Case Analysis & Practical Application Flashcards

A forensic pathologist examining a decedent with known hypertensive cardiovascular disease finds pulmonary edema, left ventricular hypertrophy, and moderate coronary artery disease (40–50% stenosis). The death certificate should list the cause of death as:

Answer: Hypertensive cardiovascular disease

When coronary stenosis is insufficient to cause acute ischemia but hypertensive cardiomyopathy with its complications is present, hypertensive cardiovascular disease is the appropriate cause of death.

A forensic examiner reviews a case where a defendant claims self-defense after shooting an assailant. Autopsy reveals the bullet entered the back at a downward angle. Which conclusion is most supportable?

Answer: Back wounds are compatible with self-defense if the victim was turning

A posterior entry wound does not categorically exclude self-defense, as victims may be turning, falling, or moving at the time of the shot, requiring full scene reconstruction.

In a suspected elder abuse fatality, an 82-year-old nursing home resident has multiple sacral pressure ulcers, severe dehydration, and wasting. Which finding would most elevate this from neglect to criminal homicide?

Answer: Documentation showing staff were aware of deteriorating condition and took no action

Documented awareness of deteriorating condition without remedial action demonstrates willful neglect, elevating the case from negligence to potential criminal culpable homicide.

A court asks a forensic medicine expert to opine on whether a defendant was legally insane at the time of a violent crime. The expert's role in this context is to:

Answer: Provide a clinical opinion on the defendant's mental state and its relationship to behavior

The forensic expert provides a clinical opinion on mental state and its relationship to behavior; the ultimate legal determination of insanity is made by the court, not the clinician.

A 45-year-old found dead in a hotel room has a fentanyl patch applied to the skin. Autopsy toxicology shows fentanyl blood level of 22 ng/mL. Which contextual finding would most support that this represents a therapeutic rather than toxic dose?

Answer: Documented history of chronic opioid use and high tolerance

Documented opioid tolerance from chronic use raises the lethal threshold dramatically, making levels that would be fatal in opioid-naive individuals potentially therapeutic in tolerant users.

Forensic investigators are examining a suspected poisoning death where arsenic is suspected. Which specimen provides the most accurate long-term timeline of arsenic exposure?

Answer: Segmental hair analysis

Segmental hair analysis allows reconstruction of arsenic exposure over weeks to months based on the known growth rate of approximately 1 cm/month, providing a chronological timeline.

A woman is brought to the emergency department after alleged intimate partner violence. She has patterned bruising on her arms consistent with grip marks. The forensic examiner should document this as:

Answer: Injuries consistent with but not diagnostic of intimate partner violence

Patterned bruising is 'consistent with' a mechanism but forensic documentation must use appropriate qualifying language since the examiner cannot determine causation from physical findings alone.