Deck 5: Oxygenation Assessments

Question 1

If an individual has an arterial oxygen partial pressure of 45 mm Hg, approximately how many ml of oxygen is dissolved in every 100 ml of blood?

A)0.031 ml O₂
B)0.135 ml O₂
C)0.195 ml O₂
D)0.254 ml O₂
E)0.310 ml O₂

Answer 1

0.135 ml O₂

Question 2

An increased oxygen consumption causes the

A) III only
B) III and IV only
C) II and IV only
D) II, III, and IV only
E) I, II, and III only

Answer 2

III only

Question 3

MATCHING
Using the items listed below, identify what happens to the Oxygen Transport Study values when the PaO₂ increases. Items may be used once, more than once, or not at all.
DO₂

A)Increase
B)Decrease
C)Remain the same

Answer 3

Increase

Question 4

When the O₂ER decreases, the SVO₂ increases.

Question 5

If a patient has a hemoglobin level of 6 g%, which is 85% saturated with oxygen, how much oxygen is being transported to the peripheral cells on the hemoglobin in each 100 ml of blood?

A) 4.6 vol% O₂
B) 6.8 vol% O₂
C) 9.5 vol% O₂
D) 10.7 vol% O₂
E) 11.4 vol% O₂

Question 6

Cyanide poisoning causes which type of tissue hypoxia?

A) Histotoxic hypoxia
B) Anemic hypoxia
C) Hypoxic hypoxia
D) Circulatory hypoxia

Question 7

An increased hemoglobin (Hb) level causes the:
I. SvO2 to decrease.
II. O2ER to increase.
III. DO2 to increase.
IV. O2 to decrease.

A) I only
B) III only
C) I and IV only
D) II, III, and IV only
E) I, II, and IV only

Question 8

If a patient has 3 g% Hb, an SaO₂ of 45%, and a PaO₂ of 525 mm Hg, approximately how much oxygen is being transported to the peripheral tissues in each 100 ml of blood?

A) 1.66 vol% O₂
B) 2.31 vol% O₂
C) 3.37 vol% O₂
D) 4.78 vol% O₂
E) 5.43 vol% O₂

Question 9

MATCHING
Using the items listed below, identify what happens to the Oxygen Transport Study values when the PaO₂ increases. Items may be used once, more than once, or not at all.
C(a-v)

A)Increase
B)Decrease
C)Remain the same

Question 10

The O₂ ER decreases in response to a decreased PaO₂.

Question 11

MATCHING
Using the items listed below, identify what happens to the Oxygen Transport Study values when the PaO₂ increases. Items may be used once, more than once, or not at all.
O₂ER

A)Increase
B)Decrease
C)Remain the same

Question 12

MATCHING
Using the items listed below, identify what happens to the Oxygen Transport Study values when the PaO₂ increases. Items may be used once, more than once, or not at all.
SvO₂

A)Increase
B)Decrease
C)Remain the same

Question 13

An increased cardiac output causes the:

A) I only
B) IV only
C) III and IV only
D) I and III only
E) I and II only

Question 14

The SVO₂ increases in response to an increased cardiac output.

Question 15

If a patient has 7 g% Hb, an SaO₂ of 65 percent, and a PaO₂ of 175 mm Hg, approximately how much oxygen is being transported to the peripheral tissues in each 100 ml of blood?

A) 6.6 vol% O₂
B) 9.4 vol% O₂
C) 10.5 vol% O₂
D) 11.8 vol% O₂
E) 12.7 vol% O₂

Question 16

Peripheral shunting results in an increased SVO₂ level.

Question 17

If a patient has 11 g% Hb, and an SaO₂ of 55%, approximately what is the vol% of O₂ being transported to the peripheral cells on the hemoglobin?

