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Hypoxemia - ans -The most common cause of cardiopulmonary arrest in the
trauma patient
Cardiac output - ans -Heart rate x stroke volume
Shock - ans -Condition that occurs when perfussion of the bodies tissues with
oxygen, glucose, electrolytes and fluid becomes inadequate.
Compensated shock - ans -Weakness, lightheaded, pallor, tachy, diaphoresis,
tachypenia, decreased urine output, weak peripheral pulses
Decompinsated shock - ans -Hypotension, altered mental status, cardiac arrest
Early shock - ans -Loss of 15-25% of blood volume, tachy, pallor, narrowed pulse
pressure, thirst, weakness
Late shock - ans -Loss of 30-45% blood loss, hypotension. Bodies ability to
compensate has failed
Pressence of tachycardia - ans -Tachycardia in the resting patient is always an
indication something medically wrong or possibly occult hemorhage.
Whats considered tachycardia? - ans -Above 100 in an adult and higher in younger
ages
Low volume shock - ans -absolute hypovolemia, caused by a Weak, thready
pulse,rapid rate,hemorhage, or other major body fluid loss
High space shock - ans -relative hypovolemia, caused by spinal injury, vasovagal
syncope, sepsis and certain drug overdoses, normal weak pulse
, Mechanical shock - ans -cardiogenic shock, also known as obstructive shock,
caused by pericardial tamponade, tension pneumothorax, massive pulmonary
embolism, or weakened heart muscle(like myocardial contusion or infarction)
whats the #1 cause of preventable death from injury? - ans -hemorrhagic shock
hypovolemic shock signs and symptoms - ans -tachycardia, pale, and have flat
neck veins
"vasodilatory shock" - ans -relative hypovolemia or high space shock
Neurogenic Shock signs and symptoms - ans -Decreased blood pressure, heart
rate will be normal or slow and the skin is usually warm, dry and pink. The patient
may also have accompanying parylisis and/or sensory deficits.
tension pneumothorax - ans -High air tension that may sometimes develop in the
pleural space between the lung and the chest wall. It prevents venous return to
the heart causing JVD and tracheal deviation
Cardiac tamponade or pericardial tamponade - ans -blood fills the space between
the heart and the pericardium squeezing the heart and preventing the heart from
filling. Causes cardiac output to fall resulting in shock.
"Becks Triad" - ans -signs and symptoms of a pericardial tamponade: Shock,
Muffled Heart Tones, Narrowed Pulse Pressures and JVD. (Normal Lung sounds!)
Myocardial Contusion - ans -Heart loses pumping ability due to direct injury to the
heart muscle and cardiac dysrhythmias. Rapid Transport and cardiac monitoring!
for Cyanosis to occur - ans -a patient must have 5 grams of deoxygenated
hemoglobin per 100cc of blood
What is the optimal pulse oximetry reading for patients at risk of shock - ans -95%
What is the fluid bolus for a patient with shock symptoms? - ans -20 mL/KG IV