5. The characteristics of microcirculation in late shock stage are:
A: A. Increased forward resistance and significantly decreased perfusion and slower blood flow through the capillary network.
B: B. Increased rear resistance and significantly increased perfusion and slower blood flow through the capillary network.
C: C. The microvessels are paralytically dilated, no perfusion and blood flow through the capillary network.
D: D. Continuous spasm and contraction of microcirculation.
A: A. Increased forward resistance and significantly decreased perfusion and slower blood flow through the capillary network.
B: B. Increased rear resistance and significantly increased perfusion and slower blood flow through the capillary network.
C: C. The microvessels are paralytically dilated, no perfusion and blood flow through the capillary network.
D: D. Continuous spasm and contraction of microcirculation.
举一反三
- The "autoinfusion" at the early stage of shock is due to A: constriction of capacity vessels B: increased return of tissue fluid C: constriction of blood storage organs such as liver and spleen D: increased capillary hydrostatic pressure E: microcirculation congestion
- Which indicator can be mainly reflected by the level of systolic blood pressure in general? A: Cardiac stroke volume B: Heart rate C: Peripheral resistance D: Capillary pressure in the microcirculation
- What best describes the normal blood flow to the lungs in a supine patient? （ ） A: largely uniform B: decreased flow to apices relative to bases C: increased flow to upper lobes
- Which is the following is NOT mentioned as a consequence of too little sleep? A: Dramatically B: Dysregulation in blood pressure C: increased blood flow to the brain D: increased inflammation in the body
- Which is the major factor affecting the resistance of blood flow?() A: Velocity of blood flow B: The length of blood vessel C: Viscosity of blood D: The diameter of arteriole E: The compliance of aorta