Transcript Chapter 34

Chapter 34 Bleeding and Soft Tissue Trauma

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34-1

Objectives 34-2

Anatomy of the Skin

Body's first line of defense against

Bacteria and other organisms

Ultraviolet rays

Harmful chemicals

Cuts and tears

Helps regulate body temperature

Senses heat, cold, touch, pressure, and pain 34-3

Layers of the Skin 34-4

Bleeding

34-5

Wounds

Wound

Injury to the soft tissues

Closed wound

Soft tissues under the skin are damaged

Skin surface is not broken

Example: bruise 34-6

Wounds

Open wound

Skin surface is broken 34-7

Hemorrhage

• • •

Bleeding

Can occur from capillaries, veins, or arteries The larger the blood vessel, the greater the bleeding and blood loss Hemorrhage

Excessive loss of blood from a blood vessel

Also called major bleeding 34-8

Blood Clotting

If a blood vessel is cut or torn:

Immediate contraction of blood vessel wall

Platelets try to plug the torn vessel

Clot begins to form at site of torn vessel

Clotting usually complete within 6 to 10 min 34-9

Types of Bleeding Arterial

Arterial bleeding

Life-threatening

Bright red, oxygen-rich blood

Spurts from the wound 34-10

Types of Bleeding Venous

Venous bleeding

Flows as a steady stream

Dark red or maroon

Oxygen-poor blood

Usually easier to control than arterial bleeding 34-11

Types of Bleeding Capillary

Capillary bleeding

Oozes slowly from the wound

Dark red blood

Usually not serious

Often clots and stops by itself 34-12

Types of Bleeding C o l o r Blood Flow Bleeding Control Arterial Bright red

Spurts with each heart beat Difficult to control

Venous Dark red, maroon

Flows steadily

Capillary Dark red

Oozes slowly Usually easier to control than arterial bleeding Bleeding from deep veins may be hard to control Often clots and stops by itself

27-13

External Bleeding

External bleeding is bleeding that you can see

Blood flows through an open wound

Control bleeding manually until bleeding stops 34-14

Emergency Care of External Bleeding 34-15

Scene Size-Up

Make sure the scene is safe to enter

Evaluate mechanism of injury / nature of illness

Personal protective equipment (PPE) 34-16

Remember!

• • • • •

NEVER

touch blood or body fluids with your bare hands

ALWAYS

contact wear PPE during

every

patient Wash your hands Throw away contaminated PPE in an appropriate container Report the exposure immediately 34-17

Primary Survey

• •

Form a general impression Then, assess:

Airway

Breathing

Circulation

• •

Look for major (severe) bleeding Control bleeding if present 34-18

Adult Child Infant

Severity of Blood Loss

Normal Blood Volume 800 mL Severe Blood Loss 5000 to 6000 mL Loss of 1000 mL or more 2000 mL Loss of 500 mL or more Loss of 100 to 200 mL or more

34-19

Controlling External Bleeding Three methods: 1. Applying direct pressure to the wound 2. Applying a splint 3. Applying a tourniquet (if the bleeding is severe and cannot be controlled with direct pressure) 34-20

Direct Pressure 34-21

Pressure Bandage 34-22

Pressure (Air) Splint 34-23

Pneumatic Antishock Garment 34-24

Tourniquet

Tourniquet

A tight bandage that surrounds an arm or leg

Used to stop the flow of blood in the limb

May be considered when direct pressure has failed to control hemorrhage 34-25

Tourniquet 34-26

Tourniquet 34-27

Tourniquet 34-28

Tourniquet 34-29

Tourniquets Precautions

Always use a wide bandage

Do not use:

Wire

Rope

A belt

Any material that may cut into skin and underlying tissue 34-30

Tourniquets Precautions

Do not remove or loosen the tourniquet unless directed to do so by a physician 34-31

Tourniquets Precautions

Be sure the tourniquet is in open view

Do not cover it with a bandage, a sheet, or the patient’s clothing 34-32

Tourniquets Precautions

Never apply a tourniquet directly over a joint

Place it as close to the injury as possible 34-33

Internal Bleeding 34-34

Hollow Abdominal Organs

Hollow abdominal organs:

