DRE VOCAB| QUESTIONS AND ANSWERS 2025/2026 LATEST UPDATE 100% SOLVED
Phencyclidine A contraction of PHENYL CYCLOHEXYL PIPERIDINE, or PCP. Formerly used as a
surgical anesthetic, however, it has no current legitimate medical use in humans.
Phenyl Cyclohexyl Piperidine (PCP) Often called "phencyclidine" or "PCP", it is a specific drug
belonging to the Dissociative Anesthetics category.
Physician's Desk Reference (PDR) A basic reference source for drug recognition experts. The
PDR provides detailed information on the physical appearance and psychoactive effects of licitly
manufactured drugs.
Physiology The branch of biology that deals with the functions and activities of life or living
matter and the physical and chemical phenomena involved.
Piloerections Literally, "hair standing up", or goose bumps. This condition of the skin is often
observed in persons who are under the influence of LSD.
Polycategory Impairment Being under the combined influence of drugs from two or more
drug categories.
Psychedelic A mental state characterized by a profound sense of intensified or altered
sensory perception sometimes accompanied by hallucinations.
,Psychophysical Tests Methods of investigating the mental (psycho-) and physical
characteristics of a person suspected of alcohol or drug impairment. Most psychophysical tests
employ the concept of divided attention to assess a suspect's impairment.
Psychotogenic Literally "creating psychosis", or "giving birth to insanity", A drug is
considered to be psychotogenic if persons who are under the influence of a drug become
insane and remain so after the drug wears off.
Psychotomimetic Literally, "mimicking psychosis" or "impersonating insanity". A drug is
considered to be psychotomimetic if persons who are under the influence of the drug look and
act insane while they are under the influence.
Ptosis Droopy eyelids
Pulse The rhythmic dilation and relaxation of an artery that results from the beating of the
heart
Pulse Rate The number of expansions of an artery per minute
Pupillary Light Reflex The pupils of the eyes will constrict and dilate depending on changes in
lighting.
, Pupillary Unrest The continuous, irregular change in the size of the pupils that may be
observed under the room or stead light conditions.
Rebound Dilation A period of pupillary constriction followed by a period pupillary dilation
where the pupil steadily increases in size and the range between minimum and maximum is
equal to or greater than 1mm and does not return to its original constricted size
Resting Nystagmus Jerking of the eyes as they look straight ahead
Sclera A dense white fibrous membrane that, with the cornea, forms the external covering
of the eyeball (i.e. the white part of they eye).
Sensory nerves Nerves that carry messages to the brain, from the various parts of the body,
including notably the sense organs (eyes, ears, etc.). Sensory nerves are also known as afferent
nerves.
Sinsemilla The unpollinated female cannabis plant, with a relatively high concentration of
THC.
Snorting (See insufflation) One method of administering certain drugs. Snorting requires
that the drug be in powdered form. The user rapidly draws the drug up the nostril, usually via a
paper or glass tube. Snorting is also known as insufflation.
Phencyclidine A contraction of PHENYL CYCLOHEXYL PIPERIDINE, or PCP. Formerly used as a
surgical anesthetic, however, it has no current legitimate medical use in humans.
Phenyl Cyclohexyl Piperidine (PCP) Often called "phencyclidine" or "PCP", it is a specific drug
belonging to the Dissociative Anesthetics category.
Physician's Desk Reference (PDR) A basic reference source for drug recognition experts. The
PDR provides detailed information on the physical appearance and psychoactive effects of licitly
manufactured drugs.
Physiology The branch of biology that deals with the functions and activities of life or living
matter and the physical and chemical phenomena involved.
Piloerections Literally, "hair standing up", or goose bumps. This condition of the skin is often
observed in persons who are under the influence of LSD.
Polycategory Impairment Being under the combined influence of drugs from two or more
drug categories.
Psychedelic A mental state characterized by a profound sense of intensified or altered
sensory perception sometimes accompanied by hallucinations.
,Psychophysical Tests Methods of investigating the mental (psycho-) and physical
characteristics of a person suspected of alcohol or drug impairment. Most psychophysical tests
employ the concept of divided attention to assess a suspect's impairment.
Psychotogenic Literally "creating psychosis", or "giving birth to insanity", A drug is
considered to be psychotogenic if persons who are under the influence of a drug become
insane and remain so after the drug wears off.
Psychotomimetic Literally, "mimicking psychosis" or "impersonating insanity". A drug is
considered to be psychotomimetic if persons who are under the influence of the drug look and
act insane while they are under the influence.
Ptosis Droopy eyelids
Pulse The rhythmic dilation and relaxation of an artery that results from the beating of the
heart
Pulse Rate The number of expansions of an artery per minute
Pupillary Light Reflex The pupils of the eyes will constrict and dilate depending on changes in
lighting.
, Pupillary Unrest The continuous, irregular change in the size of the pupils that may be
observed under the room or stead light conditions.
Rebound Dilation A period of pupillary constriction followed by a period pupillary dilation
where the pupil steadily increases in size and the range between minimum and maximum is
equal to or greater than 1mm and does not return to its original constricted size
Resting Nystagmus Jerking of the eyes as they look straight ahead
Sclera A dense white fibrous membrane that, with the cornea, forms the external covering
of the eyeball (i.e. the white part of they eye).
Sensory nerves Nerves that carry messages to the brain, from the various parts of the body,
including notably the sense organs (eyes, ears, etc.). Sensory nerves are also known as afferent
nerves.
Sinsemilla The unpollinated female cannabis plant, with a relatively high concentration of
THC.
Snorting (See insufflation) One method of administering certain drugs. Snorting requires
that the drug be in powdered form. The user rapidly draws the drug up the nostril, usually via a
paper or glass tube. Snorting is also known as insufflation.
