Laceration

Laceration

Q. 1 Pus formation in lacerated wound occurs in:
 A 12-24 hours
 B 24-48 hours
 C 48-72 hours
 D 1 week
Q. 1 Pus formation in lacerated wound occurs in:
 A 12-24 hours
 B 24-48 hours
 C 48-72 hours
 D 1 week
Ans. B

Explanation:

Normally, pus formation occurs in about 48 hours, but in a lacerated wound it occurs slightly earlier.


Q. 2 “Lacerated” wound has:
 A Clean cut borders
 B Regular margin
 C Irregular margin
 D Tapered margin
Q. 2 “Lacerated” wound has:
 A Clean cut borders
 B Regular margin
 C Irregular margin
 D Tapered margin
Ans. C

Explanation:

Irregular margin


Q. 3 “Split” laceration is seen in:
 A Blunt tangential impact
 B Blunt perpendicular impact
 C Horizontal crushing
 D Impact by sharp objects
Q. 3 “Split” laceration is seen in:
 A Blunt tangential impact
 B Blunt perpendicular impact
 C Horizontal crushing
 D Impact by sharp objects
Ans. B

Explanation:

Blunt perpendicular impact

Quiz In Between


Q. 4

What is the characteristic of a lacerated wound over bony surface due to blunt trauma without excessive skin crushing?

 A

Irregular margins

 B

Regular sharp margins

 C

Tearing

 D

Flaying

Q. 4

What is the characteristic of a lacerated wound over bony surface due to blunt trauma without excessive skin crushing?

 A

Irregular margins

 B

Regular sharp margins

 C

Tearing

 D

Flaying

Ans. B

Explanation:

  • Blunt force on areas where the skin is close to bone, and the subcutaneous tissues are scanty, may produce a wound which by linear splitting of the tissues, may look like incised wound.
  • Lacerations produced without excessive skin crushing may have relatively regular sharp margins.
 
Ref: The Essentials of Forensic Medicine and Toxicology by Dr. K. S. Narayan Reddy, 27th edition, Page 166.

Q. 5

Which of the following is a feature of a lacerated wound?

 A

Clean cut wound

 B

Regular margin

 C

Irregular margin

 D

Tapered margins

Q. 5

Which of the following is a feature of a lacerated wound?

 A

Clean cut wound

 B

Regular margin

 C

Irregular margin

 D

Tapered margins

Ans. C

Explanation:

Features of lacerated wound:

  • Margins are irregular, ragged and uneven and their ends are pointed or blunt
  • Bruising is seen either in the skin or subcutaneous tissue around the wound
  • Deeper tissues are unevenly divided with tags of tissue at the bottom of wound bridging across the margin
  • Hair bulbs are crushed
  • Hair and epidermal tags may be driven deeply into the wound
  • Less hemorrhage
  • Presence of foreign matter in the wound
  • Shape and size of the wound does not correspond to the weapon used

Q. 6

Open wound is a :

 A

Contussion

 B

Abrasion

 C

Laceretion

 D

Concussion

Q. 6

Open wound is a :

 A

Contussion

 B

Abrasion

 C

Laceretion

 D

Concussion

Ans. C

Explanation:

C i.e. Laceration

Quiz In Between


Q. 7

Tearing of the skin and subcutaneous tissue is called:

 A

Abrasion

 B

Laceration

 C

Contussion

 D

Avulsion

Q. 7

Tearing of the skin and subcutaneous tissue is called:

 A

Abrasion

 B

Laceration

 C

Contussion

 D

Avulsion

Ans. B

Explanation:

B i.e. Laceration


Q. 8

In a lacerated wound the hair bulb is:

 A

Cut

 B

Crushed

 C

Both of the above

 D

Lacerated

Q. 8

In a lacerated wound the hair bulb is:

 A

Cut

 B

Crushed

 C

Both of the above

 D

Lacerated

Ans. B

Explanation:

Lacerated


Q. 9

Lacerated wound appears as incised wound in which of the following sites:

 A

Scalp

 B

Tibial shin

 C

Anterior abodominal wall

 D

a and b

Q. 9

Lacerated wound appears as incised wound in which of the following sites:

 A

Scalp

 B

Tibial shin

 C

Anterior abodominal wall

 D

a and b

Ans. D

Explanation:

A i.e. Scalp; B i.e. Tibial shin

Quiz In Between


Q. 10

Lacerated wound looks like incised wound over:

 A

Scalp

 B

Abdomen

 C

Thigh

 D

Forearm

Q. 10

Lacerated wound looks like incised wound over:

 A

Scalp

 B

Abdomen

 C

Thigh

 D

Forearm

Ans. A

Explanation:

A i.e. Scalp


Q. 11

Split lacerations are due to:          

DNB 09

 A

Blunt object

 B

Sharp object

 C

Sharp heavy object

 D

Pointed object

Q. 11

Split lacerations are due to:          

DNB 09

 A

Blunt object

 B

Sharp object

 C

Sharp heavy object

 D

Pointed object

Ans. A

Explanation:

Ans. Blunt object


Q. 12

Split laceration resembles:           

Jharkhand 11

 A

Incised wound

 B

Abrasion

 C

Gunshot wound

 D

Contusion

Q. 12

Split laceration resembles:           

Jharkhand 11

 A

Incised wound

 B

Abrasion

 C

Gunshot wound

 D

Contusion

Ans. A

Explanation:

Ans. Incised wound

Quiz In Between


Q. 13

Incised looking laceration is seen in all, except

AFMC 11; NEET 13

 A

Iliac crest

 B

Zygomatic bone

 C

Shin

 D

Chest

Q. 13

Incised looking laceration is seen in all, except

AFMC 11; NEET 13

 A

Iliac crest

 B

Zygomatic bone

 C

Shin

 D

Chest

Ans. D

Explanation:

Ans. Chest


Q. 14

Flaying is seen in which type of lacerated wound:

AIIMS 11

 A

Split

 B

Stretch

 C

Avulsion

 D

Cut

Q. 14

Flaying is seen in which type of lacerated wound:

AIIMS 11

 A

Split

 B

Stretch

 C

Avulsion

 D

Cut

Ans. C

Explanation:

Ans. Avulsion


Q. 15

Tissue bridges are seen in:          

DNB 10

 A

Abrasion

 B

Contusion

 C

Laceration

 D

Stab wound

Q. 15

Tissue bridges are seen in:          

DNB 10

 A

Abrasion

 B

Contusion

 C

Laceration

 D

Stab wound

Ans. C

Explanation:

Ans., Laceration


Q. 16

Incised looking laceration is seen at ‑

 A

Forehead

 B

Hand

 C

Thorax

 D

Abdomen

Q. 16

Incised looking laceration is seen at ‑

 A

Forehead

 B

Hand

 C

Thorax

 D

Abdomen

Ans. A

Explanation:

Ans. is ‘a’ i.e., Forehead

LACERATIONS (Tear or Rupture)

Lacerations are tears or splits of skin, mucous membrane and underlying tissue (e.g., muscle or internal organs). Lacerations are produced by application of blunt force to broad area of the body, which crush or stretch tissues beyond the limits of their elasticity. Localized portions of tissue are displaced by the impact of the blunt force, which sets up traction forces and causes tearing of tissues.

Features of lacerations are :‑

i) Hair and hair bulb, nerves and blood vessels are crushed → There may be paralysis (nerve crushed) and hemorrhage is not pronounced (blood vessels crushed).

ii) Site of injury is the site of impact.

iii) Shape of injury is irregular, margins are irregular and contused/abraded and show tags of tissue.

iv) Size of injury does not corresponds to impacting surface.

There are following types of laceration : ‑

1) Split laceration : Splitting occurs by crushing of skin between two hard objects. Blunt force on areas where the skin is close to rigid structures like bone with scanty subcutaneous tissue, may produce a wound that by linear splitting of tissue may look like incised wound, i.e., incised like or incised looking wound. Examples of such area are scalp, eye brows, cheek bones (zygomatic), lower jaw, iliac crest, perineum and skin. A wound produced by a fall on knee or elbow with limb flexed and by a sharp stone also simulates incised wound.

2) Strech lacerations : Overstretching of the skin, if it is fixed, will cause laceration, for example, by kicking, sudden deformity of bone occurs after fracture, making it compound.

3) Avulsion (shearing laceration) : An avulsion is a laceration produced by sufficient force (shearing force) delivered at an acute angle to detach (tear off) a portion of a traumatized surface or viscus from its attachment, the shearing and grinding force by a weight. Flaying is type of avulsion in which shearing and grinding force by weight (such as of lorry wheel passing over a limb) may produce avulsion (separation of skin from underlying tissue/degloving of a large area).

4) ears : Tears of the skin and tissues can occur from imact by a against irregular or semi-sharp objects, such as door handle of a car. This is another form of overstretching.

5) Cut laceration : Cut lacerations may be produced by a heavy sharp edged instrument.

Quiz In Between



Leave a Reply

%d bloggers like this:
Malcare WordPress Security