Stomach

Intestines

Gallbladder

Urinary bladder

Hollow organ rupture:

Contents empty into the abdominal cavity

Causes irritation and pain 34-35

Solid Abdominal Organs

Solid abdominal organs:

Protected by bony structures

Bleed when injured

Can result in a large amount of blood loss

Examples:

Liver

Spleen

Kidneys 34-36

Internal Bleeding

Bleeding that occurs inside body tissues and cavities

Example: bruise

Capillary bleeding

Blood collects under the skin 34-37

Internal Bleeding

Most common causes of internal bleeding:

Injured or damaged internal organs

Fractures

• •

Femur Pelvis 34-38

Internal Bleeding

Sites where major bleeding is most likely to occur:

Abdominal cavity

Chest cavity

Digestive tract

Tissues surrounding broken bones 34-39

Internal Bleeding 34-40

Signs and Symptoms

• • • • • • • •

Pain, tenderness, swelling, or bruising in the injured area Weak, rapid pulse Pale, cool, moist skin Broken ribs or bruising on the chest Vomiting or coughing up bright red blood or dark, “coffee-ground” blood Tender, rigid, and/or swollen abdomen Bleeding from mouth, rectum, vagina, or other body opening Black (tarry) stools or stools with bright red blood 34-41

Emergency Care

• • • • • • •

Scene size-up, put on appropriate PPE Primary survey Vital signs, medical history Manage the ABCs, give oxygen if indicated, keep the patient warm Recovery position if no trauma Rapid transport to closest appropriate hospital Reassess at least every 5 minutes 34-42

Soft-Tissue Injuries 34-43

Soft-Tissue Injuries

• • • •

Injuries that damage the layers of the skin and the fat and muscle beneath them Open injury

Skin surface broken Closed injury

Skin surface intact Always wear PPE when dealing with soft tissue injuries 34-44

Closed Soft-Tissue Injury

• • •

Body is struck by a blunt object No break in the skin Tissues and vessels beneath skin surface are crushed or ruptured

Types

Contusion

Hematoma

Crush injury without a break in the skin 34-45

Contusion (Bruise)

• • • • • •

Most common type of closed wound Outer skin layer (epidermis) intact Small blood vessels in dermis are torn Bleeding occurs in the area that was struck Swelling, pain, and skin discoloration occur Most heal and disappear within 2 to 3 weeks 34-46

Hematoma

• • • •

Localized collection of blood beneath skin Larger blood vessels torn Often occur with trauma of enough force to break bones Larger amount of tissue damage than contusion 34-47

Crush Injury

• • •

May be open or closed Crushing force applied to body from blunt trauma Swelling and bruising often present

Severe crush injury

Extent of injury may be hidden

May see only minimal bruising, but force of injury may cause internal organ rupture

– –

Internal bleeding may be severe Can lead to shock 34-48

Closed Soft-Tissue Injuries 34-49

Compartment Syndrome 34-50

• • • • •

Compartment Syndrome Possible Causes Compression injury Strenuous exercise Circumferential burns Frostbite Constrictive bandages, splints

• • • • •

Animal / insect bites Bleeding disorders Arterial bleeding Soft-tissue injury Fracture 34-51

Compartment Syndrome 34-52

“ 5 P’s ” of Compartment Syndrome

P ain on passive stretching of the muscle

P aralysis (or weakness)

P aresthesias

Increased p ressure

Diminished peripheral p ulses 34-53

Crush Syndrome

Mine cave-ins

Trench collapse

Motor vehicle crash (MVC)

Landslide, avalanche, rockslide

Rubble from war, earthquake

Pinning under heavy objects

Severe beatings 34-54

Crush Syndrome

Consider when three criteria exist: 1. Involvement of a large amount of muscle 2. Compression of the muscle mass for a long period (usually 4 –6 hours, although it may be as little as 1 hour); and 3. Compromised local blood flow 34-55

