Medical Emergencies Flashcards
(30 cards)
The medical emergencies most likely occur in the Radiology Department
not necessarily related to trauma are: 6
shock,
anaphylaxis,
diabetic reactions,
cerebral vascular accidents,
cardiac and respiratory failure ,
fainting and convulsions
THE RADIOLOGIC TECHNOLOGIST ROLE:
In most cases, the first action an RT will take in a life threatening
emergency is
- To call the hospital emergency team, the physician conducting the
procedure, and his colleagues for assistance. - He must learn the correct procedure in the institution in which he/she
works from calling the hospital emergency team. - He must have the telephone number memorized and prepared to
explain the exact location of the emergency and the problem
physiologic reactions to illness or
trauma in which there is a
disturbance of blood flow to the
vital organs or decreased ability of
the body tissues to use oxygen and
other nutrients needed to
maintain them in healthy state.
Shock
Major classes of shock: 5
- Hypovolemic shock
- Septic shock
- Cardiogenicd shock
- Neurogenic shock
- Anaphylactic shock
General Symptoms of shock includes:
1. Decrease temperature
2. A weak thready pulse
3. A rapid heart beat
4. Rapid shallow respirations
5. Hypotension
6. Skin pallor
7. Cyanosis and increased thirst
8. Altered mental status
caused by abnormally low volume of circulating
blood in the body.
- it maybe due to internal or external
hemorrhage; loss of plasma because of burns;
fluid loss from prolonged vomiting or diarrhea;
heat prostration; or insufficient release of anti-
diuretic hormone
Hypovolemic shock
Cardiac and respiratory failure will follow if this condition is allowed to
continue.
hypovolemic shock
caused by severe systemic infections and bacteria (bacterial endotoxins
released in the bloodstream). Symptoms progress somewhat differently
from those other types of shock
Septic shock
caused by a failure of the heart to pump an adequate amount of blood
to the vital organs
cardiogenic shock
occurs when concussion, spinal cord injury ,
psychic trauma, or spinal anesthesia causes
abnormal dilatation of the peripheral blood
vessels. This dilatation in turns causes a fall in
blood pressure as blood pools in the veins.
This leads to reduced cardiac output
neurogenic shock
a life threatening type of allergic reaction .
- it is the result of exaggerated
hypersensitivity reaction (allergic reaction)
to an antigen that was previously
encountered by body’s immune system.
anaphylactic shock
seen in diabetics who have injected too much insulin, causing
severe hypoglycemia (low blood-sugar levels)
insulin shock
commonly known as fainting
psychogenic shock
- in early stages the skin is warm dry and flushed then the skin becomes cold and clammy
septic shock
Urine output may be normal or excessive.
3. The patient have chills as shock progress, there may be an abrupt
personality change or a decrease in the level on consciousness .
4. There is an increase in pulse and respiration and a decrease in urinary
output.
septic shock
- Scale used to initially assess a
patient’s mental status
AVPU scale ( Alert, Voice, Pain, Unresponsive )
place patient in a semi-fowler’s position
cardiogenic shock
Insufficient blood supply due to dehydration, bleeding or swelling.
2. A poor blood supply to the heart, where there is not enough oxygen
and other nutrients for its work.
3. Poor lung function or obstruction to blood flow in the lungs, which
places a strain on the heart muscle
4. Too many or too few electrolytes (eg. potassium, magnesium) that
cause irregular heartbeats or dangerous rhythms in the heart.
5. Weakness of blood vessel walls.
6. Heart muscle weaknes
cardiogenic shock
for cardiogenic shock take vital signs every __ minutes
5-10
altered conscious state
restlessness or irritability
pale or bluish, cool moist skin
excessive thirst
rapid and weak pulse
rapid breathing
nausea and/or vomitting
hypovolemic shock
Damage to the spinal cord can cause
significant injury to the part of the
nervous system that controls the size
and muscle tone of blood vessels. If
the smooth muscle in the blood
vessels is cut off from its impulses to
contract, then the vessels dilate
widely, increasing the size and capacity
of the vascular system. The blood in
the body can no longer fill the
enlarged vessels, which results in
___
inadequate perfusion and neurogenic
shock.
- Hypotension and Bradycardia
- Initial alertness unless the patient is unconscious because of head
injury. - Initially good, but deteriorating, tissue perforation.
- Visible signs of poor tissue perforation; coolness of extremities and
diminishing peripheral pulses
neurogenic shock