling sensation that is experienced
Why does hyperventilation cause twitching muscles?
As The alkaline high blood (caused by hyperventilation) enters the muscle, the muscle will react by twitching. The face and forearm muscles are generally the most prone.
