NURSING shock 2 code 420 exam with questions and answers (100% solved)

NURSING shock 2 code 420 exam with questions and answers (100%
solved)

, NURSING shock 2 code 420 exam with questions and answers (100% solved)




Shock
- Impaired tissue perfusion
- Imbalance of cellular oxygen supply and
demand Shock begging
- When the cardiovascular system fails
- Blood volume → trauma
- Myocardial contractility lack→ acute HF
- Blood flow → tonality
- Vascular resistance → venous return compromised
During shock
- Poor tissue perfusion convert aerobic to anaerobic metabolism which cause
- Defense mechanism: anaerobic breaks muscle fiber to release carb to provide energy
- Organ dysfunction due to decreased blood flow through the capillaries
** To identify if anaerobic started check lactic acid lab value
- Elevated lactic acid → supply and demand is compromised = LATER SIGN

Perfusion triangle
1. Blood → content function
- Loss of blood or plasma → not enough volume to perfuse
- Blood loss = decrease SV = Decrease CO and perfusion ]
2. Heart → pump function
- Damage to heart → loss ability to contract (move foreward)
- Decreased SV and CO
3. Blood vessels → container function
- All Vessels dilate at once →
- Loss tone = preload (venous return) compromised

Stages of shock
Stage → CO will always be compromised

1: Initiation Decreased CO
Unrecognizable signs → altered MS
No change in labs, VS, electrolytes

2: Compensatory
Symptoms become more apparent
Change in VS
Neural compensation: *Tachycardia, *altered MS, lethargy, contractility, vasoconstriction, Shunting blood to
the vital organs, Decreased BP