Respiratory Therapy CRT Exam questions with 100% Pass
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Respiratory Therapy CRT Exam questions with 100% Pass
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 hi...
Respiratory Therapy CRT Exam questions with 100% Pass
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
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
What change is made right away when a patient is on mechanical ventilatio? -
✔️✔️minute volume Ve
What should a therapist do if the heart rate increased during suctioning? -
✔️✔️immediately stop suctioning and provide 100% O2
For above the cuff suctioning, what pressure is left on to continuously suction? -
✔️✔️20mmHg
What is the correct size of catheter used to suction? - ✔️✔️1/2 the size of the ET tube.
equation for a size 8 ET tube 3x8=24 24/2=12Fr Size 12Fr is used
A patient with CHF has what type of secretions? - ✔️✔️Thin white or pink frothy
secreations but won't block the airway
What is the normal ratio of Vd to Vt (Vd/Vt)? - ✔️✔️0.2 to 0.4
Where does the contraction start of the ventricle? - ✔️✔️Starts at Q
What is pip? - ✔️✔️Peak inspiratory pressure, this is the peak at which the flow is given
at an inspiration
What is SpO2?` - ✔️✔️Saturation of O2 on the Hb
What is an HME? - ✔️✔️artificial nose humidity, filter,warms
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