Crush Syndrome

Blood flow compromised

Movement and sensation compromised

Damaged cells leak toxic substances into the bloodstream

Hypovolemic shock develops

Compartment syndrome develops

Reperfusion injury 34-56

• • • • •

Closed Wounds Management Scene size-up

Assess mechanism of injury

Put on appropriate PPE Primary survey

Stabilize cervical spine if needed

Treat for shock if signs of shock present or internal bleeding suspected Physical exam, vital signs, medical history Splint bone or joint injuries Extremity injury – rest, ice, elevate 34-57

Closed Wounds Management

If signs of compartment syndrome are present:

Do not apply ice or elevate the extremity

Splint the affected extremity for comfort and protection only when necessary 34-58

Closed Wounds Management

If the patient is trapped, try to find out how long the patient has been trapped

Contact medical direction for instructions 34-59

Open Wounds

Break occurs in the skin

Open wound at risk of:

External bleeding

Infection

Dressing the wound:

Helps protect against infection

Helps control bleeding 34-60

Open Soft-Tissue Injuries Types

Abrasions

Lacerations

Punctures

Avulsions

Amputations

Open crush injury 34-61

Abrasion

Outermost skin layer damaged by rubbing or scraping

Little or no bleeding

Infection primary concern 34-62

Laceration

Cut or tear

May occur by itself or with other soft-tissue injuries

Types

Linear (regular)

Stellate (irregular) 34-63

Laceration 34-64

Puncture Wound

Skin pierced with a sharp, pointed object

Increased risk of infection

May have little or no external bleeding

Internal bleeding may be severe 34-65

Puncture Wound

Severity depends on:

Location of injury

Depth of wound

Size of penetrating object

Forces involved in creating the injury 34-66

Impaled Object 34-67

Entrance / Exit Wounds

Gunshot and stab wounds are types of puncture wounds that can go completely through the body or body part

Creates an entrance and exit wound

Bullet entrance wound usually looks like a puncture wound

Exit wound is typically larger and more irregular

Carefully assess to find all wounds 34-68

Avulsion

• •

Piece of skin or tissue is torn loose or pulled completely off Bleeding varies with extent and depth of injury 34-69

Amputation

Separation of a body part from the rest of the body

34-year-old with a traumatic amputation caused by a gear

34-70

Open Crush Injury

• •

Broken bone ends may stick out through the skin Internal bleeding may be present

Can be severe enough to cause shock 34-71

Scene size-up Open Injuries Management

Primary survey

– – –

Stabilize cervical spine if needed Control bleeding, apply dressing Treat for shock if signs of shock present

Physical exam, vital signs, medical history

Splint bone or joint injuries 34-72

Special Considerations 34-73

Special Considerations Soft-tissue injuries that require special consideration:

Penetrating chest injuries

– – –

Eviscerations Impaled objects Amputations

– – – – –

Neck injuries Eye injuries Mouth injuries Ear injuries Nosebleeds 34-74

Penetrating (Open) Chest Injuries

A break in the skin over the chest wall

Severity depends on wound size

Sucking chest wound

Life-threatening injury

Can cause lung on injured side to collapse 34-75

Penetrating (Open) Chest Injuries

The front of this patient's chest showed visible bleeding but no obvious injury. When the patient’s back was assessed, multiple wounds were found.

Remember, the back is part of the chest. Never ever forget to check the back.

34-76

Penetrating (Open) Chest Injuries 34-77

Evisceration

• • • • • • •

Organ sticks out through an open wound Do not touch or try to replace exposed organ Remove clothing from around wound Lightly cover exposed organs / wound with a thick, moist dressing Secure dressing in place Position of comfort if no spinal injury Keep patient warm 34-78

Evisceration 34-79

Impaled Object

• • • • • •

Object remains embedded in an open wound Do not remove an impaled object

Exceptions:

• •

Interferes with CPR Object in cheek interferes with patient’s airway Secure object to prevent movement

Shorten only if necessary Control bleeding Stabilize object in place with bulky dressings Treat for shock if present 34-80

