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There are 15 possible causes of shock

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What Is Shock?

Shock is a state of physical shutdown. Your body enters shock when there is not enough circulating blood. Shock can cause multiple organ failure. It can lead to life-threatening complications, such as heart failure.

There are many types of shock. Major types of shock include:

  • cardiogenic
  • anaphylactic
  • septic
  • hypovolemic

All forms of shock are life-threatening. Any symptoms of shock should be reported to a medical professional immediately.

What Are the Signs That Someone Is in Shock?

Recognizing the symptoms of shock can save your life. These symptoms signal that your body is shutting down. They are a sign that you need to get help immediately.

Call 911 for help if you have any of the symptoms of shock. You may experience one or many of the following:

  • decrease in blood pressure
  • rapid, weak, or absent pulse
  • irregular heart rate
  • confusion
  • cool, clammy skin
  • rapid and shallow breathing
  • anxiety
  • lightheadedness
  • decrease in urine
  • chest pain
  • nausea
  • thirst and dry mouth
  • low blood sugar
  • dilated pupils or lackluster eyes
  • fever (septic shock only)
  • hives and swelling of the face and throat (anaphylactic shock only)

What Causes Shock to Occur?

Anything that affects the flow of blood through the body can cause shock. Some common causes of shock are:

  • significant blood loss
  • dehydration
  • allergic reaction
  • reduced blood pressure
  • heart failure
  • nerve damage
  • blood infections

Types of Shock

There are four major types of shock. However, each type of shock can be caused by a number of different events.

Anaphylactic Shock

Anaphylactic shock is a complication of a severe allergic reaction (anaphylaxis). Allergic reactions occur when your body mistakenly sees a harmless substance as harmful. This causes it to send out antibodies to attack. The symptoms of an allergic reaction are actually caused by your body’s response, not by the allergen itself.

Anaphylaxis is usually caused by food allergies or insect bites. A mild reaction may just cause symptoms such as hives or a rash. A major reaction can lead to:

  • difficulty breathing (due to swelling in the airways)
  • low blood pressure
  • blocked airways
  • rapid pulse
  • shock

People with severe allergies often carry a device called an EpiPen/Twinject. This is a device that can automatically inject a hormone called epinephrine. It is used to stop an allergic reaction and prevent anaphylactic shock.

Cardiogenic Shock

Damage to the heart can decrease the blood flow to the body. This can lead to cardiogenic shock.

Common causes of cardiogenic shock are:

  • heart muscle damage
  • irregular heart rhythm
  • tears in the heart
  • very slow heart rhythm

Hypovolemic Shock

This form of shock is brought on by severe blood loss. After blood loss, there is not enough blood to supply the vital organs. This leads to shock.

Septic Shock

Sometimes infections cause bacteria to enter the bloodstream. This can lead to a condition called sepsis (blood poisoning). Septic shock occurs when bacteria and their toxins damage tissues or organs in the body.

Dealing with Shock

Shock can lead to unconsciousness. It can also cause both respiratory and cardiac arrest. If a person goes into shock and becomes unconscious, call 911. Then follow these steps:

  • Check to see if the person is still breathing and if he or she has a heartbeat.
  • If you don’t detect a heartbeat or breathing, begin rescue breathing and emergency CPR.

If the person is breathing:

  • Check his or her breathing every five minutes.
  • Lay him or her on his or her back.
  • Elevate his or her feet at least 12 inches above the ground. This position is referred to as the shock position. It helps keep blood in the vital organs, where it is most needed.

If you suspect movement may harm the person, leave him or her lying flat. You should not move someone who has injuries to the:

  • head
  • neck
  • back
  • spine
  • legs

Apply first aid to any visible wounds.

If the person begins to vomit, turn his or her head sideways. This helps to prevent choking.

However, if the person has an injury to the spine, do not turn his or her head. Instead, stabilize the neck, then roll his or her entire body to the side.

Diagnosing Shock

The symptoms of shock are often enough to diagnose the condition. Doctors will also look for:

  • low blood pressure
  • weak pulse
  • rapid heartbeat

The first priority is lifesaving treatment. The goal is to get blood circulating through the body again as quickly as possible. Once the person is stable, doctors will then try to diagnose whatever caused the shock. This is often done using imaging and blood tests.

Imaging Tests

Imaging tests may be used to check for injuries such as:

  • fracture
  • organ rupture
  • muscle or tendon tears
  • abnormal growths

Such tests include:

  • ultrasound
  • X-ray
  • CT scan (computed tomography scan)
  • MRI (magnetic resonance imaging)

Blood Tests

Blood tests can look for:

  • an infection in the blood (sepsis)
  • significant blood loss
  • signs of drug or medication overdose

Treatment for Shock

Treatment for shock depends on why the shock occurred. The different types of shock are all treated differently. For example:

  • Hypovolemic shock is usually treated by blood transfusion. You will receive donor blood to replace the blood you lost. It is pumped into your vein through an intravenous (IV) line.
  • Shock caused by dehydration is treated with IV fluids.
  • Shock caused by anaphylaxis is treated with epinephrine and other drugs.
  • Cardiogenic shock is treated by improving blood flow through your heart.

