9) When a patient is breathing with the assistance of a ventilator, medical staff monitor the blood pH verycarefully in order to adjust the settings on the ventilator. If the patient develops an acidosis (high blood H+concentration), the appropriate adjustment to restore pH would be to A)increase inspired Po2B)increase inspired Pco2C)decrease tidal volumeD) increase minute ventilation
The relationship between pH, bicarbonate and CO2 was listed on the first page with the other equations: H 2 O + CO 2 <=> H 2 CO 3 <=> H + + HCO 3 -
If the patient is acidic, then there is an excess of H+. Removing CO2 would shift the equilibrium to the left and restore pH. Of the options listed, increasing minute ventilation would increase the rate of CO2 removal from thealveoli. Respiratory therapists who monitor the ventilators in hospitals devote hours and hours to learning the intricacies of pH regulation through ventilation. 10) Another parameter that is monitored while a patient is on a ventilator is the amount of alveolar ventilation.Based on the frequency and tidal volume, which patient below has the highest level of alveolar ventilation? 11) During a panic attack, patients will hyperventilate. Doctors used to recommend breathing into a paper bag tohelp the patients. Why did they suggest this?
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- Spring '18
- Heat Transfer, alveolar ventilation, skin temperature, patient retain CO2