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Respiratory Semester II > Unit 3 Test - Amy's Class > Flashcards

Unit 3 Test - Amy's Class Flashcards

(57 cards)

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1
Q

One gram of hemoglobin has the capability to take up or carry how much oxygen?

A

1.34 ml

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2
Q

Define hypoxia

A

Low levels of oxygen in the tissue

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3
Q

Define polycythemia

A

Excessive red blood cells (COPD)

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4
Q

Define reduced hemoglobin

A

Oxygen free hemoglobin

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5
Q

If the oxygen dissociation curve shifts to the left what happens to the amount of oxygen at the tissue level?

A

Less oxygen at the tissue level

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6
Q

Left/Right: hypercarbia

A

Right

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7
Q

Left/Right: increased 2,3 DPG

A

Right

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8
Q

Left/Right: decreased pH

A

Right

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9
Q

Left/Right: decreased H+ concentration

A

Left

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10
Q

Left/Right: hypothermia

A

Left

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11
Q

Left/Right: carbon monoxide

A

Right

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12
Q

Left/Right: anemia

A

Right

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13
Q

Left/Right: methemoglobinemia

A

Left

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14
Q

Left/Right: decreased affinity

A

Right

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15
Q

The therapeutic level of O2 is _____

A

< 50%

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16
Q

“Heme” refers to

A

Iron

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17
Q

“Globin” refers to

A

Protein

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18
Q

Fetal hemoglobin will more readily hold onto/give up oxygen

A

Hold onto

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19
Q

The most accurate sample of mixed venous blood is obtained from the

A

Pulmonary artery

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20
Q

What is the best reflection of the adequacy of alveolar ventilation?

A

PaCO2

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21
Q

0.003 represents the

A

Dissolving factor for plasma

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22
Q

Define oxygen content

A

Sum of oxygen attached hemoglobin plus amount dissolved in plasma

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23
Q

As CaO2-CvO2 increases, CO will

24
Q

What is the best treatment for refractory hypoxemia?

Study These Flashcards
A

Positive pressure (PEEP)

25
Define C.O.
Volume of blood ejected from the right or left ventricle
26
The normal value of 0.8 applies to:
R, RQ, V/Q
27
T/F: V/Q stands for ventilation divided by perfusion
True
28
What is 2,3 DPG?
Enzyme in RBC, competes with O2 for the iron binding site
29
T/F: A low hemoglobin affinity will hold oxygen in the blood stream
False
30
T/F: The Bohr effect states that the addition of carbon dioxide to the body stream enhances the release of oxygen from the hemoglobin molecule
True
31
What is normal P50?
27 torr
32
T/F: Increasing the PaO2 is the most important factor in treating carbon monoxide
True
33
Define RQ:
Exchange of o2 and carbon dioxide during internal respiration
34
Define internal respiration:
Gas exchange between blood and tissue
35
The two primary forms of hemoglobin:
Oxyhemoglobin and reduced hemoglobin
36
The affinity of hemoglobin for carbon monoxide is how many times greater that its affinity for oxygen?
210
37
Symptoms of carbon monoxide poisoning
Flu like symptoms, headache, nausea, convulsions, deep coma, other
38
Cigarette smokers often have carbon monoxide level of approximately
5-10%
39
What is the instrument used to determine CO poisoning?
Co-oximeter
40
What type of therapy would you recommend for a patient with a low level of CO poisoning?
100% O2
41
What type of therapy would you recommend for a patient with a COHb of 55%
Hyperbaric chamber
42
What is the half life of CO on RA
5-6 hours
43
What is the half life of CO on 100% O2
80 minutes
44
What is the half life of CO at 3ATA
23 minutes
45
Normal SaO2
92-100%
46
Normal Pao2
80-100 torr
47
Normal PAO2
100 torr
48
Normal Hb
12-16 g/deciliter
49
Normal SvO2
70-75%
50
Normal PvO2
40 torr
51
Normal A-aDO2
< 20 torr
52
Normal P50
27 torr
53
Normal CaO2
20 vol%
54
Normal CvO2
15 vol%
55
Normal CO
4-8 lpm
56
Normal pH
7.35-7.45
57
Normal VO2
250 ml/min

Respiratory Semester II (11 decks)

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