Amputation

• • • •

Control bleeding with direct pressure Put amputated part in a dry plastic bag or waterproof container

Seal bag or container

Place bag/container in water that has a few ice cubes Immobilize injured area Treat patient for shock 34-81

Amputation

DO NOT:

Use dry ice to keep an amputated part cool

Allow the amputated part to freeze

Place an amputated part directly on ice or in water 34-82

Open Neck Injury

The neck contains important blood vessels and airway structures

– – –

Swelling can cause an airway obstruction Penetrating injury can result in severe bleeding Risk of air being sucked into a torn blood vessel

• •

Air embolism Air can travel to heart, lungs, brain, or other organs

Air displaces blood and prevents tissue perfusion 34-83

Open Neck Injury

Possible causes of a neck injury include:

Hanging

Steering wheel impact

“Clothesline” injuries in which a person runs into a stretched wire or cord that strikes his throat

Knife or gunshot wounds 34-84

This patient is a 33-year-old man involved in a motor vehicle crash. He wore no seat belt and hit the windshield of the car he was driving. Despite the appearance of the injury, there were no injuries to the major blood vessels, trachea, or esophagus. The patient underwent surgery and was sent home 72 hours later.

34-85

Open Neck Injury 34-86

Eye Injuries

• •

Common injury Result of blunt and penetrating trauma

Signs of eye injury:

Swelling

Bleeding

Presence of a foreign object in the eye

Pain 34-87

Foreign Body in the Eye 34-88

Foreign Body in the Eye 34-89

Impaled Object in the Eye 34-90

Eye Chemical Burn

Most urgent eye injury

Damage depends on:

Type and concentration of the chemical

Length of exposure

Elapsed time until treatment 34-91

Early Signs of a Chemical Burn

Pain

Redness

Irritation

Tearing

Inability to keep eye open

A sensation of “something in my eye”

Swelling of the eyelids

Blurred vision 34-92

Chemical Burn to the Eye

Emergency care

Ask patient to remove contact lenses, if present

Immediately flush the eye with water or normal saline

Continue flushing for at least 20 minutes

Flush away from the unaffected eye 34-93

Mouth Injuries

Can result in airway obstruction

Signs and symptoms:

Tenderness

Bruising

Swelling 34-94

Jaw Fracture 34-95

Mouth Injuries Jaw Fracture Look in mouth for potential obstructions

Teeth, blood, vomitus

Suction as necessary

Look for broken or missing teeth

Preserve a knocked-out tooth

Control bleeding

Treat for shock if indicated 34-96

Ear Injuries

• •

Care for ear laceration as any other soft tissue injury Care for avulsed ear as for amputated part 34-97

Burns 34-98

Burn Types

Thermal (exposure to heat)

Examples: flame, scald, flash

Chemical

Examples: acids, alkalis

Electrical (including lightning)

Radiation 34-99

Burn Severity

• • • • • •

Depth Extent Location Patient age Conditions present before the burn Associated factors 34-100

Burn Depth

Superficial (first-degree) burn

Partial-thickness (second-degree) burn

Full-thickness (third degree) burn 34-101

Superficial (First-Degree) Burn

Involves only epidermis

Minor tissue damage

Skin red, tender, very painful

No blistering

Does not usually require medical care

Heals in ~2 to 5 days 34-102

Superficial (First-Degree) Burn 34-103

Partial-Thickness (Second-Degree) Burn

Extends through epidermis into dermis

Intense pain

Some swelling

Blistering may be present

Skin pink, red, or mottled

Heal in ~5 to 35 days 34-104

Partial-Thickness (Second-Degree) Burn 34-105

Full-Thickness (Third-Degree) Burn

Destroys epidermis, dermis

Skin color varies

Looks dry, waxy, or leathery

Numb – nerve endings destroyed

Rapid fluid loss 34-106

Full-Thickness (Third-Degree) Burn 34-107

Extent of Burn Key Points Only partial-thickness and full-thickness burns are included when calculating extent of a burn

