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NBRC TMC Practice Questions with
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Which |of |the |following |is |needed |to |calculate |alveolar |oxygen |tension? A. |VD/VT, |PAO B. |BP |and |FiO C. |PetCO2 |and |PaO D. |QS/QT, |deadspace |- |VERIFIED |ANSWERS |✔B. Barometric |pressure, |FiO2, |and |PaO2 |are |all |included |in |the |formula |(BP |stands |for |barometric | pressure) L/min/m2 |is |the |unit |of |measure |for: A. |Systemic |vascular |resistance B. |Cardiac |output | C. |Cardiac |index D. |Stroke |volume |- |VERIFIED |ANSWERS |✔C. A |spontaneously |breathing |patient |has |the |following |arterial |blood |gas |results: pH |7.38 |PaCO2 | 42 |mmHgPaO2 | 76 |mmHgHCO3- | 24 |mEq/LBE | 0 |mEq/L Which |of |the |following |supplemental |oxygen |levels |is |most |appropriate? |A. | 2 |L/min |nasal |cannula |B. | 5 |L/min |nasal |cannula |C. |non-rebreathing |mask |D. |Venturi |mask |at |30% |- |VERIFIED |ANSWERS |**✔B. | A |patient |who |is |showing |signs |of |hypoxemia |should |receive |supplemental |oxygen. |If |the |patient |is | not |a |COPD |patient |and |the |situation |is |not |an |emergency, |then |the |proper |supplemental |oxygen |is | an |adult |therapeutic |dose, |which |is |40% |to |55%. |Of |the |options |available |only | 5 |L/min |nasal |cannula | will |approach |this. |Other |options |are |either |insufficient |or |too |much. Left |heart |failure |would |be |manifested |in |which |of |the |following |values?
|A. |CVP |and |mPAP |B. |mPAP |and |wedge |pressure |C. |MAP |and |SVR |D. |cardiac |output |and |wedge |pressure |- |VERIFIED |ANSWERS |✔D. | The |function |of |the |left |heart, |specifically |the |left |ventricle, |is |best |assessed |hemodynamically |by | looking |at |those |values |that |precede |and |come |after |the |left |heart. |In |this |case |pulmonary |capillary | wedge |pressure |and |cardiac |output |(or |cardiac |index) |are |the |values |found |before |and |after |the |left | heart. Which |of |the |following |findings |is |most |closely |associated |with |increased |airway |resistance? |A. |reduced |SpO |B. |accessory |muscle |use |C. |altered |P |D. |increased |PetCO2 |- |VERIFIED |ANSWERS |✔B. Of |the |options |given, |use |of |accessory |muscles |is |most |closely |associated |with |an |increase |in |airway | resistance. |This |is |especially |true |with |patients |who |have |asthma |or |other |types |of |upper |airway | inflammation |or |bronchoconstriction. For |a |patient |receiving |volume-controlled |mechanical |ventilation, |the |lower |inflection |point |on |a | pressure-volume |loop |can |best |be |described |as: |A. |amount |of |pressure |required |to |keep |the |alveoli |and |small |airways |open |B. |optimal |PEEP |C. |minimal |PEEP |D. |upper |limit |of |residual |volume |- |VERIFIED |ANSWERS |**✔A. | The |lowest |inflection |point |on |a |pressure-volume |ventilator |graphic |is |an |indication |of |the |minimum | pressure |needed |to |keep |alveoli |open. The |results |of |a |V/Q |scan |shows |poor |perfusion |with |adequate |ventilation. |A |chest |radiograph |shows | a |wedge-shaped |infiltrate |over |the |right |lung |field. |The |patient |most |likely |has |A. |fluid |overload |B. |ARDS |C. |a |pulmonary |embolism
football". |The |solution |is |to |increase |PEEP |to |a |level |that |the |pressure |begins |to |rise |immediately |as | volume |is |introduced. Which |of |the |following |would |be |the |most |effective, |appropriate |method |for |resolving |atelectasis |in |a |spontaneously |breathing, |post |operative |patient |who |is |under |the |influence |of |sedation |and |will |not | respond |to |verbal |stimuli? |A. |IPPB |B. |sustained |maximal |inhalation |(incentive |spirometer) |C. |deep |breathing |coaching |D. |intubation |and |mechanical |ventilation |- |VERIFIED |ANSWERS |✔A. | A |postoperative |patient |under |sedation, |and |possibly |in |pain, |may |be |tempted |to |breathe |less, | causing |respiratory |acidosis |and |atelectasis. |To |correct |this |problem, |IPPB |therapy |is |most | appropriate. |Incentive |spirometry |would |also |help |but |the |patient |is |unable |to |respond |to |verbal | stimuli. |This |alone |is |an |indication |for |IPPB |therapy. After |performing |minimum |occluding |volume |technique |with |a |65-kg |(143-lb) |patient |who |is |orally | intubated |with |a |7.0-mm |ET |tube, |the |respiratory |therapist |should |NEXT |A. |check |ET |tube |cuff |pressure |B. |perform |tracheal |palpation |C. |order |a |chest |radiograph |D. |document |ET |tube |markings |at |the |lips |- |VERIFIED |ANSWERS |✔A. The |ET |tube |cuff |pressure |may |be |adjusted |correctly |by |several |techniques |including |minimum |leak | technique |(also |called |minimum |occluding |volume, |minimal |seal |technique, |and |the |use |of |a |pressure | manometer |called |a |cuffalator. |If |minimum |seal |or |minimal |leak |technique |is |used, |the |respiratory | therapist |is |still |required |to |monitor |the |pressure |after |the |technique |is |performed. |Although |this |is | often |not |done |in |real |life, |it |is |technically |part |of |the |procedure. The |respiratory |therapist |observes |an |ECG |wave |form |on |a |patient |that |is |consistent |with |atrial | tachycardia. |The |patient |is |complaining |of |chest |pain, |dizziness, |and |nausea. |The |respiratory |therapist | should |recommend |A. |unsynchronized |defibrillation |B. |Atropine |sulfate |C. |epinephrine
|D. |cardioversion |- |VERIFIED |ANSWERS |✔D. | Non-deadly |arrhythmias, |such |as |this |one, |may |be |addressed |through |cardioversion. |Cardioversion |is | a |form |of |defibrillation |with |low |wattage |and |with |the |synchronization |set |to |"active". |This |allows |the |shock |to |be |synchronized |to |the |R |wave. A |38-year-old |male |presents |in |the |emergency |department |(ED) |complaining |of |frequent |vomiting. | The |following |laboratory |data |is |available: |Arterial |blood |gases pH |7.55 |PaCO2 | 42 |torrPaO2 | 85 |torrHCO3- | 31 |mEq/LBE |+7 |mEq/LFIO2 |0.21K+ |3.0 |mEq/LCl- | 95 |mEq/LNa+ | 135 |mEq/L Which |of |the |following |should |the |respiratory |therapist |recommend? |A. |administer |NaCL |B. |administer |NaHCO3- |C. |administer |KCL |D. |administer |volume-expanding |fluids |- |VERIFIED |ANSWERS |✔C. This |patient |has |a |CO2 |of | 42 |mmHg, |which |suggests |adequate |ventilation. |However, |the |high |pH |is | associated |with |alkalosis. |Because |the |CO2 |is |normal, |the |cause |of |the |alkalosis |must |be |metabolic |in | nature. |One |treatment |for |metabolic |alkalosis |is |to |administer |potassium |chloride |or |KCl. A |patient |is |receiving |volume-controlled |ventilation |following |bariatric |surgery |for |obesity. |Which |of | the |following |medications |should |the |respiratory |therapist |recommend |to |ensure |the |patient's | comfort |and |assist |in |ventilator |management? |A. |Pronestyl |B. |morphine |sulfate |C. |vecuronium |bromide |(Norcuron) |D. |Mestinon |- |VERIFIED |ANSWERS |**✔B. Morphine |sulfate |is |one |of |the |best |medications |to |administer |to |patients |receiving |mechanical | ventilatory |support |to |help |the |patient |rest |pain-free |and |to |generally |sedate |and |relax |the |patient. A |patient |has |idiopathic |pneumonia |with |consolidation |in |the |right |lower |lobe. |The |physician |suspects |a |bacterial |infection. |Which |of |the |following |will |provide |conclusive |data |to |rule |out |the |physician's | suspicions? |A. |WBC |B. |color |of |sputum
|A. |increase |dosage |to |1.0 |mL |B. |decrease |dosage |to |0.15 |mL |C. |switch |to |Xopenex |0.63 |mg |D. |switch |to |Mucomyst |20% |- |VERIFIED |ANSWERS |✔C. When |a |patient |experiences |an |adverse |reaction, |the |first |step |is |to |stop |the |therapy |and |then | modify |the |therapy |to |accomplish |the |same |objective. |In |this |case, |decreasing |the |dose |of |Xopenex |is |suitable |because |0.63 |mg |is |still |in |the |adult |therapeutic |range. Which |of |the |following |conditions |would |benefit |most |from |a |thoracentesis? |A. |atelectasis |B. |complete |opacification |of |the |right |lung |C. |small |pneumothorax |D. |pericardial |contusion |- |VERIFIED |ANSWERS |✔C. A |thoracentesis |is |a |procedure |that |removes |air |or |fluid |from |the |pleural |space. |This |would |be | appropriate |with |a |small |pneumothorax. |A |large |pneumothorax, |however, |would |require |chest |tubes. ASK***** |A |patient |with |ARDS |and |asthma |could |benefit |from |which |of |the |following |medications? |A. |Spiriva |and |decadron |B. |exogenous |surfactant |C. |Tobramycin |and |albuterol |D. |cromolyn |sodium |- |VERIFIED |ANSWERS |✔B. A |patient |with |adult |respiratory |distress |syndrome |could |benefit |from |surfactant |therapy |to |decrease | the |surface |tension |of |the |alveoli. The |respiratory |therapist |should |look |to |which |of |the |following |clinical |data |to |determine |the | effectiveness |of |incentive |spirometry? |A. |Arterial |blood |gas |analysis |pre |and |post |treatment |B. |Breath |sounds |before |and |after |every |treatment |C. |Inspiratory |capacity |predicted |volume |D. |Maximum |voluntary |ventilation |done |periodically |- |VERIFIED |ANSWERS |✔B.
The |effectiveness |of |incentive |spirometry |can |best |be |determined |by |auscultating |breath |sounds | before |and |after |the |treatment |and |noting |changes |in |air |movement. |While |achieving |inspiratory | capacity |is |the |goal, |the |real |goal |is |to |increase |lung |volume, |improve |alveolar |recruitment, |and | prevent |consolidation |of |sputum |in |the |lungs. increased |labor |of |breathing. |The |mandatory |rate |is |14/min. |Which |of |the |following |would |most |likely |help |the |patient? |A. |Use |of |pressure |support |B. |Switch |to |pressure |control |ventilation |C. |Increase |the |machine |flow |rate |D. |Increase |PEEP |- |VERIFIED |ANSWERS |✔A. | During |ventilator |weaning, |a |patient |must |maintain |a |moderately |low |respiratory |rate, |an |adequate | sized |tidal |volume, |and |low |work |of |breathing. |In |this |case, |the |patient |is |experiencing |increased | labor |of |breathing |and |an |increase |in |respiratory |rate. |This |is |likely |due |to |a |reduced |spontaneous | tidal |volume. |Although |this |data |is |not |shown, |this |condition |can |be |assumed. |The |solution |for |a |low | spontaneous |tidal |volume |and |increased |work |of |breathing |during |weaning |is |to |provide |pressure | support. When |analyzing |the |FIO2 |for |an |infant |in |an |oxygen |hood |receiving |oxygen |therapy |with |a |blender | set |at |50%, |the |respiratory |therapist |notes |an |oxygen |concentration |of |35% |near |the |patient's |mouth. |The |jet |nebulizer |entrainment |setting |is |set |to |50%. |To |correct |the |problem, |the |therapist |should |A. |adjust |blender |setting |to |60% |B. |increase |total |flow |to |the |oxyhood |C. |obtain |a |smaller |oxyhood |D. |change |the |nebulizer |entrainment |port |to |100% |- |VERIFIED |ANSWERS |✔D. When |administering |oxygen |by |oxygen |hood |with |a |blender |and |a |nebulizer, |the |oxygen |control |on | the |nebulizer |should |be |set |to |100%. |This |will |prevent |additional |entrainment |of |room |air |which |will | cause |a |decrease |in |FIO2. Following |the |insertion |of |a |tracheostomy |tube, |the |patient |is |found |to |have |diffuse |crackles |upon | auscultation |secondary |to |subcutaneous |emphysema. |Which |of |the |following |radiographic |findings | would |be |expected |with |this |condition? |A. |Hyperlucency |in |the |soft |tissues |B. |Diffuse |pulmonary |hyperlucency
|B. |proof |that |the |syringe |requires |calibration |C. |lacking |in |precision |D. |operating |correctly |- |VERIFIED |ANSWERS |✔A. These |calibration |results |are |all |very |close |together, |indicating |the |machine |is |very |precise. |However, | the |results |are |too |far |from |the |3.0 |L |of |gas |introduced |by |the |calibration |syringe. |The |maximum | variance |is |2.85 |L |- |3.15 |L. |Therefore, |although |the |machine |is |precise, |it |is |considered |inaccurate |and |should |not |be |used |for |patient |testing |and |reporting. Which |of |the |following |will |be |most |helpful |at |preventing |complications |for |a |48-year-old |male | patient |who |has |just |undergone |bariatric |surgery |for |obesity? |A. |Incentive |spirometry |every |hour |B. |Small |volume |nebulizer |therapy |with |Albuterol |every | 4 |hours |C. |Ambulation |twice |a |day |D. |IPPB |with |3.0 |mL |normal |saline |every | 4 |hours |- |VERIFIED |ANSWERS |✔A. | One |of |the |best |methods |to |prevent |postoperative |complications |is |the |use |of |incentive |spirometry, | also |called |maximal |sustained |inspiration |or |SMI. Which |of |the |following |results |should |the |respiratory |therapist |evaluate |to |determine |the |adequacy | of |oxygen |transport |on |a |patient |who |is |diagnosed |with |carbon |monoxide |poisoning |and |is |being | treated |with |FIO2 |of |1.0? |A. |arterial-venous |oxygen |content |difference |B. |cardiac |output |C. |arterial |oxygen |content |D. |oxygen |consumption |at |the |tissues |- |VERIFIED |ANSWERS |**✔C. Oxygen |transport |refers |to |the |ability |for |blood |to |carry |oxygen |from |the |alveoli |to |the |tissues. |In |a | case |involving |carbon |monoxide |poisoning, |it |is |transport |that |is |most |affected. |This |is |true |because | hemoglobin |becomes |occupied |with |carbon |monoxide |rather |than |oxygen. |Hemoglobin |is | 19 |times | more |attracted |to |carbon |monoxide |compared |to |oxygen. |Of |the |options |listed, |the |best |method |to | monitor |the |adequacy |of |oxygen |transport |would |be |to |evaluate |the |arterial |oxygen |content. |This | value |takes |into |account |the |amount |of |oxygen |tied |to |the |hemoglobin |as |well |as |the |oxygen | dissolved |in |the |plasma |of |the |blood A |patient |complains |of |shortness |of |breath |during |a |nebulizer |treatment |is |hypertonic |saline. |The | respiratory |therapist |should |do |which |of |the |following?
|A. |Discontinue |therapy |and |notify |the |physician |B. |Add |Albuterol |to |the |nebulizer |treatment |C. |Switch |to |normal |saline |D. |Switch |to |hypotonic |saline |- |VERIFIED |ANSWERS |✔A. Adverse |reactions |during |any |therapy |should |be |responded |to |initially |by |discontinuing |therapy |and | notifying |the |physician. In |preparation |for |a |helium |dilution |study, |a |respiratory |therapist |is |calibrating |the |helium |analyzer. | While |exposing |the |analyzer |to |ambient |room |air, |what |will |the |analyzer |read |for |helium | concentration? |A. |21% |B. |0% |C. |2% |D. |79% |- |VERIFIED |ANSWERS |✔B. To |calibrate |a |helium |analyzer, |sometimes |called |a |Wheatstone |Bridge, |the |device |must |be |calibrated | to |room |air |for |the |low |calibration |and |to |a |known |level |of |helium |for |the |high |calibration. |Because | room |air |has |no |significant |level |of |helium, |helium |analyzers |should |read |0% |when |exposed |to | ambient |room |air |conditions. Which |of |the |following |will |result |in |a |decrease |in |mean |airway |pressure |for |a |patient |on |a | mechanical |ventilator |in |the |assist/control |mode? |A. |use |of |expiratory |retard |B. |institution |of |a |1.0 |sec |inspiratory |plateau |C. |decrease |in |inspiratory |time |D. |decreasing |inspiratory |flow |- |VERIFIED |ANSWERS |**✔C. Decreasing |inspiratory |time |will |lower |the |amount |of |time |a |patient |is |exposed |to |positive |pressure | and |will |therefore |result |in |a |decrease |in |mean |airway |pressure. |Use |of |expiratory |retard, |increasing | inspiratory |flow, |and |institution |of |an |inspiratory |plateau |will |all |lead |to |increased |mean |airway | pressure. A |chest |radiograph |of |an |abdominal |post-operative |patient |shows |abnormal |elevation |of |the |left | hemidiaphragm. |Which |of |the |following |conditions |explains |the |observation? |A. |pneumothorax |on |the |left
number. |For |instance, |if | 18 |L |per |minute |was |not |an |available |option, |the |next |best |answer |in |this | question |would |be | 24 |L |per |minute. A |65-kg |(143-lb) |male |patient |is |in |the |intensive |care |unit |after |being |found |unconscious |and | unresponsive |with |a |suspected |drug |overdose. |The |following |ABG |and |clinical |data |are |observed.
