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Questions and Answers
What type of wound is caused by a clean surface cut from a sharp-edged object?
What type of wound is caused by a clean surface cut from a sharp-edged object?
A laceration is less likely to be contaminated with foreign particles compared to an incised wound.
A laceration is less likely to be contaminated with foreign particles compared to an incised wound.
False
What is the first reaction of a blood vessel when it is damaged?
What is the first reaction of a blood vessel when it is damaged?
The blood vessel constricts.
An _____ is caused by a sliding injury that scrapes off the top layers of skin.
An _____ is caused by a sliding injury that scrapes off the top layers of skin.
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Which type of bleeding occurs when large blood vessels are severed?
Which type of bleeding occurs when large blood vessels are severed?
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Match the type of wound with its description:
Match the type of wound with its description:
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All types of wounds bleed at the same rate.
All types of wounds bleed at the same rate.
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What risk is higher with lacerations compared to incised wounds?
What risk is higher with lacerations compared to incised wounds?
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What type of wound is caused by a sharp instrument penetrating the body?
What type of wound is caused by a sharp instrument penetrating the body?
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A puncture wound usually has a large entry site but a shallow track of internal damage.
A puncture wound usually has a large entry site but a shallow track of internal damage.
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What substance is formed that traps blood cells to create a blood clot?
What substance is formed that traps blood cells to create a blood clot?
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When a blood vessel is damaged, it first __________ to prevent blood from escaping.
When a blood vessel is damaged, it first __________ to prevent blood from escaping.
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Match the type of wound with its characteristic:
Match the type of wound with its characteristic:
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What is the average blood volume in an adult?
What is the average blood volume in an adult?
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What is one risk associated with puncture wounds?
What is one risk associated with puncture wounds?
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Bleeding can lead to shock or death due to a drop in blood volume and blood pressure.
Bleeding can lead to shock or death due to a drop in blood volume and blood pressure.
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Which type of bleeding is characterized by plentiful blood flow and spraying with each heartbeat?
Which type of bleeding is characterized by plentiful blood flow and spraying with each heartbeat?
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External bleeding is not obvious and cannot be seen.
External bleeding is not obvious and cannot be seen.
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Name one potential cause of internal bleeding.
Name one potential cause of internal bleeding.
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Bleeding from veins is _____ in color compared to arterial bleeding.
Bleeding from veins is _____ in color compared to arterial bleeding.
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Match the type of bleeding with its characteristic:
Match the type of bleeding with its characteristic:
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What should you do if there is an object embedded in the wound?
What should you do if there is an object embedded in the wound?
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A weak and rapid pulse can indicate the onset of shock.
A weak and rapid pulse can indicate the onset of shock.
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What position should the injured limb be raised to during bleeding?
What position should the injured limb be raised to during bleeding?
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What should you advise a casualty with a nosebleed to avoid doing to prevent disturbing blood clots?
What should you advise a casualty with a nosebleed to avoid doing to prevent disturbing blood clots?
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A casualty with a nosebleed should tilt their head back to prevent blood from running down the throat.
A casualty with a nosebleed should tilt their head back to prevent blood from running down the throat.
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What immediate action should be taken to manage a nosebleed?
What immediate action should be taken to manage a nosebleed?
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If bleeding lasts longer than ______ minutes, the casualty should be sent to the hospital.
If bleeding lasts longer than ______ minutes, the casualty should be sent to the hospital.
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Match the following actions with their purposes during a nosebleed.
Match the following actions with their purposes during a nosebleed.
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What should you do if the circulation is impaired after applying a bandage?
What should you do if the circulation is impaired after applying a bandage?
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You should press directly on an object embedded in a wound to control bleeding.
You should press directly on an object embedded in a wound to control bleeding.
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What should you use to protect a wound with an embedded object?
What should you use to protect a wound with an embedded object?
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When managing a bruise, a __________ compress should be placed over it for at least 10 minutes.
When managing a bruise, a __________ compress should be placed over it for at least 10 minutes.
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What should NOT be done with a detached limb that may be reattached?
What should NOT be done with a detached limb that may be reattached?
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Match the type of bleeding with its description:
Match the type of bleeding with its description:
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What should be done to control bleeding for a wound on the palm?
What should be done to control bleeding for a wound on the palm?
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You should monitor and record __________ signs while waiting for help to arrive.
You should monitor and record __________ signs while waiting for help to arrive.
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Study Notes
First Aid in Bleeding and Wounds
- Wounds are classified by the object and manner of injury.
- Types of wounds include incised, laceration, and abrasion (graze).
- Incised wounds are caused by sharp objects, such as a razor, and cut straight through tissues.
- Lacerations are caused by blunt force and result in tears in the tissue.
- Abrasions (grazes) are caused by friction or a fall, and result in the top layers of skin being scraped off.
- Contusions are bruises caused by blunt force, leading to blood leaking into tissues.
- Puncture wounds are made by a sharp object piercing the skin, resulting in a small entry point.
- Stab wounds are caused by a sharp object piercing the body.
- Gunshot wounds are caused by the entrance of a bullet or missile.
How Wounds Heal
- When a blood vessel is damaged, it constricts to prevent blood loss.
- Platelets and tissue cells trigger a chemical reaction forming a mesh.
- The mesh traps blood cells, forming a blood clot.
- Serum (a fluid) is released, containing antibodies and cells to repair damage.
- Fibroblasts form a plug within the clot, which dries into a crust.
- The clot protects the wound during healing.
Bleeding
- Average adult blood volume is 5-6 liters.
- Bleeding can cause a drop in blood volume and pressure, leading to shock.
- Types of bleeding categorized by blood vessel type include arterial, venous, and capillary bleeding.
- Arterial bleeding is rapid and spurting.
- Venous bleeding is slow and steady.
- Capillary bleeding is slow and oozing.
- Internal bleeding is hidden, meaning the blood loss isn't immediately apparent.
- External bleeding is apparent and visible.
- Causes of bleeding include injuries, diseases (like hemophilia), and ulcers.
What to do in case of Bleeding
- Remove or cut clothing to expose the wound.
- Apply direct pressure to the wound with a sterile dressing at the point of bleeding.
- Raise the injured limb above the heart to reduce blood loss.
- Help the casualty lie down and keep them warm, support their legs above their heart.
- Call emergency services.
- Support the injured part in a raised position with a firm bandage.
- Check circulation every 10 minutes.
- Monitor and record vital signs.
Object in a Wound
- If an object is embedded in the wound, control bleeding by pressing firmly on either side to bring the edges together.
- Do not remove the object immediately. Place a gauze pad over the object.
- Build up padding around the object before bandaging to prevent pressure against it.
Other Types of bleeding
- Abdominal bleeding can result from injuries to major blood vessels.
- Amputation injuries may require microsurgery to reattach the limb.
- Nosebleeds may be controlled by having the person lean forward, pinching the nostrils, and keeping the head still.
Bruising
- Bruises can develop rapidly after an injury.
- People taking anticoagulants (such as aspirin or warfarin), and the elderly are more prone to bruising.
- Cold compress should be used.
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Description
This quiz covers the classification of wounds, including incised, laceration, and abrasion. It also discusses the healing process of wounds starting from blood vessel constriction to the formation of blood clots. Test your knowledge on these critical first aid concepts.
