Question 1

What is the primary treatment for heat stroke?

Accepted Answer

A)  Rapid reduction of body temperature 
B)  Rehydrate as rapidly as possible 
C)  Restore electrolytes as rapidly as possible 
D)  Reduce PaCO₂ as rapidly as possible 
A)  Rapid reduction of body temperature 
B)  Rehydrate as rapidly as possible 
C)  Restore electrolytes as rapidly as possible 
D)  Reduce PaCO₂ as rapidly as possible

Question 2

How does the Frank-Starling curve affect stroke volume during exercise?

Accepted Answer

A)  The increased venous return causes cardiac chambers to increase in size and thus contract with more force 
B)  The increased sympathetic stimulation causes the heart to be faster with smaller stroke volumes 
C)  The Frank-Starling curve is only activated when the heart rate reaches 90% of the maximum targeted rate 
D)  The Frank-Starling law only affects heart rate, not stroke volume 
A)  The increased venous return causes cardiac chambers to increase in size and thus contract with more force 
B)  The increased sympathetic stimulation causes the heart to be faster with smaller stroke volumes 
C)  The Frank-Starling curve is only activated when the heart rate reaches 90% of the maximum targeted rate 
D)  The Frank-Starling law only affects heart rate, not stroke volume

Question 3

What is the formula for calculating the maximum heart rate?

Accepted Answer

A)  maximum heart rate = 220 - (age in years) 
B)  maximum heart rate = 250- (age in years x 2) 
C)  maximum heart rate = 220 - (age in years x 1.5) 
D)  maximum heart rate = 250 -(age in years +20) 
A)  maximum heart rate = 220 - (age in years) 
B)  maximum heart rate = 250- (age in years x 2) 
C)  maximum heart rate = 220 - (age in years x 1.5) 
D)  maximum heart rate = 250 -(age in years +20)

Question 4

At what exercise level would the alveolar-arterial PO₂ difference be expected to change?

Accepted Answer

A)  It will increase when 40% or more of maximum oxygen consumption is reached 
B)  It will increase when 60% or more of maximum oxygen consumption is reached 
C)  It will start to decrease when 40% or more of maximum oxygen consumption is reached 
D)  It will start to decrease when 60% or more of maximum oxygen consumption is reached 
A)  It will increase when 40% or more of maximum oxygen consumption is reached 
B)  It will increase when 60% or more of maximum oxygen consumption is reached 
C)  It will start to decrease when 40% or more of maximum oxygen consumption is reached 
D)  It will start to decrease when 60% or more of maximum oxygen consumption is reached

Question 5

What changes would be expected in the oxygen consumption and cardiac output when muscle work decreases?

Accepted Answer

A)  Both would decrease 
B)  Both would increase 
C)  Oxygen consumption would remain unchanged but CO would decrease 
D)  Both would remain unchanged 
A)  Both would decrease 
B)  Both would increase 
C)  Oxygen consumption would remain unchanged but CO would decrease 
D)  Both would remain unchanged

Question 6

Which exhibits the highest percent of change in a marathon runner?
I.Cardiac output
II.Stroke volume
III.Heart rate

Accepted Answer

A)  I only 
B)  II only 
C)  III only 
D)  I and II increase by the same amount 
A)  I only 
B)  II only 
C)  III only 
D)  I and II increase by the same amount

Question 7

Why would stroke volume increase during exercise?
I.Parasympathetic discharge increases cardiac contractility
II.Vasodilation of working muscles increases venous return to the heart
III.Vascoconstriction of peripheral venous blood reservoirs increases venous return

Accepted Answer

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

Question 8

What effect does maximum exercise have on oxygen diffusion capacity?

Accepted Answer

A)  It can increase up to 3-fold 
B)  It can increase up to 10 fold 
C)  It can decrease by 33% 
D)  It can decrease by 10% 
A)  It can increase up to 3-fold 
B)  It can increase up to 10 fold 
C)  It can decrease by 33% 
D)  It can decrease by 10%

Question 9

What change would be expected in mean pulmonary arterial pressure and pulmonary capillary wedge pressure during intense exercise?

Accepted Answer

A)  Both should increase 
B)  Both should remain within normal limits 
C)  The mean pulmonary artery pressure would increase and PCWP would remain within normal limits 
D)  PCWP would increase but mean pulmonary artery pressure would drop due to the increased recruitment of pulmonary capillaries 
A)  Both should increase 
B)  Both should remain within normal limits 
C)  The mean pulmonary artery pressure would increase and PCWP would remain within normal limits 
D)  PCWP would increase but mean pulmonary artery pressure would drop due to the increased recruitment of pulmonary capillaries

Question 10

.During exercise,how much variation would be expected to occur in the systolic blood pressure?

Accepted Answer

A)  increase by 20-80 mm Hg 
B)  increase by 40-100 mm Hg 
C)  increase less than 10 mm Hg 
D)  Systolic pressure would remain unchanged with exercise 
A)  increase by 20-80 mm Hg 
B)  increase by 40-100 mm Hg 
C)  increase less than 10 mm Hg 
D)  Systolic pressure would remain unchanged with exercise

Question 11

What primary factor is responsible for the normal change in oxygen diffusion capacity during maximum exercise?