- |pH: |7.
- |PaCO2: | 50 |mmHg
- |PaO2: | 82 |mmHg
- |HCO3-: | 24 |mEq/L
- |BE: | 0 |mEq/L
- |RR: | 24 |breaths |per |min
- |VT: | 260 |mL The |respiratory |therapist |should |recommend |which |of |the |following: A. |Intubate, |VC, |A/C |ventilation | B. |Oral |intubation, |CPAP | 5 |cm |H2O, |PS | 6 |cm |H2O C. |Non-invasive |ventilation |with |IPAP | 10 |cm |H2O, |EPAP | 5 |cm |H2O D. |Manual |resuscitation |administer |Narcan |(naloxone) |- |VERIFIED |ANSWERS |✔B. Which |of |the |following |is |an |emergency |and |requires |that |the |patient |receive |100% |oxygen | supplementation? A. |Impending |ventilatory |failure B. |Massive |loss |of |blood | C. |Ventilatory |failure | D. |Vital |capacity |below |1.0 |L |- |VERIFIED |ANSWERS |✔B. Which |of |the |following |is |an |indication |for |the |use |of |FiO2 |1.0 |on |a |patient? | A. |Evidence |of |pulmonary |embolism |
B. |Ventilatory |failure C. |Impending |ventilatory |failure | D. |Myasthenia |gravis |- |VERIFIED |ANSWERS |✔A. | Of |the |options |listed, |only |the |suspicion |and |evidence |of |pulmonary |embolism |is |suggestive |of |and | emergency |and |necessitates |the |use |of |FiO2 |1. For |a |patient |who |is |unconscious, |due |to |ingestional |error |of |barbiturates, |which |of |the |following | assessments |is |the |most |important? A. |Arterial |blood |gas |analysis | B. |The |patient's |ability |to |protect |their |airway | C. |Tension |test D. |A |drug |toxicology |screen |- |VERIFIED |ANSWERS |✔B. Which |of |the |following |types |of |patients |are |most |often |good |candidates |for |alveolar |recruitment | maneuvers?
- |Post-surgical |
- |Acute |lung |injury |
- |Pulmonary |emphysema
- |Acute |respiratory |distress |syndrome |
- |Tuberculosis | A. |1, |2, |3, |and | 4 |only | B. |1, |2, |and | 3 |only | C. |1, |3, |and | 5 |only | D. |3, |4, |and | 5 |only |- |VERIFIED |ANSWERS |**✔A. Which |of |the |following |is |most |attributed |to |effective |alveolar |recruitment? A. |Varying |peak |pressures |applied |to |the |airway |
A. |1, |2, |and | 4 |only | B. | 1 |and | 4 |only | C. | 2 |and | 3 |only D. |1, |2, |3, |and | 4 |- |VERIFIED |ANSWERS |✔A. Which |of |the |following |PEEP |levels, |set |above |the |patient's |plateau |pressure, |is |appropriate |as |an | initial |setting |during |alveolar |recruitment |maneuvers? A. | 10 |cm |H2O B. | 40 |cm |H2O C. | 30 |cm |H2O D. | 20 |cm |H2O |- |VERIFIED |ANSWERS |✔A. Which |of |the |following |ventilator |modes |is |most |suitable |to |help |recruit |alveoli? A. |PRVC B. |PCV C. |APRV D. |Inverse |positive |pressure |ventilation |- |VERIFIED |ANSWERS |✔C. To |qualify |for |ventilator |weaning, |a |patient's |Qs/Qt |should |be |below A. |60% B. |5% C. |10% D. |20% |- |VERIFIED |ANSWERS |✔D. A |patient |receiving |VC |SIMV |ventilation |has |a |spontaneous |tidal |volume |of | 500 |mL |and |a |respiratory | rate |of |20/min |when |removed |momentarily |from |the |ventilator. |What |is |the |RSBI |value?
