Review deck Flashcards
The circle of Willis is made up of
vertebral & internal carotid flow
Normal ICP is
5 to 15
Calculation of CPP is
CPP= MAP-ICP
CVP may be substituted for ICP
Increased CPP causes cerebral _________
vasoconstriction limiting CBF
Normal CPP is
80-100 mmHg
* consider what you would need to keep MAP at to achieve this
CBF remains constant at a MAP of
60-160 due to autoregulation
Total volume of CSF is
150 mL
The role of CSF is to
protect CNS from trauma
The Monro-Kellie hypothesis:
blood, CSF, and brain tissue are in a state of volume equilibrium such that any increase in volume of one of the cranial constituents must be compensated by a decrease in volume of another to prevent a rise in ICP
Cushing’s triad:
irregular respirations
hypertension
bradycardia
If a cerebral aneurysm rupture occurs, give ______ for brain protection
propofol
Adverse effects of Mannitol include
acidosis
pulmonary edema
Avoid giving this drug to patients with head trauma
ketamine
_______ is a good drug to give for patients with burns who have to undergo repeat dressing changes
ketamine
If a patient is on phenytoin, a NMBD will
last longer
Describe the sensitivity of VAE monitoring from most sensitive to least sensitive
TEE precordial doppler ETCO2 PAP CVP MAP