Practice CRT exam/46 answered
Questions Distinction Graded
The MD orders a 35% aerosol mask to be set up for a pt who requires an insp
flow to which the flowmeter must be set to meet this pt's insp flow demands?
- -8 L/min -A neonate is receiving O2 via 50% O2 hood and has a PaO2 of 43 torr and a
PaCO2 of 40. The RT should recommend... - -Start CPAP of 4 cmH2O and 50% O2 -A pt arrives in the ED after being pulled fr a burning house. The RT should obtain which measurements to best determine the severity of the pt's smoke
inhalation? - -HbCO -The MD has ordered 40% O2 to be admin to an active 3 yo. The best delivery device for this pt is... - -O2 tent -The ability of the pt to follow instructions would mean the pt can... - -
Performance of tasks when asked -You suspect a pt may have a pulmonary embolism. What is the most appropriate diagnosis for this condition? - -V/Q lung scan
(The best answer can be pulmonary angio graph) -To most effectively increase a pt's alveolar min ventilation while the pt is using a ventilator in the control mode, you would increase... - -Tidal volume -Failure to hyperoxygenate a pt on a ventilator before ET suctioning may result in: 1. Hypocarbia 2. Hypoxemia 3. Hypertension 4. Bradycardia - -
Hypoxemia and Bradycardia -The most reliable method of determining whether the lungs of a pt receiving mech ventilation are getting stiffer and harder to ventilate is by measuring the... - -Static lung compliance -If not cleaned properly, which device is most likely to contaminated a pt's airways with bacteria? - -Heated jet neb -A 60kg (132#) 52 yo man is admitted to ICU for the treatment of refractory hypoxemia. Hi is currently using a vent in the pressure support mode @ 10 cmH2O and FiO2 0.6. Other data: pH 7.49; PaCO2 30; PaO2 59; HR 120; RR 26. What should the RT do next? - -Institute 5 cmH2O PEEP -A 70kg (156#) pt is receiving mech vent. The RT notes the pt's SpO2 drops from 97% to 86%. The R.lung is expanding more than the left, w/clear breath
sounds on the right but diminished ones on the left. The pt's ET tube is taped
@ the 29 cm mark @ the lip. What should the RT do next? - -Withdraw the tube to the 24 cm mark -The pt in on a volume control vent w/ the following data: VT 750ml; SIMV; Vent rate 4/min; Spont rate 12/min; FiO2 0.35; pH 7.29; PaCO2 50; PaO2 72;HCO3 26. What should the RT do next? - -Increase the vent rate to 8/min -Advantages of low-pressure, high-volume ET tube cuffs include: 1. Easier insertion into the airway 2. Less occlusion to tracheal blood flow 3. Improved distribution of alveolar air - -Less occlusion to tracheal blood flow -Tracheal secretions tends to dry out in an intubated pt when insp air has what characteristics: 1. An absolute humidity of 24 mg/L of gas 2. A water vapor pressure of 47 mmHg 3. 50 mg of particulate water per liter of gas 4. A
relative humidity of 100% @ 25 degrees C - -An absolute humidity of 24 mg/L of gas and a relative hummidity of 100% @ 25 degrees C -It is important to monitor airway pressure in a pt receiving mech vent b/c it best reflects... - -Lung compliance -A 6 d.o. neonate of 30 wks gestational age is experiencing frequent periods
of apnea w/ desaturation. What medication should the RT recommend? - -
Theophylline -To prevent the obstruction of venous blood flow from the trachea, ET tube cuff pressure should not exceed... - -20 mmHg or 25 cmH2O -A post-op 46 yo, 80 kg (176#) pt is breathing spont @ a rate of 30/min and including data: FiO2 0.5; pH 7.29; PaCO2 62; PaO2 64; HCO3 29. Mech vent is instituted w/a VT 800ml. The SIMV rate should be set on... - -12/min -The RT is asked to deliver a med to a pt with CF via nonpressurized aerosol that will improve the mobilization of sputum. What is recommended? - -
Acetylcysteine (Mucomyst -The therapeutic use of O2 may aid in accomplishing: 1. Decreasing the WOB 2. Decrease myocardial work 3. Prevent ARDS 4. Increase the pt's RR - -Decrease the WOB, decrease myocardial work (and decrease hypoxemia) -Inspiratory stridor is the major clinical sign of... - -Glottic edema
Questions Distinction Graded
The MD orders a 35% aerosol mask to be set up for a pt who requires an insp
flow to which the flowmeter must be set to meet this pt's insp flow demands?
