Lecture: HYPOXIA, MEDIC ALERT, AND ERP Flashcards
What is aptosis?
It is the programmed cell death
What is hypoxia?
Low or inadequtate oxygen delivery to the tissue cells (vital organs like heart, lungs have a lack of oxygen)
What is the triangle of life?
Head, heart lungs
What is regional vs general hypoxia
regional : reduced oxygen to one spefific area
general: whole body is lacking oxygen
what are the causes of hypoxia
inadequate oxygenation: lack of oxygen in atmosphere or hypoventilation)
pulmonary disease
venous to arterial shunts
inadequate oxygen transport to tissues (anemia, general/localized circulatory deficiency, tissue oedema)
inadequate tissue capability of using oxygen (ec
Early stages of hypoxia
RATT r=restlessness a= anxiety t=tachycardia (heart rate over 100 bpm) t=tachypnea (faster breathing rate)
Late stages of hypoxia
BEDC b=bradycardia (heart rate under 60 bpm) e=extreme restlessness d= dyspnea (slow breathing rate) c=cyanosis (extremities and lips will turn blue)
Effects of hypoxia (severe and less severe)
severe: can cause death of cells in body
less severe: depressed mental capacity, sometimes coma
reduced work capacity of muscles
Does high levels of altitude affect oxygen>
Yes, low oxygen pressure at high altitudes
normal for breathing and pulse rate to compensate
True or false: use of accessory breathing muscles is a sign of possible hypoxia
True
IS cyanosis a late or early sign of hypoxia?
LATE SIGN
When can hypoxia be seen (scenarios)
Myocardial infarction Pulmonary edema Acute narcotic overdose Smoke inhilation Stroke Chest injury Shock Chronic obstructive pulmonary disease (COPD)
What are signs of laboured breathing?
accessory muscles cyanosis cool, clammy skin uneven in/exhale lung sounds
What is agonal breathing
Occasional gasping breaths even when heart has stopped.
Impulses still from the brain
What is cheyne-strokes breathing
it is a Irregular pattern of breathing from head trauma or stroke.
Increased rate and depth of breathing, followed by apnea
(no spontaneous breathing).