Shock 1

How is shock (hypoperfusion) defined in the chapter on Emergency Care and Transportation of the Sick and Injured?

• As a psychological condition requiring immediate attention

• As inadequate cellular perfusion

• As an overabundance of cellular perfusion

• As a type of allergic reaction

What can a compromise in perfusion lead to?

• Cellular injury or death

• Improved cellular function

• Increased cellular oxygen

• Decreased cellular waste

Tags

NGSS.HS-LS1-3

What is diffusion as described in the context of respiratory physiology?

• The active transport of molecules from an area of lower concentration to an area of higher concentration.

• The movement of molecules from an area of higher concentration to an area of lower concentration without the use of energy.

• The process by which oxygen is used up by the cells and carbon dioxide is produced.

• The exchange of gases between the blood and the external environment.

Tags

NGSS.HS-LS2-5

Which of the following is NOT a way that carbon dioxide is transported in the blood?

• Dissolved in the plasma.

• Combined with water in the form of bicarbonate.

• Attached to hemoglobin.

• Bound to oxygen molecules.

What is the "perfusion triangle" in the cardiovascular system?

• The heart, lungs, and brain.

• The heart, blood vessels, and blood.

• The heart, liver, and kidneys.

• The heart, spleen, and pancreas.

What does systolic pressure represent?

• The pressure in the arteries when the heart is at rest.

• The pressure in the veins during heartbeats.

• The peak arterial pressure when the heart contracts.

• The difference between the pressure during heartbeats and between heartbeats.

What is pulse pressure?

• The pressure in the arteries when the heart is at rest.

• The peak arterial pressure when the heart contracts.

• The pressure maintained within the arteries while the heart rests between heartbeats.

• The difference between the systolic and diastolic pressures.

What might a pulse pressure of less than 25 mm Hg indicate?

• The patient is experiencing a hypertensive crisis.

• The patient is likely in a state of shock.

• The patient has a healthy cardiovascular system.

• The patient is undergoing a stress test.

What regulates blood flow through the capillary beds?

• The autonomic nervous system

• The capillary sphincters

• The sympathetic nervous system

• Hormones such as epinephrine and norepinephrine

Tags

NGSS.HS-LS1-3

What is the result of the buildup of pulmonary fluid in cardiogenic shock?

• Pulmonary edema

• Vasodilation

• Increased oxygen exchange

• Decreased heart rate

Tags

NGSS.HS-LS1-3