Arizona Horizontal Gaze Nystagmus (HGN) Practice Test

These questions are part of the practice quiz. Start practicing

• What does maximum deviation refer to in the context of HGN?
• What should be the officer's approach if they observe suspicious driving behavior?
• True or false: Most alcohol is absorbed into the bloodstream through the stomach.
• What effect can holding a gaze for insufficient time at maximum deviation have?
• What is a major task in phase two of DWI evidence gathering?
• Which of the following is a critical factor in interpreting HGN results accurately?
• Which of the following is a describable clue an officer might see during an interview?
• How does HGN testing fit into the overall DUI investigation process?
• Which of the following is NOT one of the three techniques an officer might use in asking questions for divided attention tasks?
• What are the potential implications for a driver who fails the HGN test?
• Which of the following may indicate drug use during a DWI encounter?
• Alcohol primarily impairs the ability to perform which of the following tasks?
• In the context of HGN testing, what is a potential outcome of environmental distractions?
• What is the primary effect of alcohol consumption on coordination?
• If a subject displays nystagmus at 45 degrees, what is implied about their level of impairment?
• What precaution should be taken regarding the administration of the HGN test?
• What should an officer do before starting an HGN test?
• What is the first clue observed in the HGN test?
• What role does training play in HGN testing for officers?
• Which behavior may indicate a possible alcohol impairment during the HGN test?
• What are the two stages of the One-Leg Stand (OLS) test?
• What does the acronym "HGN" stand for?
• What is one limitation of using HGN testing as a sole indicator of impairment?
• What role does the central nervous system play in HGN testing outcomes?
• Which process is used to create high concentration beverage alcohol?
• What does a strong indicator of impairment in the HGN test suggest about the subject's BAC?
• True or false: It takes about 30 minutes for the average 175-pound man to "burn off" the alcohol in one 12-ounce can of beer.
• What is meant by "distinct and sustained nystagmus"?
• The legal BAC limit for driving in most states is:
• What is the primary purpose of the HGN test?
• What factor can lead to inaccurate HGN test results?
• What are the two stages of the Walk-and-Turn (WAT) test?
• If an individual shows all six clues during the HGN test, what does it suggest?
• How many clues are produced in the one leg stand test when a subject balances with arms, hops, or puts a foot down?
• How many total clues can officers identify from the HGN test?
• How should officers handle situations where a driver is uncooperative during a DWI investigation?
• According to the San Diego study, what percentage of the time can the Walk and Turn test determine a BAC above 0.08?
• What type of eye movement characterizes Horizontal Gaze Nystagmus?
• Which of the following is NOT a task in the phase one assessment of DWI?
• What are the two major evidence gathering tasks during Phase Three of a DWI detection?
• What is the name of the muscle that controls the passage from the stomach to the lower gastrointestinal tract?
• Which of the following is NOT a result of failing an HGN test?
• What are the three phases in a typical DWI contact?
• What can hinder the effectiveness of the HGN test?
• What is the maximum number of clues for HGN that can appear in one eye?
• The DWI detection process culminates in what significant decision?
• Why is sensory evidence critical during a DWI investigation?
• Once a person reaches his or her peak BAC, it will drop at a rate of about how much per hour?
• What should officers do if they observe the subject’s eyes moving smoothly during the HGN test?
• How is body posture relevant during the HGN test?
• Which clue indicates the inability of a subject to follow a moving stimulus smoothly in the HGN test?
• What role does practice and training play in administering the HGN test?
• True or false: Alcohol can pass directly through the stomach walls and enter the bloodstream.
• What role does calibration play in the HGN testing process?
• What does "gaze nystagmus" refer to?
• Which of the following clues relates to the ability to follow a stimulus smoothly?
• What is the major decision that must be made in Phase Three of DWI detection?
• Can medical conditions affect the results of the HGN test?
• Why is it important for the officer to keep the stimulus at eye level during the HGN test?
• What should an officer focus on when assessing a subject's balance during a sobriety test?
• What aspect of the subject is assessed during the One Leg Stand test?
• Divided attention tests require the subject to do what?
• Which other tests are commonly administered alongside HGN?
• What is the degree threshold prior to which nystagmus onset is considered a clue in the HGN test?
• Why is it essential for officers to remain focused during the HGN test?
• Which of the following is a sign of impairment when conducting HGN testing?
• How can the presence of multiple substances affect the HGN response?
• What are the options an officer has at each phase of detection?
• Which of the following is NOT one of the mental and physical capabilities needed for safe driving?
• What is the average water percentage in the body of men?
• How do weather conditions influence the HGN test?
• In which phase is the decision to arrest typically made?
• What is Horizontal Gaze Nystagmus (HGN)?
• What can vertical nystagmus signify in a HGN test?
• In the Walk and Turn (WAT) test, what type of surface is required for the test?
• In Phase One, what is the primary task of the officer?
• What behavior is observed when a subject leans against the vehicle during a DWI stop?
• What additional factors should be evaluated alongside HGN results?
• What is the purpose of administering the HGN test?
• According to the San Diego study, what percentage of the time can the HGN test determine if a subject's BAC is above 0.08?
• In the context of HGN, what does "smooth pursuit" refer to?
• Which of the following is a clue suggesting DWI during the stopping sequence?
• Which capability is important for decision-making while driving?
• What skill is primarily tested during the Walk and Turn test?
• How long should a subject's gaze be held at maximum deviation during the HGN test?
• Which of the following conditions may NOT impact HGN results?
• What is a common challenge that officers face when gathering evidence in DWI cases?
• Why is HGN testing specific to alcohol impairment as opposed to other substances?
• What is primarily observed for evidence of DWI?
• What common error can affect the validity of a PBT?
