answers with solutions
Barbituates - ANSWER Four main categories:
1. Ultra-short-acting - used to induce surgical anesthesia
2. Short-acting
3. Intermediate-acting - used as sedative-hypnotics
4. Long-acting
Butalbital - ANSWER Barbituate. Used in treatment of migraines.
Phenobarbital - ANSWER Barbituate. Used as anticonvulsant.
Pentobarbital - ANSWER Barbituate. Used to relieve intracranial pressure
following trauma.
Atropine - ANSWER Belladonna Alkaloid. Derived from certain plants
including jimson weed and deadly nightshade. Used as a preanesthetic
therapy to control airway secretions and as a antispasmodic to control
gastrointestinal spasms. Used as an antidote in the treatment of
poisoning by cholinesterase inhibitors. Also used in resuscitative
attempts.
,Toxic effects: mydriasis, hot dry reddened skin, delirium, and
hallucinations.
Scopalamine - ANSWER Belladonna Alkaloid. Derived from jimson weed
and henbane. Used as a preanesthetic, treatment of Parkinsonism,
gastrointestinal disorders, and prevention of motion sickness.
Toxic effects: Blurred vision, dryness of throat, dilated pupils,
somnolence, mydriasis, skin flushing, hallucinations, and confusion.
Benzodiazepines - ANSWER Belladonna Alkaloid. Used as anxiolytics,
antidepressants, anticonvulsants, and as preoperative sedatives.
Common benzos: alprazolam, lorazepam, clonazepam, and diazepam.
Extensive hepatic metabolism.
Adult flies caught at the scene need to be properly stored to send to the
lab. This involves - ANSWER placing the flies in a glass vial containing
70% isopropyl alcohol.
Forensic scientists may use forensic entomology for all the following
EXCEPT
A. estimate the duration of the post-mortem range (PMI).
B. detect drugs of abuse in maggot infested bodies.
C. detect the location of the body at the time of death.
D. collect DNA material left on the corpse in cases of sexual assault.
E. detect volatile hydrocarbons in fire deaths. - ANSWER detect volatile
hydrocarbons in fire deaths.
, Which of the following methods is the LEAST sensitive chromatographic
technique
A. High-pressure liquid chromatograph (HPLC)
B. Liquid chromatography / Mass Spectrometry
C. Thin-layer chromatography
D. Gas chromatography / Mass Spectrometry
E. Gas chromatography - ANSWER Thin-layer chromatography
Which ONE of the following drugs is responsible for the most intentional
overdose fatalities?
A. Barbiturates
B. Propoxyphene
C. Benzodiazepines
D. Tricyclic Antidepressants
E. Antihistamines - ANSWER Tricyclic Antidepressants
In scenes illuminated by bright sunlight, there will usually be dark
shadow areas. Detail in the deep shadow areas will be lost when the
exposure is based on the overall brightness of the scene. The brightness
level in the shadow areas can be raised to the overall brightness of the
scene by using
A. an alternate light source
B. ultraviolet fluorescence.
C. flash-fill photography.