EMT Basic: Key Terms on Perfusion and Circulatory Emergencies Quiz

Emergency Medical Services

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| Questions: 18 | Updated: Oct 22, 2025

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1. What is perfusion?

The process of filtering blood in the kidneys to remove waste and excess fluids.

The supply of oxygen to and removal of wastes from the cells and tissues of the body as a resault... The supply of oxygen to and removal of wastes from the cells and tissues of the body as a resault of the flow of blood through the capillaries.

The process of converting food into energy in cells.

The movement of air in and out of the lungs during breathing.

Perfusion specifically refers to the flow of blood through the capillaries to supply oxygen and remove wastes from cells. The other options refer to different physiological processes.

Explanation

Perfusion specifically refers to the flow of blood through the capillaries to supply oxygen and remove wastes from cells. The other options refer to different physiological processes.

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About This Quiz

EMT Basic: Key Terms On Perfusion and Circulatory Emergencies Quiz - Quiz

Enhance your understanding of essential terms in emergency medical services with the Chapter 26 EMT Basic Key Terms quiz. This educational tool is designed to assess and reinforce knowledge crucial for EMT professionals, aiding in effective emergency response.

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2. What is hypoperfusion?

Increased blood circulation to the body's cells.

Excessive supply of oxygen and nutrients to the body's cells.

Underproduction of blood within the body.

Inability of the body to adequately circulate blood to the body's cells to supply them with oxygen and nutrients. (see... Inability of the body to adequately circulate blood to the body's cells to supply them with oxygen and nutrients. (see shock)

Hypoperfusion refers to the inadequate circulation of blood, leading to a reduction in the supply of oxygen and nutrients to the body's cells. This can result in serious health consequences, such as shock, if not addressed promptly.

Explanation

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3. What is shock?

(also known as hypoperfusion)Inability of the body to adequately circulate blood to the body's cells to supply them with oxygenand... (also known as hypoperfusion)Inability of the body to adequately circulate blood to the body's cells to supply them with oxygenand nutrients.LIFE-THREATENING CONDITION!

A type of electrical appliance

A sudden jolt or disturbance

A state of surprise or disbelief

Shock in a medical context refers to a serious condition where the body is unable to circulate enough blood to vital organs, leading to a life-threatening situation.

Explanation

Shock in a medical context refers to a serious condition where the body is unable to circulate enough blood to vital organs, leading to a life-threatening situation.

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4. What is a hemorrhage?

Bleeding, Especially sever bleeding.

A type of stomach virus.

A type of headache.

A skin rash.

A hemorrhage refers to the abnormal internal or external bleeding, typically due to a rupture of blood vessels.

Explanation

A hemorrhage refers to the abnormal internal or external bleeding, typically due to a rupture of blood vessels.

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5. What is arterial bleeding?

Capillary bleeding, which is minor and often stops on its own.

Internal bleeding, which cannot be easily seen but can be life-threatening if left untreated.

Venous bleeding, which is slow, steady, and dark red in color.

Bleeding from an artery, which is characterized by bright red blood and as rapid, profuse, and difficult to control.

Arterial bleeding is a serious type of bleeding that can result in rapid blood loss and requires immediate medical attention. Understanding the characteristics of different types of bleeding is crucial for providing appropriate first aid and seeking timely medical help.

Explanation

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6. What is venous bleeding?

Bleeding from a lymphatic vessel, which is characterized by clear or pale yellow fluid leaking from the wound.

Bleeding from an artery, which is characterized by bright red blood spurting out in rhythmic pulses.

Bleeding from a vein, which is characterized by dark red blood or maroon blood as a steady flow, easy to... Bleeding from a vein, which is characterized by dark red blood or maroon blood as a steady flow, easy to control.

Bleeding from a capillary, which is characterized by slow oozing of blood and can be difficult to control.

Venous bleeding refers to bleeding from a vein, which usually results in dark red or maroon blood flowing steadily from the wound. It is relatively easy to control compared to arterial bleeding, capillary bleeding, or lymphatic vessel bleeding.

Explanation

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7. What is capillary bleeding?

Bleeding from arterioles, which is characterized by a dark red, thick flow of blood.

Bleeding from cappilaries, which is characterized by a slow, oozing flow of blood.

Bleeding from arteries, which is characterized by a fast, spurting flow of blood.

Bleeding from veins, which is characterized by a slow, steady flow of blood.

Capillary bleeding refers to bleeding from tiny blood vessels called capillaries, which have thin walls allowing blood to seep out slowly. The other incorrect answers describe bleeding from different types of blood vessels with distinct characteristics as a way to differentiate them from capillary bleeding.

Explanation

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8. What is a pressure dressing?

A bulky dressing held in position with a tightly wrapped bandage to apply pressure to help control bleeding.

A type of dressing used for applying pressure to control pain.

A dressing that is loosely wrapped around the wound to allow for easy movement.

A dressing made of waterproof materials to protect the wound from water.

A pressure dressing is specifically designed to apply pressure to help control bleeding and is held in position with a tightly wrapped bandage, unlike the other incorrect options.

Explanation

A pressure dressing is specifically designed to apply pressure to help control bleeding and is held in position with a tightly wrapped bandage, unlike the other incorrect options.

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9. What is a tourniquet?

A device use for bleeding control that constricts all blood flow to and from an extremity.

A tool for measuring distance.

A musical instrument played in orchestras.

A type of French pastry.

A tourniquet is a medical device used to control severe bleeding by constricting blood flow to a limb. It is not related to pastries, measuring distance, or musical instruments.

