Final Exam Flashcards

(84 cards)

1
Q

in the context of pulmonary function testing, what does a high RV/TLC ratio indicate?

A

air trapping

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2
Q

during a PFT, what is the term for the amount of air you can inhale after a normal inspiration?

A

IRV-inspiratory reserve volume

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3
Q

during a PFT, what is the term for the amount of air you can forcefully exhale after a maximum inspiration?

A

FVC-forced vital capacity

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4
Q

during a PFT, what is the term for
air left in the lungs after a maximum exhalation?

A

RV-residual volume

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5
Q

during a PFT, what is the term for the ratio of volume exhaled in 1 second to total volume exhaled?

A

FEV1/FVC

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6
Q

during a PFT, what is the term for the amount of air you can exhale after a maximum inspiration?

A

VC- vital capacity

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6
Q

during a PFT, what is the term for the milliliters of gas the lung can transfer to the blood?

A

DLCO- diffusion capacity

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7
Q

during a PFT, what is the term for the volume of air you can forcefully exhale in 1 second?

A

FEV1-forced expiratory volume at 1 sec

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8
Q

during a PFT, what is the term for the largest amount of air the lungs can hold?

A

TLC- total lung capacity

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9
Q

during a PFT, what is the term for the amount of air you can exhale after a normal exhalation?

A

ERV- expiratory reserve volume

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10
Q

during a PFT, what is the term for
greatest amount of air you can breathe in 12-15 seconds?

A

MVV-maximum voluntary ventilation

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11
Q

during a PFT, what is the term for the amount of air you can inhale after a normal exhalation?

A

IC- inspiratory capacity

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12
Q

during a Nitrogen washout test, what gas does a patient breathe in through the PFT machine?

A

100% oxygen

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13
Q

what 4 variables are used for calculating normal values for spirometry?

A

height, age, gender, and ethnicity

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14
Q

during a PFT, what can cause a low TLC?

A

restrictive disease

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15
Q

what pulmonary function test best measures the total lung capacity including trapped air?

A

plethysmography (body box)

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16
Q

what gas is usually used to measure the lung’s ability to transfer gas to the blood during a DLCO?

A

CO-carbon monoxide

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17
Q

What are 2 disease processes that can cause a low DLCO?

A

emphysema and pulmonary fibrosis

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18
Q

what value can be measured during a spirometry test?

A

vital capacity (VC)

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19
Q

A patient presenting with signs of leukocytosis with a WBC of 15,000 probably has _________?

A

a significant infection

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20
Q

to be in control a value must be within how many standard deviations of the average?

A

2

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20
Q

what is the normal value range for K+ (potassium)?

A

3.5-5.1

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21
Q

following endotracheal intubation, a colorimetric CO2 sensor is placed in line. the device changes color from purple to yellow. What does this indicate?

A

there is CO2 present in the exhaled gas

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22
Q

what does capnography measure?

