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Ch 9. Medical Emergencies
Terms in this set (36)
Eyes open score
verbal response score
motor response score
level of consciousness
Assessment 3 parameters
1. Ask patient: name, todays date, their address, and reason for coming to the imaging department
2. Note ability to follow instructions during positioning exam. Note movement causing pain.
3. Assess vital signs
the body's pathologic reaction to illness, trauma, or severe physiologic or emotional stress
3 classifications of shock
3 stages of shock
I. compensatory or non-progressive
II. progressive or decompensated
not noticeable physically, starts in cells of body (possible increased heart rate)
blood is shunted away from other organs and more blood is provided to the brain and heart
compensatory symptoms (5)
1. cold and clammy
2. nausea and dizziness
4. increase anxiety, pt may be uncooperative
5. BP decreased and pulse rate increased
-peripheral circulation reacts and allows fluid to leak from capillaries
-decreasing amount of fluid in circulation
-acute renal failure, liver, GI and hematologic systems all begin to fail
progressive symptoms (7)
1. decreased BP and increased pulse rate
2. rapid and shallow respirations
3. severe pulmonary edema
5. chest pain
6. altered mental state
7. renal, hepatic, GI, and hematologic problems occur
-organ systems suffer irreparable damage
-recovery is unlikely
1. low bp
2. renal and liver failure
3. release of necrotic tissue toxins and overwhelming lactic acidosis (body is unable to drain lactic acid from body due to organ failure)
losing more than 15-25% of your body's blood fluid supply. 750 to 1300 mL
Hypovolemic shock may be caused from internal or external __________; loss of plasma from __________; or fluid loss from prolonged vomiting, diarrhea, or medications.
during hypovolemic shock, the patient will be very _______.
during hypovolemic shock, extremities are _______ and _________.
during hypovolemic shock, ________ starts at the lips and nails.
during hypovolemic shock, __________ and __________ arrest may occur.
-may occur over a period of time
-it is the failure of the heart to pump an adequate amount of blood to the vital organs
Those most vulnerable to cardiogenic shock
patients with heart attacks, dysrhythmias, cardiac pathology
3 types of distributive shock
neurogenic, septic, anaphylactic
-characterized by the blood vessels' inability to constrict and assist in the return of blood back to the heart.
-may occur when chemicals released by the cells cause vasodilation and capillary permeability
loss of sympathetic tone, causing vasodilation of peripheral vessels
neurogenic shock signs
-spinal cord injury
-depressant action of medication
-lack of glucose (insulin reaction or shock)
-adverse effects of anesthesia
least likely to observe in imaging
What is the most common cause of septic shock?
Incidents of septic shock have risen to ______________ mortality rate.
________ is treated with antibiotics, fluids, and medicines to support blood pressure and prevent organ damage.
Most frequently seen type of shock in radiographic imaging
__________ is the result of an exaggerated hypersensitivity reaction to re-exposure to an antigen that was previously encountered by the body's immune system.
response is usually extremely quick and severe.
-body releases a histamine and bradykinin causing widespread vasodilation
-produces shock, respiratory failure and death within minutes
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