A patient has a whole-body oxygen consumption of 320 ml/min and a measured CaO2 - C $\over{V}$ O2 of 8 ml/dl. What is the cardiac output?

A) 3.2 L/min B) 4.0 L/min C) 5.0 L/min D) 7.0 L/min A) 3.2 L/min B) 4.0 L/min C) 5.0 L/min D) 7.0 L/min B

Calculate the approximate PAO2 given the following conditions (assume R = 0.8): FIO2 = .40, PB = 770 mm Hg, PACO2 = 31 mm Hg

A) 100 mm Hg B) 135 mm Hg C) 250 mm Hg D) 723 mm Hg A) 100 mm Hg B) 135 mm Hg C) 250 mm Hg D) 723 mm Hg

The lowest PO2 would normally be found in what location?

A) arterial blood B) atmospheric air C) cells D) venous blood A) arterial blood B) atmospheric air C) cells D) venous blood

Which of the following applies to the following reaction: Prot-NH2 + CO2 $\leftrightarrow$ Prot-NHCOO- + H+?

A) About 20% of the total blood carbon dioxide is carried in this form. B) It is second in importance to only the bicarbonate buffer system. C) It represents the formation of blood carbamino compounds. D) The resulting H+ ions are buffered by reduced HCO3-. A) About 20% of the total blood carbon dioxide is carried in this form. B) It is second in importance to only the bicarbonate buffer system. C) It represents the formation of blood carbamino compounds. D) The resulting H+ ions are buffered by reduced HCO3-.

A normal person breathing 100% oxygen at sea level would have PAO2 of about what level?

A) 149 mm Hg B) 670 mm Hg C) 713 mm Hg D) 760 mm Hg A) 149 mm Hg B) 670 mm Hg C) 713 mm Hg D) 760 mm Hg

Given the following blood parameters, compute the total oxygen content (dissolved + HbO2) of the blood in ml/dl: Hb = 16; PO2 = 625 Hg; SO2 = 100%.

A) 17.8 ml/dl B) 19.4 ml/dl C) 21.4 ml/dl D) 23.3 ml/dl A) 17.8 ml/dl B) 19.4 ml/dl C) 21.4 ml/dl D) 23.3 ml/dl

The highest PCO2 levels are found in what location?

A) arterial blood B) atmospheric air C) cells D) venous blood A) arterial blood B) atmospheric air C) cells D) venous blood

Exam 11: Gas Exchange and Transport

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Which of the following would you expect to occur if ventilation to an area of the lung remained constant but perfusion to this same area decreased? I .The PACO₂ should fall. II.The PAO₂ should fall. III.The $\dot { V }$ / $\dot { Q }$ ratio should rise.

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Question 1

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The conversion of HbO₂ to deoxygenated Hb does which of the following? I.decreases blood carbon dioxide content II.enhances carbon dioxide loading on Hb III.helps buffer H⁺ ions

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Question 2

Correct Answer:

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A patient has a whole-body oxygen consumption of 320 ml/min and a measured CaO₂ - C $\over{V}$ O₂ of 8 ml/dl. What is the cardiac output?

Free

(Multiple Choice)

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Question 3

Correct Answer:

Verified

Calculate the approximate PAO₂ given the following conditions (assume R = 0.8): FIO₂ = .40, P_B = 770 mm Hg, PACO₂ = 31 mm Hg

(Multiple Choice)

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Question 4

Which of the following would you expect to occur if perfusion to an area of the lung remained constant, but V_A to this same area decreased?

(Multiple Choice)

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Question 5

An area of the lung has no blood flow but is normally ventilated. Which of the following statements are true about this area? I .The alveolar gas is like air (PO₂ = 150; PCO₂ = 0). II.The area represents alveolar dead space. III.The $\dot { V }$ / $\dot { Q }$ is elevated.

(Multiple Choice)

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Question 6

The lowest PO₂ would normally be found in what location?

(Multiple Choice)

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Question 7

When Hb saturation with oxygen is high, less carbon dioxide is carried in the blood. What is this relationship called?

(Multiple Choice)

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Question 8

Which of the following would you expect to find with "oxygen debt"? I.accentuated in diseases such as sepsis II.oxygen demand exceeds oxygen delivery III.oxygen excess usage results in debt

(Multiple Choice)

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Question 9

Breathing room air, a normal PAO₂ - PaO₂ of 5 to 10 mm Hg exists due to which of the following? I.anatomical shunts in the pulmonary and cardiac circulations II.normal limitations to oxygen diffusion in the lung III.regional differences in pulmonary ventilation and blood flow

(Multiple Choice)

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Question 10

Which of the following applies to the following reaction: Prot-NH₂ + CO₂ $\leftrightarrow$ Prot-NHCOO^- + H⁺?

(Multiple Choice)

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Question 11

A normal person breathing 100% oxygen at sea level would have PAO₂ of about what level?

(Multiple Choice)

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Question 12

At a PaO₂ of 65 mm Hg, what is the approximate saturation of Hb with oxygen?

(Multiple Choice)

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Question 13

How is the vast majority of oxygen carried in the blood?

(Multiple Choice)

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Question 14

Given the following blood parameters, compute the total oxygen content (dissolved + HbO₂) of the blood in ml/dl: Hb = 16; PO₂ = 625 Hg; SO₂ = 100%.

(Multiple Choice)

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Question 15

If the total hemoglobin content (Hb + HbO₂) of a sample of blood is 20 g/dl and the oxyhemoglobin (HbO₂) content is 15 g/dl, what is the HbO₂ saturation?

(Multiple Choice)

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Question 16

What is the primary factor that maintains the pressure gradient that drives oxygen from the capillaries into the interstitial spaces and into the cells?

