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

Unit 3 Test - Amy's Class Flashcards

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

A

Decrease

24
Q

What is the best treatment for refractory hypoxemia?

A

Positive pressure (PEEP)

25
Q

Define C.O.

A

Volume of blood ejected from the right or left ventricle

26
Q

The normal value of 0.8 applies to:

A

R, RQ, V/Q

27
Q

T/F: V/Q stands for ventilation divided by perfusion

A

True

28
Q

What is 2,3 DPG?

A

Enzyme in RBC, competes with O2 for the iron binding site

29
Q

T/F: A low hemoglobin affinity will hold oxygen in the blood stream

A

False

30
Q

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

A

True

31
Q

What is normal P50?

A

27 torr

32
Q

T/F: Increasing the PaO2 is the most important factor in treating carbon monoxide

A

True

33
Q

Define RQ:

A

Exchange of o2 and carbon dioxide during internal respiration

34
Q

Define internal respiration:

A

Gas exchange between blood and tissue

35
Q

The two primary forms of hemoglobin:

A

Oxyhemoglobin and reduced hemoglobin

36
Q

The affinity of hemoglobin for carbon monoxide is how many times greater that its affinity for oxygen?

A

210

37
Q

Symptoms of carbon monoxide poisoning

A

Flu like symptoms, headache, nausea, convulsions, deep coma, other

38
Q

Cigarette smokers often have carbon monoxide level of approximately

A

5-10%

39
Q

What is the instrument used to determine CO poisoning?

A

Co-oximeter

40
Q

What type of therapy would you recommend for a patient with a low level of CO poisoning?

A

100% O2

41
Q

What type of therapy would you recommend for a patient with a COHb of 55%

A

Hyperbaric chamber

42
Q

What is the half life of CO on RA

A

5-6 hours

43
Q

What is the half life of CO on 100% O2

A

80 minutes

44
Q

What is the half life of CO at 3ATA

A

23 minutes

45
Q

Normal SaO2

A

92-100%

46
Q

Normal Pao2

A

80-100 torr

47
Q

Normal PAO2

A

100 torr

48
Q

Normal Hb

A

12-16 g/deciliter

49
Q

Normal SvO2

A

70-75%

50
Q

Normal PvO2

A

40 torr

51
Q

Normal A-aDO2

A

< 20 torr

52
Q

Normal P50

A

27 torr

53
Q

Normal CaO2

A

20 vol%

54
Q

Normal CvO2

A

15 vol%

55
Q

Normal CO

A

4-8 lpm

56
Q

Normal pH

A

7.35-7.45

57
Q

Normal VO2

A

250 ml/min

Respiratory Semester II (11 decks)

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