Forensic medicine

six penny bruise

non accidental

multiple fractures

a sign of child abuse.

retinal hemorrhage

how is artificial bruise different?

VESICLES AND PRURITUS PRESENT.

COLOUR CHANGE ABSENT.

what is contusion and how to tell its age?

INTERNAL ORGAN BLEED

initial few hr-3d 4th-day 5-6d 7-12d 2WEEKS

Red(oxy hb) VI(blue-de oxyhb) Brown Green(biliverdin) Yellow(bilirubin) Original

Wounds over bony prominence?

Incised looking lacerted wounds(less amount of fat over the bone)

Opposite is also true.

Lightning burns also called as?

Filligree,arborization,lichenburg flowers

Type of burn due to HIGH VOLTAGE ELECTRICAL INJURY IS?

What is most dangerous type of current?

most important factror for death is?

mcc of death is?

CROCODILE BURNS

ALTERNATING

AMPERAGE OF THE CURRENT

ARRYTHMIAS

Ulcers and their possible reasons-

wishnevsky-

curling-

cushing-

cameron-

HYPOTHERMIA

BURNS(BURN DUE TO CURLER)

HEAD INJURY(SOUNDS LIKE CRUSHING)

SLIDING HERNIA

Heat cramps vs heat exhaution vs heat stroke-define.

ELECTROLYTE LOSS ONLY VS ELECTROLYTE AND FLUID LOSS(dehydration) VS CORE TEMP>40.5+HEAT STRESSOR+NEUROLOGICAL DYS.

SWEATING+(exertional); SWEATING-NT(classical).

define-primary vs secondary vs tertiary blast injury.

PRIMARY is direct impact-TM(mc)>LUNGS>COLON=HOLLOW ORGANS.

SECONDARY is SHARPNELLS-MARSHALL TRIAD-ABRASION,CONTUSION,LACERATION.

TERTIARY is HEAD,CERVICAL SPINE FRACTURES

match the following-

rifle,choking,bullet,pellet,rifling

RIFLE-RIFLING,BULLETS

SHOTGUN-CHOKING,PELLET

Markings on a bullet-

Primary marking-

Secondary-

MANUFACTURER

INDIVIDUAL GUN

How to collect and test Gunshot residue-

PARAFFIN WAX.

DERMAL NITRATE TEST AND SCANNING EM-EDXA(best)

Primers used-

Barium nitrite

Lead peroxde

Antimony Sulfide

Tetracene

Features based on the distance of the shot.

BB T GREASE COLLAR ABRASION COLLAR

CONTACT- Y(inside the wound) Y Y Y

CLOSE- Y(outside) Y Y Y

NEAR/INT.- N Y Y Y

DISTANT- N N N N