• What physiological factors contribute to nystagmus during intoxication?
• What is essential for a thorough interpretation of HGN test results?
• Why is it important to maintain a sufficient distance between the officer and the subject during the test?
• During the One Leg Stand (OLS) test, what must the subject do while standing on one foot?
• What is the primary purpose of conducting HGN tests during a sobriety check?
• In what setting is the HGN test usually administered?
• True or false: On average, women contain more water than men by weight.
• During the HGN test, what tool does the officer typically use as a stimulus?
• For the Per Se offense, the chemical test result is considered __________ evidence.
• What type of alcohol is primarily intended for human consumption?
• How can perception of time affect HGN results?
• How does alcohol consumption affect the eye's ability to exhibit HGN?
• During a DWI investigation, what is a typical expectation of the officer regarding observation?
• What is an important aspect of minimizing errors during the HGN test?
• If DWI is a criminal offense, the standard of proof is ____________.
• Why is it important to evaluate the onset of nystagmus at a specific angle?
• What is the purpose of implied consent?
• What should an officer do if they observe multiple clues of impairment during HGN testing?
• What significance does an officer's experience hold in interpreting HGN results?
• What percentage of the time does the one leg stand test correctly predict if a subject has a BAC above 0.08?
• How does the time of day affect HGN test results?
• What eye movement characteristic is essential to note during the HGN test?
• How many times should the officer check each eye during the HGN test?
• Why might an officer choose to consult with a supervisor after administering the HGN test?
• Which of the following does NOT influence the accuracy of HGN test results?
• For how many seconds must a subject hold their foot raised during the OLS test?
• What is the primary purpose of the Preliminary Breath Test (PBT)?
• Which of the following is NOT a clue officers look for during the HGN test?
• What does "proof" indicate in the context of alcoholic beverages?
• What is a primary indicator that the HGN test is being improperly administered?
• Which is a describable clue an officer might hear during a DWI interview?
• How is "proof" calculated for alcoholic beverages?
• In a study from Fort Lauderdale, what percentage of drivers contacted by police had BACs between .10 to .20?
• What is methanol often used for?
• How many clues are produced by a subject in the WAT who steps off the line twice and uses arms to balance twice?
• Can prescription drugs affect the performance of the HGN test?
• What is the chemical symbol for beverage alcohol?
• Which of the following describes the performance of the HGN test?
• What are two factors that can lead to high results on a Preliminary Breath Test (PBT)?
• How does alcohol specifically affect HGN?
• What kind of training do officers undergo to administer the HGN test?
• What is evaluated when a subject takes the Preliminary Breath Test (PBT)?
• Which of the following is a false statement about alcohol absorption?
• Why do law enforcement officers need tools for recording field notes during DWI investigations?
• What is the natural process called that produces beverage alcohol?
• What is a common error officers make during HGN testing?
• What should an officer conclude if nystagmus is not observable during the HGN test?
• In which organ of the body does most of the metabolism of alcohol take place?
• Which symptom is associated with impaired vision due to alcohol consumption?
• What is a common admission an officer might hear during a DWI interview?
• During a DWI stop, which of the following observations could be a sign of poor coordination?
• How many total clues can appear in the HGN test across both eyes?
• What does BAC stand for?
• What is Isopropyl commonly used for?
• Which of the following is a common symptom of impairment?
• During Phase Two, what must the officer determine?
• Why is documentation considered important during the HGN test?
• What is the primary purpose of using HGN in DUI testing?
• What odor might an officer detect during a DWI interview that indicates alcohol consumption?
• Can HGN test results be used as evidence in court?
• Why might HGN testing provide variable results among different individuals?
• Which eyes are evaluated during the HGN test?
• What happens during the HGN testing process?
• What measurement unit is primarily used to determine Blood Alcohol Concentration (BAC)?
• How can environmental factors influence HGN test outcomes?
• Why is it vital to establish baseline conditions for the HGN test?
• What is one common sign of alcohol intoxication?
• Which of the following tests is NOT part of the standardized field sobriety tests?
• How is HGN utilized in field sobriety tests?
• Which factor affects the absorption of alcohol in the bloodstream?
• What does it indicate if nystagmus is present before reaching 45 degrees?
• What is the preferred organization method for an officer's testimony in court?
• What is the difference between HGN and other types of nystagmus?
• What could prevent Phase Three from occurring during a DWI investigation?
• In typical DWI enforcement, one DWI violation results in how many arrests?
• When does the preparation for testimony begin?
• What is the primary goal of HGN testing in Arizona?
• What does a strong response to HGN usually indicate?
• During which stage of the Walk and Turn test is the subject required to count their steps aloud?
• What must an officer observe about the subject's head during the HGN test?
• What precautions should officers take regarding personal safety during the HGN test?
• What is the primary purpose of the HGN test in DUI investigations?
• What may happen if the HGN test is conducted without proper precautions?
• Why is it crucial for officers to understand HGN scoring criteria?
• What are "vertical nystagmus" movements?
• When performing divided attention tasks, a subject's ability to manage multiple tasks is crucial for what reason?
• What is the significant decision made during phase two of a DWI stop?
• Which of the following is NOT an alcohol?
• At what angle is the onset of nystagmus evaluated during the HGN test?
• What is a false positive in the context of HGN testing?
• DWI detection is defined as:
• How can distractions influence the outcome of the HGN test?
• The Per Se law makes it unlawful to:
• In the one leg stand test, a subject who sways produces how many clues?
• How many different outcomes can each major decision in a DWI investigation lead to?
• Which of the following aligns with the symptoms of impaired judgment?
• What is a critical component of the DWI investigation process?
• The Countdown Technique requires the subject to do what?
• What action must the subject take when performing the Walk and Turn test?