Explanation

A tourniquet is a medical device used to control severe bleeding by constricting blood flow to a limb. It is not related to pastries, measuring distance, or musical instruments.

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10. What is a pressure point?

A site where a main artery lies near the surface of the body and directly over a bone. Pressureon such... A site where a main artery lies near the surface of the body and directly over a bone. Pressureon such a point can stop distal bleeding.

A type of massage technique used for stress relief.

A point on the body where one should apply maximum force to cause pain.

A type of yoga pose used for increasing flexibility.

Pressure points are specific areas on the body that can be used to manipulate the body's natural energies to heal and alleviate pain.

Explanation

Pressure points are specific areas on the body that can be used to manipulate the body's natural energies to heal and alleviate pain.

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11. What is the Brachial Artery?

An artery in the brain

A vein in the leg

A bone in the foot

The major artery of the upper arm.(Mostly used to check babies pulse)

The Brachial Artery is a major artery located in the upper arm, commonly used to check the pulse in babies. It is not a vein in the leg, a bone in the foot, or an artery in the brain.

Explanation

The Brachial Artery is a major artery located in the upper arm, commonly used to check the pulse in babies. It is not a vein in the leg, a bone in the foot, or an artery in the brain.

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12. What does the Femoral Artery supply?

The abdomen

The major artery supplying the thigh

The head

The arm

The Femoral Artery is the major artery supplying blood to the thigh, not to the arm, head, or abdomen.

Explanation

The Femoral Artery is the major artery supplying blood to the thigh, not to the arm, head, or abdomen.

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13. What is compensated shock?

When the patient is in shock but has already lost consciousness.

When the patient is developing shock, but the body is still ableto maintain perfusion.(See Shock)

When the patient is experiencing shock symptoms but the body is not responding.

When the patient is in a state of extreme shock and unable to maintain perfusion.

Compensated shock occurs when the body is still able to maintain perfusion despite the development of shock symptoms, allowing for compensation mechanisms to keep vital organs supplied with blood and oxygen.

Explanation

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14. What is hemorrhagic shock?

An allergic reaction to certain food.

Shock due to a sudden drop in blood pressure.

Shock resulting from blood loss.

A condition caused by excessive drinking of alcohol.

Hemorrhagic shock specifically refers to shock that is caused by significant blood loss, leading to inadequate perfusion of tissues and organs.

Explanation

Hemorrhagic shock specifically refers to shock that is caused by significant blood loss, leading to inadequate perfusion of tissues and organs.

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15. What is cardiogenic shock?

Shock, or lack of perfusion, brought on not by blood loss, but by inadequate pumping action of the heart. it... Shock, or lack of perfusion, brought on not by blood loss, but by inadequate pumping action of the heart. it is often the result of a heart attack or congestive heart faliure.

An immune system overreaction to an infection

A condition caused by excessive blood loss

An allergic reaction to certain medications

Cardiogenic shock is specifically related to the heart's pumping action, not blood loss, allergies, or immune system responses.

Explanation

Cardiogenic shock is specifically related to the heart's pumping action, not blood loss, allergies, or immune system responses.

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16. What is Neurogenic Shock?

A condition where the brain stops sending signals to the body's organs

A sudden increase in brain activity leading to seizure-like symptoms

Hypoperfusion due to nerve paralysis (sometimes caused by spinal cord injuries) resulting in the dilation of blood vessels that increases... Hypoperfusion due to nerve paralysis (sometimes caused by spinal cord injuries) resulting in the dilation of blood vessels that increases the volume of the circulatory system beyond the point where it can be filled.

An allergic reaction to a particular type of nerve toxin

Neurogenic Shock is a type of shock caused by nerve paralysis and circulatory system dysfunction, not by a brain signaling issue, an allergic reaction, or increased brain activity.

Explanation

Neurogenic Shock is a type of shock caused by nerve paralysis and circulatory system dysfunction, not by a brain signaling issue, an allergic reaction, or increased brain activity.

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17. What is decompensated shock?

Occurs when the body successfully compensates for low blood volume and lack of perfusion.

Is a type of shock that results in increased blood pressure and heart rate.

Occurs when the body can no longer compensate for low blood volume or lack of perfusion. Late signs such as... Occurs when the body can no longer compensate for low blood volume or lack of perfusion. Late signs such as decreasing blood pressure become evident.

Occurs when the body is able to easily regulate blood volume and perfusion.

Decompensated shock is a critical stage where the body's compensatory mechanisms are overwhelmed, leading to visible signs such as decreasing blood pressure.

Explanation

Decompensated shock is a critical stage where the body's compensatory mechanisms are overwhelmed, leading to visible signs such as decreasing blood pressure.

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18. What is irreversible shock?

A temporary condition where the body experiences a sudden drop in blood pressure but quickly recovers.

A type of shock that occurs only in severe trauma cases but can be reversed with immediate medical attention.

When the body has lost the battle to maintain perfusion to vital organs. Even if adequate vital signs return, the... When the body has lost the battle to maintain perfusion to vital organs. Even if adequate vital signs return, the patient may die days later due to organ falliure.

A state where the body is in shock but can recover fully with treatment.

Irreversible shock is a critical condition where the body is unable to restore perfusion to vital organs, leading to organ failure and potential death even if vital signs temporarily improve.

Explanation

Irreversible shock is a critical condition where the body is unable to restore perfusion to vital organs, leading to organ failure and potential death even if vital signs temporarily improve.

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