Term
NASAL CANNULA ADULT/PEDS MAKE SURE YOU GRAB RT SIZE GREEN CAPILARY TUBE IS FOR HIGH FLOW CLEAR CAPILIARY TUBE FOR LOW FLOW 0.5 LPM - 6 LPM SET FLOW ON FLOW METER CAN HUMIDIFY AT ANY LPM RATE ALWAYS HUMIDIFY ↑4 LPM |
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Definition
SIMPLE MASK - LOW FLOW 0.35 & 0.50 Fi02. INFANT/ADULT SIZE MUST RUN AT MIN. OF 5LPM TO FLUSH OUT CO2 SEEN MOSTLY IN TRANSPORT PATIENTS |
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Term
VENTI MASK IS HIGH FLOW WORKS BY AIR ENTRAINMENT/JET MIXING USING BERNOULLI'S PRINCIPLE RANGES FROM 24% TO 55% EVERY % HAS ITS OWN RATIO AND LPM THERE ARE VARYING FIO2 AND LITER FLOWS ON PORT CAN BE HUMIDIFIED BUT NOT DONE SO NORMALLY GOOD FOR COPD'ERS WHO REQ HIGH CONCENTRAION OF 02 AT A PRECISE RATE |
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Definition
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Term
LARGE VOLUME NEBULIZER - A/K/A BLAND AEROSOL HIGH HUMIDITY. LARGE CORAGATED TUBING- PATIENTS REQUIRE PRECISE FiO2 DELIVERS AEROSOLIZED NORMAL SALINE OR STERILE WATER BY JET MIXING. IS A HIGH FLOW SYSTEM REQUIRES THAT THE WATER IN TUBING BE EMPTIED OCCASSIONALLY |
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Definition
LARGE VOLUME NEBULIZER CAN BE USED WITH A TRACH COLLAR ON A FAIRLY STABLE TRACH PATIENT FACE MASK FOR PATIENT COMFORT PED/ADULT FACE TENT- PATIENT IS CLOSTERPHOBIC, FACIAL INJURY, POST FACIAL SURGERY T-PIECE - PT ON ENDO TRACH TUBE W/O VENTILATOR, |
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Term
ULTRA SONIC NEBULIZER USED FOR BRONCHO HYGIENE/THIN SECRETIONS DELIVERY OF BLAND AEROSOL/HUMDITY, FINE AEROSOLIZED PARTICLES, PIEZOELECTRIC CRYSTAL AT BOTTOM OF UNIT CARE/MONITOR PATIENT FOR OVER HYRDRATION BRONCHOSPASM UNIT PULLS IN AMBIENT AIR, CAN BE USED WITH NASAL CANNULA FOR O2 ADMIN SIMULATIONOUSLY AMPLITUDE/FREQUENCY FIO2 OVER 50 SET UP TANDEM OR USE MYSTI OX |
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Definition
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Term
CONTINUOUS NEBULIZER - MED CUP UP TO 20ML PROVIDES TX /MEDS OR HIGH HUMIDITY TX ARE ABOUT ONE HOUR LONG LARGEST VOLUME MED CUP (USED MAINLY IN ED AND NICU 240ML/4-8HR TX MONITOR PATIENT DURATION OF TX, USUALLY PT IS WIRED TO EKG FOR MONITORING AND SPO2, TACHYCARDIA IS A POTIENTIAL PROBLEM, ALSO MEASURE SERUM POTASSIUM LEVELS Q4H |
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Definition
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Term
NON REBREATHER MASK - RESERVOIR BAG ATTACHED TO MASK TO PROVIDE 100% (DEPENDS ON PT Vt) MUST BE RUN AT 5 LPM BUT CAN RUN UP TO 15 LPM. LITER FLOW RANGE 8-15LPM-A LOW FLOW DEVICE VALVES ARE EIHER ALL IN PLACE OR ALL OFF, IF TAKEN OFF, TAPE THEM TO THE BAG ANS SAVE RESEVIOR BAG REQUIRES A GOOD PULSATION WITH INSPIRATION AND EXPIRATION |
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Definition
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Term
WEANING STEPS NRB PRB VENT NC NONE |
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Definition
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Term
IF YOU ENCOUNTER A PT IN TROUBLE, EX: CYANOSIS, SHALLOW RESPS AND OUT OF IT, DON'T LEAVE THE PT'S ROOM! CHECK THE PULSE/CALL RN- HIT THE LIGHT OR YELL FOR SOMEONE) AND GET THE PTS CODE STATUS, IF YOU HAVE A SAT MONITOR YOU CAN APPLY THAT. |
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Definition
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Term
the power source used by the vent provides energy to perform the work of ventilating the patient, ventilator power sources include |
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Definition
electrical, pneumatic and dual control |
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Term
early vents such as the tank ventilator and chest curiass were designed to operate as |
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Definition
negative pressure ventilators |
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Term
true or false
there are two types of pneumatically powered ventilators: pnuematic and fluidic |
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Definition
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Term
true/false: most current icu vents use gas to provide the driving force or flow to the patient, and they use an electrically powered microprocessor to control special valves that regulate the delivery of gas for inspiration and expiration |
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Definition
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Term
true/false: closed-looped ventilator logic systems are called unitelligent because they cannot be programmed to respond to changing conditions |
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Definition
false
unintelligent ventilator systems are the open loop systems |
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Term
a drive mechanism for positive pressure ventilators includes all of the following except:
a. rotary drive piston
b. spring-loaded bellows
c. flow-controlling solenoid
d. chest cuirass vacuum |
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Definition
d. chest cuirass vacuum
this is a negative pressure system |
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Term
the major advantage of negative pressure vents is:
a. easse of patient trigger
b. tidal volume control
c. an endotracheal tube isn't required
d. access to patient chest |
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Definition
d. access to patient chest
there is no easy access with negative pressure systems |