A) 6.5 vol% O₂
B) 7.6 vol% O₂
C) 8.1 vol% O₂
D) 9.7 vol% O₂
E) 10.3 vol% O₂

Question 18

A 47-year-old woman has a temperature of 39° Celsius. She has cardiac output of 6.5 L/min, a CaO₂ of 17 vol%, and a CVO₂ of 6 vol%. What is her O ?

A) 260 mL O₂/min
B) 436 mL O₂/min
C) 515 mL O₂/min
D) 680 mL O₂/min
E) 715 mL O₂/min

Question 19

MATCHING
Using the items listed below, identify what happens to the Oxygen Transport Study values when the PaO₂ increases. Items may be used once, more than once, or not at all.
O₂

A)Increase
B)Decrease
C)Remain the same

Question 20

A 78-year-old woman has a cardiac output of 8 L/min, and a CaO₂ of 7.5 vol%. What is her DO₂?

A) 350 mL O₂/min
B) 550 mL O₂/min
C) 600 mL O₂/min
D) 825 mL O₂/min
E) 975 mL O₂/min

Question 21

Using the items listed below, identify what happens to the Oxygen Transport Study values when the PaO₂ decreases. Items may be used once, more than once, or not at all.
DO₂

A)Increase
B)Decrease
C)Remain the same

Question 22

Using the items below, identify what happens to the Oxygen Transport Study values when the Hb decreases. Items may be used once, more than once, or not at all.
SvO₂

A)Increase
B)Decrease
C)Remain the same

Question 23

Using the items below, identify what happens to the Oxygen Transport Study values when the Cardiac Output increases. Items may be used once, more than once, or not at all.
DO₂

A)Increase
B)Decrease
C)Remain the same

Question 24

Using the items listed below, identify what happens to the Oxygen Transport Study values when the PaO₂ decreases. Items may be used once, more than once, or not at all.
SvO₂

A)Increase
B)Decrease
C)Remain the same

Question 25

Using the items below, identify what happens to the Oxygen Transport Study values when the Cardiac Output increases. Items may be used once, more than once, or not at all.
O₂ER

A)Increase
B)Decrease
C)Remain the same

Question 26

Using the items below, identify what happens to the Oxygen Transport Study values when the O₂ Consumption increases (metabolism increases). Items may be used once, more than once, or not at all.
C(a-v)

A)Increase
B)Decrease
C)Remain the same

Question 27

Using the items below, identify what happens to the Oxygen Transport Study values when the Hb decreases. Items may be used once, more than once, or not at all.
C(a-v)

A)Increase
B)Decrease
C)Remain the same

Question 28

Using the items below, identify what happens to the Oxygen Transport Study values when the O₂ Consumption increases (metabolism increases). Items may be used once, more than once, or not at all.
SvO₂

A)Increase
B)Decrease
C)Remain the same

Question 29

Using the items listed below, identify what happens to the Oxygen Transport Study values when the PaO₂ decreases. Items may be used once, more than once, or not at all.
C(a-v)

A)Increase
B)Decrease
C)Remain the same

Question 30

Using the items below, identify what happens to the Oxygen Transport Study values when the O₂ Consumption increases (metabolism increases). Items may be used once, more than once, or not at all.
O₂

A)Increase
B)Decrease
C)Remain the same

Question 31

Using the items below, identify what happens to the Oxygen Transport Study values when the O₂ Consumption increases (metabolism increases). Items may be used once, more than once, or not at all.
O₂ER

A)Increase
B)Decrease
C)Remain the same

Question 32

Using the items listed below, identify what happens to the Oxygen Transport Study values when the PaO₂ decreases. Items may be used once, more than once, or not at all.
O₂

A)Increase
B)Decrease
C)Remain the same

Question 33

Using the items below, identify what happens to the Oxygen Transport Study values when the Hb decreases. Items may be used once, more than once, or not at all.
DO₂

A)Increase
B)Decrease
C)Remain the same

Question 34

Using the items below, identify what happens to the Oxygen Transport Study values when the Cardiac Output increases. Items may be used once, more than once, or not at all.
O₂

