QUESTIONS AND VERIFIED ANSWERS |100% CORRECT |
ALREADY GRADED A
What is shock? Ans✓✓✓Inadequate perfusion at the tissue level
resulting in a decreased supply of O2 and nutrients required to maintain
the metabolic needs of the body.
What are the classifications of shock? Ans✓✓✓Hypovolemic,
Cardiogenic, Obstructive, Distributive.
What is the primary goal of compensatory mechanisms in shock?
Ans✓✓✓To maintain perfusion of the heart, brain, and kidneys while
compromising perfusion of other organs.
What are the compensatory mechanisms in the vascular response to
shock? Ans✓✓✓Epinephrine and norepinephrine lead to sympathetic
stimulation, baroreceptor inhibition, arteriole constriction, and increased
total peripheral resistance.
What is the renal response during shock? Ans✓✓✓Renal ischemia
triggers the renin-angiotensin system, leading to vasoconstriction and
aldosterone release, causing sodium and water retention.
What are the stages of shock? Ans✓✓✓Stage I: Initiation, Stage II:
Compensatory, Stage III: Progressive, Stage IV: Refractory.
, What characterizes Stage I: Initiation of shock? Ans✓✓✓Hypoperfusion
with inadequate delivery or extraction of oxygen, no obvious clinical
signs, and is early and reversible.
What occurs in Stage II: Compensatory shock? Ans✓✓✓Sustained
reduction in tissue perfusion with initiation of compensatory
mechanisms, including neural, endocrine, and chemical responses.
What are the effects of Stage III: Progressive shock? Ans✓✓✓Increased
capillary hydrostatic pressure, failure of compensatory mechanisms,
interstitial edema, and decreased coronary perfusion.
What defines Stage IV: Refractory shock? Ans✓✓✓Prolonged
inadequate tissue perfusion that is unresponsive to therapy, contributing
to multiple organ dysfunction and death.
What are the clinical presentations of hypovolemic shock?
Ans✓✓✓Pale, waxen skin; collapsed neck veins; weak and thready
pulses; and delayed capillary refill.
What is the treatment priority for hypovolemic shock? Ans✓✓✓ABC's
first, followed by identifying and controlling the source of fluid/blood
loss and administering volume.