NUR 2790 - Study Guide Exam 3 Working Copy. Questions and Answers.
1. What is shock syndrome?
Any situation that decreases vascular volume, BP, or
... [Show More] cardiac function leads to shock. It leads to
insufficient O2 delivery, which causes an imbalance between oxygen supply and the body’s
demand for it. It also leads to inadequate blood flow to organ, poor tissue perfusion, and possibly
fatal cellular dysfunction
2. Key point to know about shock
All forms cause a reduction in oxygenation and tissue perfusion. These lead to cellular damage
and organ system failure due to hypoxia. The SNS then tries to compensate for the loss of
oxygenation abilities.
3. What are the phases of shock?
Initial, Compensatory, Progressive, and Refractory.
4. What happens during Initial Shock?
Decreased cardiac output and impaired tissue perfusion
5. What happens during Compensatory Shock?
Activation of SNS
6. What happens during Progressive Shock?
Every system is affected and multiple organ dysfunction occurs.
7. What happens during Refractory Shock?
Body will no longer respond to therapy.
8. Refractory Shock
Irreversible damage. Patient will rapidly lose consciousness and display lack of palpable pulses,
cold/mottled skin, dusky extremities, slow/shallow respiration's, and unmeasurable oxygenation.
Be mindful of the high mortality rate, end of life issues, and managing complications.
9. Manifestations of Refractory Shock
Decreased MAP, specific organ failure, anuria, slow/weak pulse, ARDS, bleeding, coagulation
dysfunction, coma
10. What are the primary types of shock?
Hypovolemic, Cardiogenic, and Distributive.
11. Hypovolemic Shock
Lack of circulating volume. Occurs when blood or other fluid is lost, such as in cases of burn or
gun victims, but it can also occur because of dehydration, V/D, NG tubes. This is the MOST
COMMON type of shock. In the early stages, there will be subtle vital sign changes, but in the
end, there will be external signs
12. Hypovolemic shock nursing diagnosis
Deficient fluid volume [Show Less]