Answer :
Final answer:
Excessive ventilation in cardiac arrest patients should be avoided because it can lead to reduced cerebral blood flow due to low blood carbon dioxide levels, decrease cardiac output due to increased intrathoracic pressure, and cause strain on respiratory muscles through hyperpnea.
Explanation:
Excessive ventilation should be avoided in cardiac arrest patients for several reasons. First, hyperventilation, or an increased ventilation rate, leads to abnormally low blood carbon dioxide levels. This causes a high, or alkaline, blood pH, which can lead to complications like reduced cerebral blood flow due to blood vessels constriction in the brain, shifting the oxygen dissociation curve and thereby making oxygen less available to the cells.
Secondly, excessive ventilation increases Inspiratory Capacity (IC) and might lead to an increase in intrathoracic pressure, reducing venous return to the heart and subsequently lowering cardiac output, impairing the coronary and cerebral perfusion pressures that are vital during a cardiac arrest situation.
Lastly, hyperventilation can lead to a condition known as hyperpnea where there is an increased depth of ventilation not matching the body's metabolic demands, failing to significantly alter blood oxygen or carbon dioxide levels, yet causing unnecessary strain on the respiratory muscles and increasing energy consumption.
Learn more about Excessive Ventilation here:
https://brainly.com/question/2624209
#SPJ11