- -8 L/min -A neonate is receiving O2 via 50% O2 hood and has a PaO2 of 43 torr and a
PaCO2 of 40. The RT should recommend... - -Start CPAP of 4 cmH2O and 50% O2 -A pt arrives in the ED after being pulled fr a burning house. The RT should obtain which measurements to best determine the severity of the pt's smoke
inhalation? - -HbCO -The MD has ordered 40% O2 to be admin to an active 3 yo. The best delivery device for this pt is... - -O2 tent -The ability of the pt to follow instructions would mean the pt can... - -
Performance of tasks when asked -You suspect a pt may have a pulmonary embolism. What is the most appropriate diagnosis for this condition? - -V/Q lung scan
(The best answer can be pulmonary angio graph) -To most effectively increase a pt's alveolar min ventilation while the pt is using a ventilator in the control mode, you would increase... - -Tidal volume -Failure to hyperoxygenate a pt on a ventilator before ET suctioning may result in: 1. Hypocarbia 2. Hypoxemia 3. Hypertension 4. Bradycardia - -
Hypoxemia and Bradycardia -The most reliable method of determining whether the lungs of a pt receiving mech ventilation are getting stiffer and harder to ventilate is by measuring the... - -Static lung compliance -If not cleaned properly, which device is most likely to contaminated a pt's airways with bacteria? - -Heated jet neb -A 60kg (132#) 52 yo man is admitted to ICU for the treatment of refractory hypoxemia. Hi is currently using a vent in the pressure support mode @ 10 cmH2O and FiO2 0.6. Other data: pH 7.49; PaCO2 30; PaO2 59; HR 120; RR 26. What should the RT do next? - -Institute 5 cmH2O PEEP -A 70kg (156#) pt is receiving mech vent. The RT notes the pt's SpO2 drops from 97% to 86%. The R.lung is expanding more than the left, w/clear breath
sounds on the right but diminished ones on the left. The pt's ET tube is taped
@ the 29 cm mark @ the lip. What should the RT do next? - -Withdraw the tube to the 24 cm mark -The pt in on a volume control vent w/ the following data: VT 750ml; SIMV; Vent rate 4/min; Spont rate 12/min; FiO2 0.35; pH 7.29; PaCO2 50; PaO2 72;HCO3 26. What should the RT do next? - -Increase the vent rate to 8/min -Advantages of low-pressure, high-volume ET tube cuffs include: 1. Easier insertion into the airway 2. Less occlusion to tracheal blood flow 3. Improved distribution of alveolar air - -Less occlusion to tracheal blood flow -Tracheal secretions tends to dry out in an intubated pt when insp air has what characteristics: 1. An absolute humidity of 24 mg/L of gas 2. A water vapor pressure of 47 mmHg 3. 50 mg of particulate water per liter of gas 4. A
relative humidity of 100% @ 25 degrees C - -An absolute humidity of 24 mg/L of gas and a relative hummidity of 100% @ 25 degrees C -It is important to monitor airway pressure in a pt receiving mech vent b/c it best reflects... - -Lung compliance -A 6 d.o. neonate of 30 wks gestational age is experiencing frequent periods
of apnea w/ desaturation. What medication should the RT recommend? - -
Theophylline -To prevent the obstruction of venous blood flow from the trachea, ET tube cuff pressure should not exceed... - -20 mmHg or 25 cmH2O -A post-op 46 yo, 80 kg (176#) pt is breathing spont @ a rate of 30/min and including data: FiO2 0.5; pH 7.29; PaCO2 62; PaO2 64; HCO3 29. Mech vent is instituted w/a VT 800ml. The SIMV rate should be set on... - -12/min -The RT is asked to deliver a med to a pt with CF via nonpressurized aerosol that will improve the mobilization of sputum. What is recommended? - -
Acetylcysteine (Mucomyst -The therapeutic use of O2 may aid in accomplishing: 1. Decreasing the WOB 2. Decrease myocardial work 3. Prevent ARDS 4. Increase the pt's RR - -Decrease the WOB, decrease myocardial work (and decrease hypoxemia) -Inspiratory stridor is the major clinical sign of... - -Glottic edema