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Term
if the internal circuit of a ventilator allows the gas to go directly from its power source into the patient, it is called a |
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Definition
single circuit ventilator |
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Term
a vent for which the primary power source genterates a gas flow that compresses another mechanism, such as a bag or bellows, and the gas contained in the bag or bellows goes to the patient is termed a |
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Definition
double circuit ventilator |
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Term
TRUE/FALSE
the exhalation valve in most icu ventilators is mounted inside the ventilator where it is not visiible. An internally mounted exhalation valve is usually controlled by a mechanical device such as a solenoid valve |
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Definition
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Term
ventilator compressors are capable of reducing or increasing internal volumes, resulting in a change in pressure. These compressors can use any of the following mechanisms except
a. piston-driven mechanisms
b. rotating blades, vanes
c. moving diaphragms or bellows
d. all of the above |
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Definition
d. all of the above mechanisims can be used |
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Term
some ventilators have built - in air compressors. These built in compressors can be used to power the ventilator when |
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Definition
a 50 psi air wall outlet is not available |
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Term
TRUE/FALSE
modern icu ventilators use flow control valves. These valves control or direct gas flow by opending and closing either completely or in small increments |
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Definition
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Term
flow control valves have a rapid response time and great flexibility of flow control. Flow control valves include. |
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Definition
proportional solenoid valves
sepper motors with valves
digital valves with on-off configurations
(they do not include piezoelectric valves) |
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Term
the clinician who operates a ventilator sets certain knobs or controls using a control panel to establish the pressure tan the pattern of gas flow directed from the device to the patient. This statement best describes the |
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Definition
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Term
a breath that is triggered, limited and cycled by the mechaniccal ventilator is what classification of breath |
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Definition
this is a mandatory breath.
not an assisted, not spontaneous and not synchrionized |
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Term
a breath that is patient triggered ventilator controlled and ventilator cycled is what classification of breath? |
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Definition
this is an assistad breath
not controlled (pt locked out)
not spontaneous and not pressure supported |
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Term
a breath that is triggered, contolled and ended by a patient is which type of breath? |
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Definition
spontaneous breath,
not assisted, not controlled, not synchronized |
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Term
during pressure-controlled ventilation, the patient's airway resistance increases; this causes what to occur |
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Definition
the tidal volume will decrease
pressure will be unaffected, the pressure is a preset unfluctuating level of cmh2o |
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Term
during Volume-controlled ventilation the patient's lung compliance improves; this causes what to happen? |
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Definition
tbe tidal volume will increase, improved lung compliance means more compliant, easier for the pressure to shove gas into the lungs, more distendable, they'll hold more gas which is being pushed into the lungs by a set/controlled pressure |
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Term
how many variable are there in mechanical ventilation and what are they |
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Definition
4: pressure, flow, time and volume |
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Term
what variable begins the inspiratory phase of a ventilator breath? |
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Definition
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Term
the variable that ends the inspiratory phase is called what? |
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Definition
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Term
the two most common cycle variable for adult ventilators in cmv mode are |
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Definition
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Term
decreased lung compliance during time-cycled PCV will cause |
|
Definition
decreased volume delivery |
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Term
decreased lung compliance during volume-cycled, volume-controlled ventilation will cause |
|