A)Increase
B)Decrease
C)Remain the same

Question 35

Using the items listed below, identify what happens to the Oxygen Transport Study values when the PaO₂ decreases. Items may be used once, more than once, or not at all.
O₂ER

A)Increase
B)Decrease
C)Remain the same

Question 36

Using the items below, identify what happens to the Oxygen Transport Study values when the Cardiac Output increases. Items may be used once, more than once, or not at all.
C(a-v)

A)Increase
B)Decrease
C)Remain the same

Question 37

Using the items below, identify what happens to the Oxygen Transport Study values when the Hb decreases. Items may be used once, more than once, or not at all.
O₂ER

A)Increase
B)Decrease
C)Remain the same

Question 38

Using the items below, identify what happens to the Oxygen Transport Study values when the Hb decreases. Items may be used once, more than once, or not at all.
O₂

A)Increase
B)Decrease
C)Remain the same

Question 39

Using the items below, identify what happens to the Oxygen Transport Study values when the Cardiac Output increases. Items may be used once, more than once, or not at all.
SvO₂

A)Increase
B)Decrease
C)Remain the same

Question 40

Using the items below, identify what happens to the Oxygen Transport Study values when the O₂ Consumption increases (metabolism increases). Items may be used once, more than once, or not at all.
DO₂

A)Increase
B)Decrease
C)Remain the same

Question 41

AUTOMOBILE ACCIDENT VICTIM
A 37-year-old woman is on a volume-cycled mechanical ventilator on a day when barometric pressure is 745 mm Hg. The patient is receiving an FIO₂ of .50. The following clinical data are obtained:

Based on the information above, approximately what is the patient's PAO₂?

Question 42

Using the items listed below, identify what happens to the Oxygen Transport Study values when Peripheral Shunting is present. Items may be used once, more than once, or not at all.
SvO₂

A)Increase
B)Decrease
C)Remain the same

Question 43

Using the items listed below, identify what happens to the Oxygen Transport Study values when the O₂ Consumption decreases. Items may be used once, more than once, or not at all.
O₂ER

A)Increase
B)Decrease
C)Remain the same

Question 44

Using the items listed below, identify what happens to the Oxygen Transport Study values when the O₂ Consumption decreases. Items may be used once, more than once, or not at all.
SvO₂

A)Increase
B)Decrease
C)Remain the same

Question 45

Using the items listed below, identify what happens to the Oxygen Transport Study values when the Hb increases. Items may be used once, more than once, or not at all.
O₂ER

A)Increase
B)Decrease
C)Remain the same

Question 46

Using the items listed below, identify what happens to the Oxygen Transport Study values when the Hb increases. Items may be used once, more than once, or not at all.
SvO₂

A)Increase
B)Decrease
C)Remain the same

Question 47

Using the items listed below, identify what happens to the Oxygen Transport Study values when the O₂ Consumption decreases. Items may be used once, more than once, or not at all.
O₂

A)Increase
B)Decrease
C)Remain the same

Question 48

Study #1 (Oxygen Transport Studies)
A 63-year-old woman with chronic obstructive pulmonary disease demonstrates the following clinical data:

Based on the above information, the patient's total oxygen delivery is about:

A) 632 ml O₂/minute.
B) 838 ml O₂/minute.
C) 971 ml O₂/minute.
D) 1070 ml O₂/minute.
E) 1287 ml O₂/minute.

Question 49

Using the items listed below, identify what happens to the Oxygen Transport Study values when Peripheral Shunting is present. Items may be used once, more than once, or not at all.
O₂

A)Increase
B)Decrease
C)Remain the same

Question 50

Study #1 (Oxygen Transport Studies)
A 63-year-old woman with chronic obstructive pulmonary disease demonstrates the following clinical data:

In reference to the clinical data presented in this , what is the patient's arterial-venous oxygen content difference?

