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MechVent 1 Test

Enter the letter for the matching Answer
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1.
Describe the 2 diff types of res. failure. What disease processes are associated w/ each?
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2.
Describe how a pt is weaned using SIMV.
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3.
Why would PSV be added to this mode?
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4.
Define the term “cycle”
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5.
Describe the possible negative impacts of PEEP therapy.
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6.
A/C mode, 600 Vt w/ a rate of 12, w/o spont.efforts: 7.36/CO2 65/HCO3 38/PaO2 100/ at an FIO2 .45 (COPD pt being considered for weaning)
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7.
List the various factors used to trigger ventilator breaths.
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8.
What techniques are used to monitor the possible cardiac effects from positive pressure ventilation?
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9.
Identify the normal Vt ranges.
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10.
Maximum setting that should be selected for the high respiratory rate alarm?
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11.
A/C mode, 600 Vt w/ a rate of 12, w/o spont.efforts: 7.25/CO2 55/HCO3 23/PaO2 80/ at an FIO2 .35
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12.
Low minute ventilation alarm setting?
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13.
Describe the negative physiological effects of positive pressure vent.
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14.
A/C mode, 600 Vt w/ a rate of 12, w/o spont.efforts: 7.38/CO2 43/HCO3 22/PaO2 120/ at an FIO2 .65
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15.
What ventilator changes could be made to correct a respiratory acidosis?
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16.
Describe static compliance?
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17.
Calculate the corrected Vt for the following pt: PIP = 50, Cmech = 2.5 ml/cmH20, delivered Vt = 900 ml.
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18.
What 2 changes could be made to correct a high PaO2?
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19.
What is the most common setting for initiation of apnea ventilation?
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20.
Describe dynamic compliance?
A.
barotraumas*, ↓ venous return, Qt*, renal blood flow, urine output, and gastrointestinal function (due to ↓ blood flow), also an ↑ in ICP, PVR, deadspace and mean airway pressure.
B.
Gradual ↑ on pt’s ventilatory load by decresing the rate, Machine breaths are decreased by 2 breaths at a time (incremental changes), Patient takes over with spontaneous efforts to maintain the VE needed to stabilize PaCO2
C.
Respiratory Acidosis w/ normal oxygenation; Increase Vt or RR.
D.
PSV can be added to help “fine tune” incremental changes and maintain adequate spontaneous Vt (>300 ml)
E.
20 seconds
F.
Increase Vt or RR (Adjust Vt first, but if Vt is ideal then go w/ RR)
G.
Pressure and Flow (pt.), Timed (vent.), Manuel (operator)
H.
the amount of force needed to overcome airway resistance and inflate the lung w/ a volume. (= Vt/PIP-PEEP)
I.
Compensated Respiratory Acidosis w/ normal oxygenation; don't touch the PaCO2. However, the O2 is at toxic level for a COPDer. Drop FIO2 until he starts to breath on his own.
J.
30
K.
Type I: Hypoxic Type II: Hypercapnic
L.
end of inhalation (i.e. machine stops at end of inhalation)
M.
↓ FIO2 and/or I-Time
N.
A-line, Continuous BP monitor, Swan-Ganz
O.
6-10 ml/kg
P.
4
Q.
barotraumas, ↓ venous return, Qt and renal blood flow, ↑ WOB, PVR, ICP, deadspace, mean airway pressure.
R.
inspiratory hold of air w/ a Pplat giving the C of the lungs. (= Vt/Pplat-PEEP)
S.
1. Ct=Vol/P 2. V-lost= Ct x pt’s Pip 3. Corrected Vt= Vt - V-lost (775)
T.
Normal ABG; except the PaO2, so lower the FIO2. It's over the toxic level anyway.
Type the Answer that corresponds to the displayed Question.
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21.
What blood gas value is the primary indicator of adequate ventilation?
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22.
Heated Wick % humidity?
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23.
Describe possible advantages of pressure control ventilation over volume control ventilation.
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24.
HME % humidity?

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