Can Someone Recover Fully From Shock?

A full recovery from shock is possible. However, recovery depends greatly on the length of time the person was in shock. Other factors that determine recovery are:

  • what organs were affected
  • extent of organ damage
  • extent of nursing care
  • age
  • cause of shock

Shock has a high risk of death. It is critical to call 911 immediately if you find someone experiencing symptoms of shock.

Preventing Shock

Some forms of shock are preventable. Take the following steps to reduce your risk of developing shock:

  • Stay hydrated. This is especially important when it is very hot or humid. Make sure you drink the recommended eight to 10 glasses of water per day. If you’re active, increase your fluid intake.
  • Wear proper footwear to prevent falls.
  • To prevent injury, wear protective gear when taking part in contact sports or using dangerous equipment.
  • Carry an epinephrine injector if you have severe allergies. This can stop an allergic reaction before it becomes anaphylactic shock.

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Possible Causes - Listed in order from the most common to the least.

1

Bleeding

This condition is considered a medical emergency. Urgent care may be required.

Bleeding can refer to blood loss inside the body (internal bleeding) or blood loss outside of the body (external bleeding). It can cause bruising, pain, and symptoms of shock. Too much bleeding can lead to death.

Read more »

2

Septicemia

This condition is considered a medical emergency. Urgent care may be required.

Septicemia is bacterial infection spread through the entire vascular system of the body. If untreated, it can result in sepsis, a life-threatening inflammation. A main symptom is blue lips or finger nails.

Read more »

3

Meningococcemia

This condition is considered a medical emergency. Urgent care may be required.

Meningococcemia is a bacterial blood infection caused by the same type of bacteria that causes some types of meningitis. Advanced symptoms of the infection include blood clots and bleeding under the skin.

Read more »

4

Abdominal Aortic Aneurysm

This condition is considered a medical emergency. Urgent care may be required.

The aorta carries blood from your heart down to your abdomen, legs, and pelvis. Swollen or bulging aortic walls in the abdomen is known as an abdominal aortic aneurysm, which causes pain.

Read more »

5

Adult Respiratory Distress Syndrome

This condition is considered a medical emergency. Urgent care may be required.

Adult respiratory distress syndrome (ARDS) is a severe lung condition that occurs when fluid fills up the air sacs in your lungs. Common symptoms include labored breathing, fever, fast pulse, and blue skin or nails.

Read more »

6

Burns

This condition is considered a medical emergency. Urgent care may be required.

A burn is damage to the skin or body normally caused by exposure to heat or hot substances. Some symptoms are pain, red skin, and blisters.

Read more »

7

Thyroid Storm

This condition is considered a medical emergency. Urgent care may be required.

Thyroid storm is a life-threatening condition that results from undertreated or untreated hyperthyroidism. Persistent sweating is one possible sign of thyroid storm.

Read more »

8

Carbon Monoxide Poisoning

This condition is considered a medical emergency. Urgent care may be required.

Carbon monoxide poisoning occurs when we inhale too much carbon monoxide. It can lead to tissue damage and possibly death. Signs include a dull headache, nausea, confusion, and blue lips or skin.

Read more »

9

Epidural Hematoma

This condition is considered a medical emergency. Urgent care may be required.

An epidural hematoma occurs when blood fills the area between the skull and the protective covering of the brain. It usually results from a traumatic injury to the head, and puts you at risk for brain damage or death.

Read more »

11

Colitis

Colitis is inflammation of the colon. Other parts of your intestines, which includes, the colon, may also be affected. If you have colitis, you will feel discomfort and pain in your abdomen. You symptoms maybe be mil...

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12

Anthrax

This condition is considered a medical emergency. Urgent care may be required.

Anthrax is a serious illness caused by a microbe that lives in soil, called Bacillus anthracis. It became famous in 2001 when anthrax was used as a biological weapon and sent in the United States mail. The anthra...

Read more »

13

Kwashiorkor

Kwashiorkor is the most common and widespread nutritional disorder in developing countries. It is a form of malnutrition caused by not getting enough protein in your diet. Every cell in your body contains protein. Yo...

Read more »

14

The Plague

The plague is a serious bacterial infection that can be deadly. Sometimes referred to as the "black plague," the disease is caused by bacteria called Yersinia pestis. This bacteria is found on animal...

Read more »

15

Chlorine Poisoning

This condition is considered a medical emergency. Urgent care may be required.

Chlorine is a chemical that is used to prevent bacteria from growing in water, as well as for sanitation for sewage and industrial waste. It is also an ingredient in several household cleaning products.Chlorin...

Read more »

This feature is for informational purposes only and should not be used to diagnose.
Please consult a healthcare professional if you have health concerns.
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