EMTB Chapter 10 shock

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hypotension in a child is with blunt or penetrating trauma is particularly concerning because

it often indicates the loss of half of their blood volume

patients develop septic shock secondary to:

poor vessel function and sever volume loss

shock is the result of:

hypoperfusion to to body's cells

anaphylactic shock is

an exaggerated allergic reaction

The three basic causes for shock

1)poor pump function
2)dilating blood vessels
3)blood or fluid loss

Damage to the spinal cord that produces neurogenic shock will cause the blood vessels to

dialate

Signs and symptoms of anaphylactic shock seen in the skin are

1)urticaria and flushing.
2)edema of the face, tongue, and lips.
3)itching and burning.

During decompensated shock, the blood pressures will

fall

At what systolic blood pressure should you recognize that an adult patient is in decompensated shock

90 mmHg

Anxiety, bad news, or sight of blood can cause ________ shock.

psychogenic

When treating a patient in cardiogenic shock, your first step should be to

ensure that the patient has an open airway.

type of shock occurs as the result of a severe infection

septic

pre-load

blood coming to the heart to build up precontraction pressure. Diastolic BP

afterload.

the resistance against which the heart pumps. systolic BP.

cardiogenic shock

inadequate heart function
effect: backup of fluid into the lungs
develops when heart can't maintain sufficient output to meet demands of body

obstructive shock

cardiac tamponade, tension pneumothorax
occurs when conditions that cause mechanical obstruction of the cardiac muscle also affect pump function

distributive shock

widespread dilation of small arterioles or venules or both. As a result, blood will pool in the expanded vascular beds and tissue perfusion decreases.

(septic shock, anaphylactic shock, neurogenic shock, psychogenic shock)

septic shock

vessels leak and are unable to contract caused by severe infection in which toxins are generated by bacteria or infected cells

almost always a complication of serious surgery, injury or illness.

neurogenic shock

caused by injury or illness to part of the nervous system that controls vessel tone.

anaphylactic shock

a violent reaction to substance to which bpdy has been sensitized
each subsequent esposure is more severe
common causes are shots, stings
give epi, call med control

psychogenic shock

caused by sudden reaction of the nervous system
non life threatening causes like seeing blood or getting bad news.

hypovolemic shock

either blood loss of dehydration (fluid loss)
literally low blood volume

stages of shock

1) compensated - body can still compensate, characterized by restlessness, anxiety, Altered Mental Status, weak, rapid or absent pulse, cool clammy skin, shallow rapid breathing thirst
2) decompensated - BP is falling (but may be the last measurable thing to change) labored or irregular breathing, ashen mottled skin, absent peripheral pulses, dull eyes, dilated pupils
3) irreversible - death is imminent

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