A

PetCO2

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23
where is the primary location on the body to get an ABG?
radial artery
24
Which electrode is used to measure PO2?
Clark
25
where are volatile acids eliminated through?
lungs
26
what does it mean when you see "shark fins" on a ETCO2 waveform?
obstruction like in asthma or COPD
27
what is the term for how close a measured value is to the true value?
accuracy
28
you mislabel an ABG specimen with the wrong patient information. this would be considered a/an _______?
preanalytical
29
when performing an Allen's test, which artery do you let go of to watch for return of circulation?
ulnar artery
30
what is the normal range for glucose?
70-139
31
what are 3 factors that can affect the accuracy of a pulse oximeter reading?
finger nail polish color, ambient lighting, and fake nails.
32
a patient with an elevated BUN would have what condition?
chronic kidney failure
33
not enough oxygen at the tissue level due to a low cardiac output describes _________?
circulatory hypoxia
34
what arterial blood gas reading is used to indicate the respiratory component of the acid–base state?
PCO2
35
what patient population are you most likely to see and/or use transcutaneous monitoring in?
infant
36
when analyzing a capillary sample, what does not closely correlate to the arterial sample?
PO2
37
what 3 parameters are directly measured with electrodes in an ABG analyzer?
pH, PCO2, PO2
38
not enough oxygen at the tissue level due to low PaO2 describes ______?
hypoxic hypoxia
39
depression of the central nervous system can be caused by ________?
acidosis
40
if a patient is having a problem related to acid–base balance, which two organs are most likely to be affected?
lungs and kidneys
41
you have been asked to draw an ABG on a patient. what blood values will you look at prior to drawing the ABG that will tell you how well your patients blood will clot?
PT, PTT
42
during CPR, the PETCO2 is slowly decreasing from 25 mm Hg to 20 mm Hg to 15 mm Hg. why is this happening and what is the appropriate response?
the person giving CPR is not doing as well of a job as they were before, it is time to switch to a new person to give proper CPR.
43
a 20-year-old female presents complaining of extreme fatigue. Your tests show that she has a hematocrit of 25%. what does she most likely have?
anemia
44
what is the maximum number of spirometry tests that should be done in one sitting?
10
45
during a nitrogen washout test, the test is stopped when nitrogen reaches _____?
1.5%
46
a high FENO values may support which diagnosis?
asthma
47
what is the most commonly performed PFT?
spirometry
48
what is required to determine the predicted values when performing a PFT?
Patient height, age, gender, and ethnicity
49
what is produced by anaerobic metabolism?
lactic acid
50
when PFT machine calibration is done what size syringe is used for this process?
3L syringe
51
in a patient with air trapping which lung volume test will more accurately measure residual volume?
body plethysmography
52
what percent change in FEV1 is needed to determine if there is a significant response to bronchodilator therapy?
12%
53
a patient with no cardiac history is having a hallway oximetry exercise test to determine the need for oxygen at home. what value does the SpO2 need to drop to, to support the need for oxygen?
88%
54
during a nitrogen washout test a patient breathes in ___?
100% oxygen
55
during a 6 minute walk test, when is the patient allowed to slow down or rest?
as needed
56
how long must it be before a patient has taken a short acting bronchodilator before they can do spirometry testing?
4 hours
57
what do spirometry tests measure?
time, volume, flow
58
which gas law is body plethysmography based on?
Boyle's Law
59
what are 3 reasons to stop a 6 minute walk test?
intolerable chest pain, shortness of breath, and excessive sweating
59
at rest and low to moderate levels of exercise, cellular metabolism is largely ______?
aerobic
60
during a methacholine challenge test how far does the FEV1 need to drop for it to be considered a positive test?
20%
61
a patient is scheduled for an exercise bronchoprovocation test. they are unable to complete the required exercise for testing. Which test is an acceptable alternative to determine exercise induced bronchospasm (EIB)?
mannitol
62
During a DLCO test, the patient inhales a gas mixture that has _____?
carbon monoxide
63
during a helium dilution test how much helium does the patient breathe?
10%
64
what position is the most common position while performing a CXR?
posteroanterior (PA)
65
during a CXR, what position has the patient laying on one side, most often to look for pleural effusion?
lateral decubitus
65
what is the position called that shows the view of the side on a CXR?
lateral
66
your 2 year old patient has swallowed a dime. this will show up as ____________ on the CXR?
radiopaque
66
what position is most often as a portable CXR, or in the ICU?
anteroposterior (AP)
67
during a CXR, what is the position called when the patient is leaning back?
lordotic
68
during a CXR, what is the position that is at an angle from the side?
oblique
69
during a CXR, what position is used to look for a small pneumothorax?
expiratory
70
what class is the most severe type of decubitus ulcer?
4
71
what is the normal value of albumin?
3.5-5g/dL
72
what is the term for oral or tube feeding?
enteral
73
what is the term for nutrition through an IV?
parenteral
74
what is the term for a form of enteral feeding: percutaneous endoscopic gastrostomy?
PEG tube
74
what is the term for a form of enteral feeding- nasogastric tube?
NG tube
74
what is the term for severely underweight; characterized by weakness and emaciation?
cachetic
75
what is the term for a way to measure the amount of calories a patient is using?
indirect calorimetry
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