Definition
increased airway pressure |
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Term
a ventilator variable that cannot be exceeded during inspiration is known as what |
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Definition
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|
Term
the ventilator mode that is either patient triggered or time triggered and allows the patient to breathe spontaneously between mandatory ventilator breaths is known as |
|
Definition
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Term
patients suffereing fromsleep apnea are most commonly treated with |
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Definition
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Term
the amount of volume delivered to the lungs with pressure control mode is primarily dependant on |
|
Definition
the compliance of the lungs |
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Term
pursed lip breathing can be mimicked for an intubated patient by using |
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Definition
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Term
an I:E ratio that will provide the greatest amouont of time for exhalation is
a. 1:2
b. 1:3
c. 3:1
d. 1:4 |
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Definition
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Term
the inspiratory pause is occasionally used to help
|
|
Definition
increase the peripheral distribution of gas and improve oxygenation |
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Term
expiratory retard would be most benefical for a patient who suffers from what disease |
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Definition
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Term
PEEP is the application of pressures above ambient to improve oxygenation in the spontaneously breathing patient |
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Definition
false
peep increases surface area in the alveoli, improving gas exchange |
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Term
a ventilator that develops a constant (square wave) flow pattern that is not influenced by changes in compliance or resistance is a |
|
Definition
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Term
which of the following variables causes the ventilator to begin expiration? |
|
Definition
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Term
which variable causes the ventilator to start inspiration |
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Definition
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Term
i:e ratio if
rr 15bpm
Ti: 1.5 secs |
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Definition
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Term
which variable sustains inspiration |
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Definition
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Term
which of the following would you use for a trauma victim with a crushed chest injury |
|
Definition
a volume cycled ventilator |
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Term
a patient is receiving vc-cmv his pao2 is only 51mmhg on fio2 of 100% and 15cmh2o of peep, his current alveolar pressure is 45cmh2o what would you now suggest to improve his oxygenation without causing lung damage |
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Definition
switch to pc-cmv with 25 cmh2o set pressure, using 15 peeop and fio2 of 100%, allow the patient's paco2 to increase if necessary |
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Term
the ventilator mode that is either patient triggered or time triggered and allows the patient to breath spontaneously between mandatory ventilator breaths is known as |
|
Definition
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|
Term
patients suffering from sleep apnea are most commonly treated with |
|
Definition
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Term
the mode of ventilation used for noninvasisve postive pressure ventilations is |
|
Definition
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Term
a patient is being ventilated with vc-cmv mode. if the ventilator rate is decreased what should be anticipated in the absence of patient triggering |
|
Definition
increase in patients' paco2 and decrease in alveolar ventilation
rr will decrease/causing co2 to rise
increase co2 causes decrease in alveolar ventilation |
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Term
during vc-cmv which will increase peak pressure
1. increased airway resistance
2. decreased airway resistance
3. increased lung compliance
4. decreased lung compliance
5. increased inspiratory flow rate
6. decreased inspiratory flow rate |
|
Definition
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Term
75kg ibw male patient on mechanical ventilation has the follwoing blood gases and ventilator settings: ph 7.46, Vt - 1000ml, paco2-33mmhg, vc-simv- 6bpm, patient rr 13 bpm pao2 66 mmhg fio2 60% and hco3 25meq/l and peep of 0 appropriate thereapy would be to |
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Definition
adjust and decrease the Vt, 1000ml is too much for a75kg male to initially ventilate with |
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Term
a clinican has set a ventilator so that th inspiratory time is 33% of the total cycle time. this would result in an I:E ratio of |
|
Definition
1:2
33% is 1/3, there are 3 thirds in a whole,
one for Inspiration and two for exhalation |
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|
Term
psv modes of ventilation include all of the following except:
a. vc-simv
b. vc-cmv
c. psv
d. mmv |
|
Definition
b. volume control - controlled mandatory ventilation
all other modes are spontaneous |
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Term
TRUE/FALSE
\dual control pressure ventilation, with a breath by beath volume target is currently available on the majority of nwer genteration ventilators. This mode ocmes in two forms: pressure-regulated volume control and volume support both are entirely spontaneous |
|
Definition
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Term
a patient has a strong respiratory drive and is intubated to protect his airway what would be an appropriate mode for this patient? |
|
Definition
PSV with an inspiratory pressure of 15cmh2o |
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Term
a patient who is triggering each inspiration for a ventilator in the VC-CMV mode will be able to establish her or her own |
|
Definition
frequency and minute ventilation |
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Term
a patient being maintained in the pc-simv mode will |
|
Definition
recieve a mechanical breath at preset time intervals |
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|
Term
psv, when appropriatedly set, results in all of the folowing advantages except
a. the inspiratory phase ends when a preset minimal flow is reached
b. the resulting Vt remains constant
c. each breath is patient triggered
d. the peak flow is determined according to patient inspiratory demand |
|
Definition
b. the resulting Vt remains constant. Volume changes in pressure control |
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Term
TRUE/FALSE
psv should be avoided in patients with ventilatory muscle fatigue and when a patient has a high work of breathing |
|
Definition
|
|
Term
|
Definition
|
|
Term
what are the calculations for BSA |
|
Definition
female 3.5 x bsa - Ve
male 4.0 x bsa - Ve
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|
Term
what is the calculation for Vt on the servo 900c |
|
Definition
|
|
Term
placing asthmatic on mv, according to pilbeam and nbrc what Vt rages would you choose and are there any other considerations (hint there are two)
|
|
Definition
Vt 8-10 ml/kg/ibw
RR:
Te: exhalation time longer tan normal for better more adequate exhaling, reduces airtrapping |
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|
Term
lower flow rates will do what to the inspiration time |
|
Definition
increase the inspiration time |
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|
Term
high flow rates will effect a mechanical breath in three ways: |
|
Definition
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|
Term
two constant flow patterns are: |
|
Definition
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|
Term
rr 20, set Ti% of 20 and pause time % 5, what would I time be and I:E ratio be? |
|
Definition
60/20=3tct
i:.75
e=2.25sec
ratio 1:3
Itime is 20%+5% = 25% (.35 x 3sec) |
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|
Term
which vent is controlled by fludic logic |
|
Definition
|
|
Term
according to equation of motion of respiratory system a ventilator can control all of the following variables except |
|
Definition
|
|
Term
if the pressure waveform of a ventilator remains the same when a patient's lung mechanics change then what is the ventilator?
|
|
Definition
|
|
Term
which of the following are caracteristics of a ventilator that functions as a true volume controller:
a. its pressure waveform changes with changes in lung mechanics
b. it measures and uses volume to control the volume waveform
c. its volume waveform stays constant with changes in the lung mechanics |
|
Definition
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|
Term
which of the following are characteristics of a ventilator that functions as a true volume controller
1. its pressure waveform changes with changes in lung
2. it measures and uses volume to control the volume waveform
3. its volume waveform stays constant with changes in the lung |
|
Definition
|
|
Term
which of the following are characteristics of a ventilator that functions as a true volume controller
1. its pressure waveform changes with changes in lung mechanics
2. it measures and uses volumes to control the volume waveform
3. its volume waveform stays constant with changes in lung mechanics |
|
Definition
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|
Term
when you adjust the pressure drop necessary to trigger a breath on a ventilator what are you adjusting on the machine? |
|
Definition
sensitivity
normally set -1cmh2o to -2cmh2o |
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|
Term
all ventilators offer a mode that intermixes spontaneous breathes with ventilator breaths, this is called |
|
Definition
|
|
Term
all adult ventilators offer a way to augment spontaneous breaths with a boost, this is called |
|
Definition
|
|
Term
all adult ventilators offer the choice of ________controlled ventilator breaths and____________ controlled ventilator breaths for any mode that offers a machine breath |
|
Definition
|
|
Term
when a rate control (rr) is used _____ and _______ times will vary according to control settings such as _________ and _______ |
|
Definition
I time and E time
volume and flow |
|
|
Term
indications for mechanical ventilation include all of folowing except
a. apnea
b. acute ventilatory failure
c. severe oxygenation deficit
d. metabolic acidosis |
|
Definition
|
|
Term
hazards of mechanical ventilation include all of the following except
a. o2 toxicity
b. volutrauma and barotrauma