Extent of the burned area is important to determine

The depth of the burn must also be considered, although superficial burns are not included in the calculation of the extent of a burn 34-108

Extent of Burn Rule of Nines “Rule of Nines”

Guide used to estimate body surface area burned

Divides adult body into 9%, or multiples of 9%, sections

Modified for children and infants 34-109

Extent of Burn Rule of Nines

Body Area Head and neck Front of trunk Back of trunk Each arm (shoulder to fingertips) Each leg (groin to toe) Genitals Adult 9% 18% 18% 9% Child 18% 18% 18% 9% Infant 18% 18% 18% 9% 18% 1% 13.5% 13.5% 1% 1%

34-110

Extent of Burn Rule of Nines 34-111

Extent of Burn Rule of Palms “Rule of Palms” can be used for:

Small or irregularly shaped burns

Burns scattered over the body

Palm of

patient’s

hand equals 1% of patient’s body surface area 34-112

Burns Best Treated in a Burn Center

• • • • • • • • •

Second-degree burns involving over 10% total body surface area (TBSA) in adults or 5% TBSA in children Chemical burns All burns involving hands, face, eyes, ears, feet, or genitals Circumferential burns of the torso or extremities Any third-degree burn in a child All inhalation injuries Electrical burns, including lightning injury All burns complicated by fractures or other trauma All burns in high-risk patients including older adults, the very young, and those with preexisting conditions such as diabetes, asthma, and epilepsy 34-113

Care for Thermal Burns

• • •

If patient still in area of heat source, move to safe area If clothing is in flames – stop, drop, and roll Remove smoldering clothing and jewelry

Cut around areas where clothing is stuck to skin 34-114

Primary Survey

Stabilize cervical spine if needed

Was the patient in a confined space and exposed to smoke, flames, or steam?

– – –

How long was he exposed?

Did he lose consciousness?

Were hazardous chemicals involved?

Be alert for potential airway problems 34-115

Inhalation Injury

• • • • • • •

Facial burns Soot in the nose or mouth Singed facial or nasal hair Swelling of lips or inside mouth Coughing Inability to swallow secretions Hoarse voice 34-116

Physical Examination

Check pulses in all extremities

Circumferential burn can act as a tourniquet

After all immediate life-threats have been managed, care for the burn itself 34-117

Physical Examination

• • • •

Quickly determine burn severity Vital signs Medical history Questions related to the burn:

How long ago did the burn occur?

How did it occur?

What was done to treat the burn before you arrived?

34-118

Treat the Burn

• • • • • • •

Cool the burn with cold water Cover burned area with a dry dressing or sheet Keep patient warm

Cover with clean, dry sheets Remove all jewelry Look for other injuries

Treat and immobilize possible fractures

– –

Treat soft-tissue injuries if present Treat shock if present Keep burned extremities elevated above the heart Transport to closest appropriate facility 34-119

Treat the Burn

Do not apply ice, butter, oils, sprays, lotions, or ointments to a burn

If a blister has formed, do not break it

Loosely cover the blister with a sterile dressing

Do not place ice or wet sheets on a burn

Do not transport a burn patient on wet sheets, wet towels, or wet clothing 34-120

Infant / Child Considerations

• • • •

Larger BSA than adults in relation to total body size

Greater fluid and heat loss More likely to develop shock or airway problems than adults Consider possibility of abuse when treating a burned child Report all suspected cases of abuse to appropriate authorities 34-121

Infant / Child Considerations 34-122

Older Adult Considerations

• – – – – – –

Mechanisms and severity of burn injury related to: Living alone Wearing loose-fitting clothing while cooking Falling asleep while smoking Declining vision, hearing, and sense of smell Slowed reaction time Problems with balance and/or memory 34-123

Chemical Burns

Degree of injury is based on:

Mechanism of action of the chemical

– – –

Strength of the chemical Concentration and amount of the chemical How long the patient was in contact with the chemical