A. | 10
B. | 25
C. | 40
D. |0.025 |- |VERIFIED |ANSWERS |**✔C.
RSBI |is |calculated |by |RR/VT |(L). | RSBI |= | 20 |/ |0.5 |L RSBI |= | 40 To |be |considered |for |weaning |from |VC |A/C |ventilation, |a |patient's |A-aDO2 |should |be |less |than: A. | 100 |mm |Hg B. | 65 |mm |Hg C. | 300 |mm |Hg D. | 200 |mm |Hg |- |VERIFIED |ANSWERS |**✔C. | An |A-aDO2 |greater |than | 300 |mm |Hg |would |suggest |that |the |patient |requires |PEEP |to |maintain | adequate |PaO2. Which |of |the |following |generally |represents |the |quickest, |most |effective |method |for |ventilator | liberation?
- |APRV
- |Cold |cessation |and |extubation |
- |SBT
- |Gradual |decrease |in |rate |and |pressure |support |- |VERIFIED |ANSWERS |**✔C. A |patient |is |being |weaned |from |VC |SIMV |ventilation. |ABGs |are |normal. |MIP |is |-32 |cm |H2O |and |RSBI | is |96. |A |small |amount |of |beige |secretions |are |being |suctioned |from |the |ETT |every |few |hours. |The | patient |shows |some |disorientation |and |confusion |related |to |time, |person, |and |place. |The |RT |should | recommend:
B. |Semi-Fowler's C. |Supine D. |Trendelenburg |- |down | 15 |inches |- |VERIFIED |ANSWERS |✔D. What |postural |drainage |position |is |most |conducive |to |draining |the |basal, |anterior, |and |lateral | segments? A. |Prone B. |Supine C. |Lateral |side, |quarter |turn D. |Trendelenburg |- |head |down | 30 |degrees |- |VERIFIED |ANSWERS |✔D. A |patient |is |in |the |ICU |for |treatment |of |right-sided |pneumonia |and |cor |pulmonale. |What |patient | positioning |would |optimize |gas |exchange? A. |Supine B. |Semi-Fowler's C. |Lying |on |the |right |side |with |the |left |lung |up | D. |Lying |on |the |left |side |with |the |right |lung |up |- |VERIFIED |ANSWERS |✔C. For |optimal |gas |exchange, |the |unaffected |lung |should |be |kept |up |high Which |of |the |following |would |indicate |that |the |prescribed |airway |clearance |efforts |are |effective? A. |Expectoration |of |secretions |dissipates | B. |Patient |develops |rhonchi |during |clearance |procedure C. |Patient |indicates |they |can |breathe |better | D. |Breath |sounds |become |less |diminished |- |VERIFIED |ANSWERS |✔B Which |of |the |following |conditions |would |contraindicate |chest |percussion |for |the |purpose |of |airway | clearance?
A. |Bacterial |pneumonia B. |ARDS C. |Cystic |fibrosis | D. |Untreated |tuberculosis |- |VERIFIED |ANSWERS |✔D. | May |promote |destruction |and |expectoration |of |lung |tissue |in |patients |with |untreated |tuberculosis Which |of |the |following |would |be |most |helpful |in |determining |where |to |focus |chest |physiotherapy |on | a |patient |who |has |mucoviscidosis |and |requires |assistance |with |airway |clearance? | A. |Auscultation |of |breath |sounds B. |Autogenic |drainage | C. |Bronchogram | D. |Diagnostic |chest |percussions |- |VERIFIED |ANSWERS |✔C. A |respiratory |therapist |has |achieved |the |following |weaning |parameters |on |a |post-operative |patient | who |experienced |a |total |knee |replacement. |The |SpO2 |is |97% |on |35% |oxygen. Spont |VT | 480 |mL |VC | 1600 |mLVE |7.0 |LMIP |-4 |cm |H2O The |next |best |action |would |be |to |A. |return |to |full |mechanical |ventilation |B. |reduce |FIO2 |to |0. |C. |check |the |pressure |manometer |for |leaks |D. |evaluate |the |MEF |- |VERIFIED |ANSWERS |**✔C. Most |of |the |weaning |parameters |listed |are |very |good |and |suggest |that |the |patient |is |strong |enough | for |weaning. |The |respiratory |therapist |should |not |believe |the |NIF |result |of |-4 |cm |H2O |because |it |is | not |consistent |with |the |remainder |of |the |results. |A |leak |is |likely |present |in |the |manometer |set |up. A |5-year |old |patient |with |acute |epiglottitis |has |just |received |a |tracheotomy |and |is |returned |to |the | emergency |department |for |monitoring. |The |patient |is |now |breathing |through |a |tracheostomy |tube. | Which |of |the |following |is |most |important |at |this |time? |A. |keep |the |tracheostomy |tube |cuff |inflated