c. permissive hypercapnea
d. compromised cardiac output and right heart venous return |
|
Definition
c. permissive hypercapnia |
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|
Term
TRUE/FALSE
reducing wob for a short period of time may be a secondary indication for mechanical ventilation |
|
Definition
|
|
Term
TRUE/FALSE
hypoxemic ventilatory insufficiency accompanied by hypocarbia and tachypnea should not be an indication for mechanical ventilation |
|
Definition
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|
Term
ED patient, presents w/paralysis of lower extremities/progressivly worsening, VC is 12ml/kg MIP is -24cmh2o, spo2 is 92%. ABG are not avail yet, GB is suspected what therapy is patient most likely going to require |
|
Definition
Intubation and mechanical ventilation |
|
|
Term
which conditions affecting the CNS are associated with reduced drive to breath |
|
Definition
general anesthesia, stroke, narcotics |
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|
Term
a fvc of less than ____________ indicates the patient may need ventilatory support |
|
Definition
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|
Term
pt in ed, mva, unconscious and nonresponsive, abg on nonrebreather show a pao2 of 45mmhg, paco2 of 93mmhg and ph of 7.09 what will recommend |
|
Definition
intubation and mechanical ventilation |
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|
Term
a pt with hx of copd and co2 retention is admitted to the ed by ambu, on a partial rebreather, he is sleeping but rouses when talked to. He remains lethargic, hr is 100bpm, bp is 128/78mmhg, rr is 5bpm, bilateral crackles and wheezes but diminished, immediate treatment recommendation |
|
Definition
change to a venturi mask and coach the patien to breathe |
|
|
Term
what is the most sensitive test or procedure to predict the need for mechanical ventilatory supoprt for a patient with acute neuromuscular disease |
|
Definition
maximum inspiratory force MIP |
|
|
Term
|
Definition
|
|
Term
an adult pat o2 NC 6lpm abg ph 7.29, paco2 79mmhg, hco3 39, be 11, pao2 87mmhg and sao2 95%, most appropriate tx re |
|
Definition
decrease FIO2 and monitor patients ventilation
|
|
|
Term
before beginning ventilatory support for a patient with chronic bronchitis, the blood gas results in the ed are paco2 of 78mmhg and ph of 7.31. after 1 hour of mechanical ventilation, the following statement is true |
|
Definition
patient is hyperventilated beyond her normal paco2 level |
|
|
Term
calculate Ve if Vt is 500ml and rr is 12
|
|
Definition
|
|
Term
define a closed loop system |
|
Definition
closed loop system aka intelligent system senses monitors the patient's need for ventilation. |
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|
Term
three synonyms for volume ventilation |
|
Definition
volume targeted, volume limited, volume controlled |
|
|
Term
primary variable used by ventilator to cause inspiration is |
|
Definition
|
|
Term
|
Definition
1. change from exhalation to inspiration
2. inspiration
3. change from inspiration to exhalation
4. exhalation
|
|
|
Term
during volume controlled ventiation the patient's lung compliance improves: what happens |
|
Definition
|
|
Term
name five clinical objectives for MV |
|
Definition
reverse acute respiratory failure
reverse respiratory distress, reverse hypoxemia, prevent or reverse atelectasis, maintain FRC, reverse respiratory mucle fatique, permit sedation or paralysis, reduce myocardial o2 consumption, |
|
|
Term
what pulmonary disease causes increased airway resistance and results in increased WOB |
|
Definition
asthma, epiglottis, emphysema, chronic bronchitis, croup, |
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|
Term
SIMV psoitive airway pressure, mandatory berathes during mechanical ventilation can normally be cycled into expiration by which 2 control variables |
|
Definition
|
|
Term
a mode of ventilation that provides a constant postive pressure during inspiration to a spontaneously breathing pat and also helps reduce the wob through ett and circuit is |
|
Definition
|
|
Term
if the pressure waveform on the vent remains the same when the pt's lung mech. change then the ventilator is in |
|
Definition
|
|
Term
if a ventilator not the patient initiates a breath, what is the trigger variable |
|
Definition
|
|
Term
a ventilator that controls flow and delivers a rectangular flow waveform will also exhibt what wave form |
|
Definition
|
|
Term
|
Definition
mv is set at or at rates lower than 6bpm and the patient participates in WOB the help maintain effective alveolar ventilation. weaning mode |
|
|
Term
when is PSV used and name two modes of PSV |
|
Definition
PSV is often used when attempts are made to wean a partient off the vent, two modes of PSV are SIMV & PSV
|
|
|
Term
name the three types of breaths |
|
Definition
mandatory breath
spontaneous breath
assisted breath |
|
|
Term
there are three breath delivery techniques, they are |
|
Definition
continuous mandatory ventilation
SIMV and spontaneous mode |
|
|
Term
what are the three triggers of assist control (A/C) ventilation |
|
Definition
|
|
Term
two common problems of cmv ventilation |
|
Definition
patient triggered modes are releated to ventilators sensitivity settings and response times can cause auto triggering and breath stacking, or inappropriately set so that patient's wob is to great |
|
|
Term
what is volume targeted cmv
|
|
Definition
vc-cmv
when volume is set as the control variable, the pressure (PIP) will change with changes in the lungs compliance |
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|