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Respiratory Therapy CRT Exam Questions And Answers
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Respiratory Therapy CRT Exam Questions And Answers
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Respiratory Therapy CRT ExamQuestions And Answers
What is changed when a pat is on PV? - -Change the set pressure increased
or decreased to adjust Vt
-What equation is used to reduce PaCo2 on a pat vented with VC ventilation
when the rate is needing to be changed due to volume being high enough? -
-Desired F= known F X PaCo2/desired PaCo2
-What is the equation to find desired Vt in VC ventilation? - -Desired Vt=
known Paco2 X Known Vt/desired PaCo2
-What is increased to increase Vt with a PVC time cycled ventilation? - -With
pressure control ventilation PCV the set pressure is generally increased to
obtain the targeted Vt. PCV is Time cycled If It is short increasing it will
increase volume delivery without increasing pressure.
-What do you change if Vt and pressure plateu are already high to improve
PaCo2? - -frequancy
-What will need to be changed on a ventilated pat on VC and PV to decrease
the PaCo2? - -minute volume Ve
-What are the causes of respiratory acidosis in a nonventilated patient? - -
pulmonary edema
pneumonia
asthma
chest wall abnormalities
neuromuscular disorders
central nervous system problems
-What two values are effected if patient has respiratory acidosis and Va is
not adequante on volume ventilation and pressure ventilation? - -PaCo2
elevated above >45mmhg and pH decreased <7.35
-What two things can be adusted when a patient is on PCV with respiratory
acidosis? - -Inspiratory time set pressure reaches alveolar level if this doesnt
work set pressure increased to improve volume
-What change in ventilation is made to ventilator to correct respiratory
alkalosis or acidosis? - -Vt or rate
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