Accepted Answer

A)  The increased cardiac output results in recuitment of pulmonary capillaries 
B)  The increased cardiac output results in increased ventilation/perfusion mismatch 
C)  Hyperventilation results in increased increased PaO₂s 
D)  Hyperventilation results in lowered H+ levels which shifts the oxygen dissociation curve 
A)  The increased cardiac output results in recuitment of pulmonary capillaries 
B)  The increased cardiac output results in increased ventilation/perfusion mismatch 
C)  Hyperventilation results in increased increased PaO₂s 
D)  Hyperventilation results in lowered H+ levels which shifts the oxygen dissociation curve

Question 12

In healthy adults at rest on FIO₂ 0.21,what does the mean alveolar-arterial oxygen tension difference equal?

Accepted Answer

A)  10 mm Hg 
B)  20 mm Hg 
C)  30 mm Hg 
D)  40 mm Hg 
A)  10 mm Hg 
B)  20 mm Hg 
C)  30 mm Hg 
D)  40 mm Hg

Question 13

At rest,what portion of the muscle capillaries are dilated?

Accepted Answer

A)  20-25% 
B)  2-5% 
C)  30-35% 
D)  5-10% 
A)  20-25% 
B)  2-5% 
C)  30-35% 
D)  5-10%

Question 14

What is the term for the point at which the energy pathways that produce lactic acid start to operate?

Accepted Answer

A)  Anaerobic threshold 
B)  Aerobic threshold 
C)  Cardiovascular threshold 
D)  Isometric threshold 
A)  Anaerobic threshold 
B)  Aerobic threshold 
C)  Cardiovascular threshold 
D)  Isometric threshold

What is the primary treatment for heat stroke?

How does the Frank-Starling curve affect stroke volume during exercise?

What is the formula for calculating the maximum heart rate?

At what exercise level would the alveolar-arterial PO₂ difference be expected to change?

What changes would be expected in the oxygen consumption and cardiac output when muscle work decreases?

Which exhibits the highest percent of change in a marathon runner? I.Cardiac output II.Stroke volume III.Heart rate

Why would stroke volume increase during exercise? I.Parasympathetic discharge increases cardiac contractility II.Vasodilation of working muscles increases venous return to the heart III.Vascoconstriction of peripheral venous blood reservoirs increases venous return

What effect does maximum exercise have on oxygen diffusion capacity?

What change would be expected in mean pulmonary arterial pressure and pulmonary capillary wedge pressure during intense exercise?

.During exercise,how much variation would be expected to occur in the systolic blood pressure?

What primary factor is responsible for the normal change in oxygen diffusion capacity during maximum exercise?

In healthy adults at rest on FIO₂ 0.21,what does the mean alveolar-arterial oxygen tension difference equal?

At rest,what portion of the muscle capillaries are dilated?

What is the term for the point at which the energy pathways that produce lactic acid start to operate?

The Anatomy and Physiology of the Respiratory System

Ventilation

Pulmonary Function Measurements

The Diffusion of Pulmonary Gases

The Anatomy and Physiology of the Circulatory System

Oxygen and Carbon DioxideTransport

Acid Base Balance

Ventilation Perfusion Relationships

Control of Ventilation

Fetal Development and the Cardiopulmonary System

Aging and the Cardiopulmonary System

Electrophysiology of the Heart

The Standard 12 ECG System

ECG Interpretation

Hemodynamic Measurements

Renal Failure and Its Effects on the Cardiopulmonary System

Sleep Physiology and Its Relationship to the Cardiopulmonary System

High Altitude and Its Effects on the Cardiopulmonary System

High Pressure Environments and Their Effects on the Cardiopulmonary System

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Exam 18: Exercise and Its Effects on the Cardiopulmonary System

What is the primary treatment for heat stroke?

How does the Frank-Starling curve affect stroke volume during exercise?

What is the formula for calculating the maximum heart rate?

At what exercise level would the alveolar-arterial PO₂ difference be expected to change?

What changes would be expected in the oxygen consumption and cardiac output when muscle work decreases?

Which exhibits the highest percent of change in a marathon runner? I.Cardiac output II.Stroke volume III.Heart rate

Why would stroke volume increase during exercise? I.Parasympathetic discharge increases cardiac contractility II.Vasodilation of working muscles increases venous return to the heart III.Vascoconstriction of peripheral venous blood reservoirs increases venous return

What effect does maximum exercise have on oxygen diffusion capacity?

What change would be expected in mean pulmonary arterial pressure and pulmonary capillary wedge pressure during intense exercise?

.During exercise,how much variation would be expected to occur in the systolic blood pressure?

What primary factor is responsible for the normal change in oxygen diffusion capacity during maximum exercise?

In healthy adults at rest on FIO₂ 0.21,what does the mean alveolar-arterial oxygen tension difference equal?

At rest,what portion of the muscle capillaries are dilated?

What is the term for the point at which the energy pathways that produce lactic acid start to operate?

The Anatomy and Physiology of the Respiratory System

Ventilation

Pulmonary Function Measurements

The Diffusion of Pulmonary Gases

The Anatomy and Physiology of the Circulatory System

Oxygen and Carbon DioxideTransport

Acid Base Balance

Ventilation Perfusion Relationships

Control of Ventilation

Fetal Development and the Cardiopulmonary System

Aging and the Cardiopulmonary System

Electrophysiology of the Heart

The Standard 12 ECG System

ECG Interpretation

Hemodynamic Measurements

Renal Failure and Its Effects on the Cardiopulmonary System

Sleep Physiology and Its Relationship to the Cardiopulmonary System

High Altitude and Its Effects on the Cardiopulmonary System

High Pressure Environments and Their Effects on the Cardiopulmonary System

Filters