A)1.649 vol%
B)2.725 vol%
C)3.612 vol%
D)4.631 vol%
E)5.435 vol%

Question 51

Study #1 (Oxygen Transport Studies)
A 63-year-old woman with chronic obstructive pulmonary disease demonstrates the following clinical data:

In reference to the clinical data presented in this , the patient's oxygen extraction ratio is approximately

A) .15.
B) .20.
C) .29.
D) .36.
E) .49.

Question 52

Using the items listed below, identify what happens to the Oxygen Transport Study values when the O₂ Consumption decreases. Items may be used once, more than once, or not at all.
C(a-v)

A)Increase
B)Decrease
C)Remain the same

Question 53

Using the items listed below, identify what happens to the Oxygen Transport Study values when Peripheral Shunting is present. Items may be used once, more than once, or not at all.
DO₂

A)Increase
B)Decrease
C)Remain the same

Question 54

Using the items listed below, identify what happens to the Oxygen Transport Study values when the Hb increases. Items may be used once, more than once, or not at all.
O₂

A)Increase
B)Decrease
C)Remain the same

Question 55

Using the items listed below, identify what happens to the Oxygen Transport Study values when Peripheral Shunting is present. Items may be used once, more than once, or not at all.
O₂ER

A)Increase
B)Decrease
C)Remain the same

Question 56

Using the items listed below, identify what happens to the Oxygen Transport Study values when the O₂ Consumption decreases. Items may be used once, more than once, or not at all.
DO₂

A)Increase
B)Decrease
C)Remain the same

Question 57

Using the items listed below, identify what happens to the Oxygen Transport Study values when the Hb increases. Items may be used once, more than once, or not at all.
DO₂

A)Increase
B)Decrease
C)Remain the same

Question 58

Study #1 (Oxygen Transport Studies)
A 63-year-old woman with chronic obstructive pulmonary disease demonstrates the following clinical data:

In reference to the clinical data presented in this , the patient's oxygen consumption is approximately

A) 179 ml O₂/minute.
B) 218 ml O₂/minute.
C) 380 ml O₂/minute.
D) 445 ml O₂/minute.
E) 575 ml O₂/minute.

Question 59

Using the items listed below, identify what happens to the Oxygen Transport Study values when Peripheral Shunting is present. Items may be used once, more than once, or not at all.
C(a-v)

A)Increase
B)Decrease
C)Remain the same

Question 60

Using the items listed below, identify what happens to the Oxygen Transport Study values when the Hb increases. Items may be used once, more than once, or not at all.
C(a-v)

A)Increase
B)Decrease
C)Remain the same

Question 61

AUTOMOBILE ACCIDENT VICTIM
A 37-year-old woman is on a volume-cycled mechanical ventilator on a day when barometric pressure is 745 mm Hg. The patient is receiving an FIO₂ of .50. The following clinical data are obtained:

Based on the information provided above, approximately what is the patient's CVO₂?

Question 62

AUTOMOBILE ACCIDENT VICTIM
A 37-year-old woman is on a volume-cycled mechanical ventilator on a day when barometric pressure is 745 mm Hg. The patient is receiving an FIO₂ of .50. The following clinical data are obtained:

Based on the information provided above, approximately what is the patient's CaO₂?

Question 63

AUTOMOBILE ACCIDENT VICTIM
A 37-year-old woman is on a volume-cycled mechanical ventilator on a day when barometric pressure is 745 mm Hg. The patient is receiving an FIO₂ of .50. The following clinical data are obtained:

Based on the information provided above, approximately what is the patient's intrapulmonary shunting? (Note: Final answer has been rounded up.)

Question 64

AUTOMOBILE ACCIDENT VICTIM
A 37-year-old woman is on a volume-cycled mechanical ventilator on a day when barometric pressure is 745 mm Hg. The patient is receiving an FIO₂ of .50. The following clinical data are obtained:

Based on the information provided above, approximately what is the patient's CcO₂?