(Multiple Choice)

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Question 17

The highest PCO₂ levels are found in what location?

(Multiple Choice)

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Question 18

Under normal physiologic circumstances, how many milliliters of oxygen are capable of combining with 1 g of Hb?

(Multiple Choice)

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Question 19

What is the highest PAO₂ one could expect to observe in an individual breathing room air at sea level?

(Multiple Choice)

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Question 20

Showing 1 - 20 of 85

Exam 11: Gas Exchange and Transport

Which of the following would you expect to occur if ventilation to an area of the lung remained constant but perfusion to this same area decreased? I .The PACO2 should fall. II.The PAO2 should fall. III.The V˙\dot { V }V˙ / Q˙\dot { Q }Q˙​ ratio should rise.

The conversion of HbO2 to deoxygenated Hb does which of the following? I.decreases blood carbon dioxide content II.enhances carbon dioxide loading on Hb III.helps buffer H+ ions

A patient has a whole-body oxygen consumption of 320 ml/min and a measured CaO2 - C V\over{V}V​ O2 of 8 ml/dl. What is the cardiac output?

Calculate the approximate PAO2 given the following conditions (assume R = 0.8): FIO2 = .40, PB = 770 mm Hg, PACO2 = 31 mm Hg

Which of the following would you expect to occur if perfusion to an area of the lung remained constant, but VA to this same area decreased?

An area of the lung has no blood flow but is normally ventilated. Which of the following statements are true about this area? I .The alveolar gas is like air (PO2 = 150; PCO2 = 0). II.The area represents alveolar dead space. III.The V˙\dot { V }V˙ / Q˙\dot { Q }Q˙​ is elevated.

The lowest PO2 would normally be found in what location?

When Hb saturation with oxygen is high, less carbon dioxide is carried in the blood. What is this relationship called?

Which of the following would you expect to find with "oxygen debt"? I.accentuated in diseases such as sepsis II.oxygen demand exceeds oxygen delivery III.oxygen excess usage results in debt

Breathing room air, a normal PAO2 - PaO2 of 5 to 10 mm Hg exists due to which of the following? I.anatomical shunts in the pulmonary and cardiac circulations II.normal limitations to oxygen diffusion in the lung III.regional differences in pulmonary ventilation and blood flow

Which of the following applies to the following reaction: Prot-NH2 + CO2 ↔\leftrightarrow↔ Prot-NHCOO- + H+?

A normal person breathing 100% oxygen at sea level would have PAO2 of about what level?

At a PaO2 of 65 mm Hg, what is the approximate saturation of Hb with oxygen?

How is the vast majority of oxygen carried in the blood?

Given the following blood parameters, compute the total oxygen content (dissolved + HbO2) of the blood in ml/dl: Hb = 16; PO2 = 625 Hg; SO2 = 100%.

If the total hemoglobin content (Hb + HbO2) of a sample of blood is 20 g/dl and the oxyhemoglobin (HbO2) content is 15 g/dl, what is the HbO2 saturation?

What is the primary factor that maintains the pressure gradient that drives oxygen from the capillaries into the interstitial spaces and into the cells?

The highest PCO2 levels are found in what location?

Under normal physiologic circumstances, how many milliliters of oxygen are capable of combining with 1 g of Hb?

What is the highest PAO2 one could expect to observe in an individual breathing room air at sea level?

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Which of the following would you expect to occur if ventilation to an area of the lung remained constant but perfusion to this same area decreased? I .The PACO₂ should fall. II.The PAO₂ should fall. III.The $\dot { V }$ / $\dot { Q }$ ratio should rise.

The conversion of HbO₂ to deoxygenated Hb does which of the following? I.decreases blood carbon dioxide content II.enhances carbon dioxide loading on Hb III.helps buffer H⁺ ions

A patient has a whole-body oxygen consumption of 320 ml/min and a measured CaO₂ - C $\over{V}$ O₂ of 8 ml/dl. What is the cardiac output?

Calculate the approximate PAO₂ given the following conditions (assume R = 0.8): FIO₂ = .40, P_B = 770 mm Hg, PACO₂ = 31 mm Hg

Which of the following would you expect to occur if perfusion to an area of the lung remained constant, but V_A to this same area decreased?

An area of the lung has no blood flow but is normally ventilated. Which of the following statements are true about this area? I .The alveolar gas is like air (PO₂ = 150; PCO₂ = 0). II.The area represents alveolar dead space. III.The $\dot { V }$ / $\dot { Q }$ is elevated.

The lowest PO₂ would normally be found in what location?

Breathing room air, a normal PAO₂ - PaO₂ of 5 to 10 mm Hg exists due to which of the following? I.anatomical shunts in the pulmonary and cardiac circulations II.normal limitations to oxygen diffusion in the lung III.regional differences in pulmonary ventilation and blood flow

Which of the following applies to the following reaction: Prot-NH₂ + CO₂ $\leftrightarrow$ Prot-NHCOO^- + H⁺?

A normal person breathing 100% oxygen at sea level would have PAO₂ of about what level?

At a PaO₂ of 65 mm Hg, what is the approximate saturation of Hb with oxygen?

Given the following blood parameters, compute the total oxygen content (dissolved + HbO₂) of the blood in ml/dl: Hb = 16; PO₂ = 625 Hg; SO₂ = 100%.

If the total hemoglobin content (Hb + HbO₂) of a sample of blood is 20 g/dl and the oxyhemoglobin (HbO₂) content is 15 g/dl, what is the HbO₂ saturation?

The highest PCO₂ levels are found in what location?

What is the highest PAO₂ one could expect to observe in an individual breathing room air at sea level?