– –

Body part in contact with the chemical Extent of tissue penetration 34-124

Care for Chemical Burns

Scene size-up

Gloves, eye protection, other PPE as necessary

Additional resources may be needed before you can safely enter the area 34-125

Care for Chemical Burns

General impression / primary survey

Manage airway and breathing

Stabilize cervical spine if needed

Remove patient’s jewelry

Remove clothing, including shoes and socks 34-126

Care for Chemical Burns

• •

Stop the burning process

Brush off dry chemicals

Brush chemical away from the patient

Flush the burn with

large

amounts of room temperature water

• •

Use low pressure Flush for

at least

20 minutes Treat other injuries, if present 34-127

Electrical Burns

• – – – – – –

Severity of an electrical injury is related to: Amperage (current flow) Voltage (current force) Type of current (AC/DC) Current pathway through the body Resistance of tissues to current Duration of contact 34-128

Electrical Burns

Skin normally resists the flow of electric current into the body

Electricity entering the body is converted to heat

Current follows paths of least resistance

Blood vessels, nerves, muscles 34-129

Care for Electrical Burns

• •

Make sure the power is off!

Contact additional resources if needed before entering the area 34-130

Care for Electrical Burns

Manage ABCs

Stabilize cervical spine if needed

• –

Watch closely for respiratory and cardiac arrest Make sure an AED is available 34-131

Care for Electrical Burns

• •

Treat other injuries if present Look for entrance and exit wounds 34-132

Dressing and Bandaging 34-133

Dressing and Bandaging

Dressing

Absorbent material placed directly over a wound

Bandage

Used to secure a dressing in place 34-134

Dressing and Bandaging

Functions of dressing and bandaging wounds:

Help stop bleeding

Absorb blood and other drainage from the wound

Protect wound from further injury

Reduce contamination and risk of infection 34-135

Dressings

A dressing should be:

Lint free

Large enough to cover the wound

Should extend beyond wound edges

Sterile whenever possible

Applied directly over the wound

Do not slide it in place 34-136

Types of Dressings 34-137

Sterile Gauze Pads

Loosely woven material

Classified by size in inches

2 x 2

4 x 4 34-138

Trauma Dressing

• • • •

Thick dressing Various sizes Two layers of gauze with absorbent cotton in center Uses

Large wounds

Pad injured limb inside a splint 34-139

Occlusive Dressing

• •

Made of nonporous material Used to cover open wound and make airtight seal

Chest wound

Neck wound 34-140

Nonadherent Pads

• •

Gauze pads with special coating Used to cover leaking open wound but not stick to it 34-141

Eye Pads

Uses:

Cover eyes after minor eye injury

Cover small wound, such as a puncture 34-142

Bandages 34-143

Bandages

Applied to keep a dressing in place

Does not have to be sterile

Before applying to an extremity:

Remove patient’s jewelry

Check pulse distal to the wound 34-144

Roller Gauze (Kling)

• – –

Secures dressing in place 1-inch roll for fingers 2-inch roll for wrists, hands, feet

– –

3-inch roll for elbows, upper arms 4- to 6-inch roll for ankles, knees, legs 34-145

Roller Bandage

• •

Soft, slightly elastic material Available in various widths 34-146

Elastic Bandage

• •

Do not use to secure a dressing in place May act as a tourniquet if injured area swells 34-147

Triangular Bandage

• •

Large piece of muslin When folded, can be used as a bandage or sling 34-148

Self-Adherent Wrap

• •

Elastic wrap coated with self-adhering material Often used as a pressure bandage 34-149

Pressure Bandage

• • • • •

Applied over a wound site to control bleeding Cover the wound with a dressing Apply direct pressure until the bleeding is controlled Secure the dressing in place with a bandage Assess the pulse distal to a bandage 34-150

Applying a Roller Bandage 34-151

Applying a Roller Bandage 34-152

Applying a Roller Bandage 34-153

Applying a Roller Bandage 34-154

Head or Ear Bandage 34-155

Upper Arm Bandage 34-156

Elbow Bandage 34-157

Wrist or Forearm Bandage 34-158

Knee Bandage 34-159

Foot or Ankle Bandage 34-160

34-161