Toxicology test quizzes and answers
graded A+
Which features of a chemical will favor accumulation in biological systems?
-binding to plasma proteins
-Lipophilicity
-both a & c - ANS✅✅Lipophilicity
Exposure to toxins may result from any of the following routes except:
-intravenous administration
-inhalation
-transdermal absorption
-ingestion - ANS✅✅intravenous administration
Toxic effects of methanol include all the following except:
-confusion
-severe metabolic acidosis
-blindness
-death - ANS✅✅
Acute toxic effects of cocaine include all the following except:
-sedation
-seizures
-myocardial infraction
-hypertension - ANS✅✅
Damage caused by a toxic gas is affected by:
-other drugs taken by an individual
-body temperature
-solubility of the gas in the blood
, -partial pressures of gas in the liver - ANS✅✅solubility of the gas in the blood
What is LD50?
-it is the median lethal dose
-the initial dose is 50 mg/Dl
-the lethal dose is 50% of the toxin's concentration
-it is determined using human subjects - ANS✅✅
All the following measures are taken to ensure a good-quality urine specimen for drug testing
except:
-adding blue color to toilet water
-having someone accompany the person providing the specimen to observe the collection process
-wearing excess clothing in the collection room
-inactivation of the hot water faucet - ANS✅✅wearing excess clothing in the collection room
T/F : the hale-life is defined as the time taken for the plasma concentration to increase by half and is
determined by metabolism and excretion - ANS✅✅False
The most serious effect of methanol ingestion is :
-hallucination
-blindness
-psychosis
-liver damage - ANS✅✅blindness
Which statement is true regarding the volume distribution (Vd) of a drug - ANS✅✅Vd is the
theoretical volume in liters into which the drug distributes
carbon monoxide exerts its toxic effects via its interaction with which of the following ?
-DNA polymerase
-actin
-kinesin
-hemoglobin - ANS✅✅hemoglobin
graded A+
Which features of a chemical will favor accumulation in biological systems?
-binding to plasma proteins
-Lipophilicity
-both a & c - ANS✅✅Lipophilicity
Exposure to toxins may result from any of the following routes except:
-intravenous administration
-inhalation
-transdermal absorption
-ingestion - ANS✅✅intravenous administration
Toxic effects of methanol include all the following except:
-confusion
-severe metabolic acidosis
-blindness
-death - ANS✅✅
Acute toxic effects of cocaine include all the following except:
-sedation
-seizures
-myocardial infraction
-hypertension - ANS✅✅
Damage caused by a toxic gas is affected by:
-other drugs taken by an individual
-body temperature
-solubility of the gas in the blood
, -partial pressures of gas in the liver - ANS✅✅solubility of the gas in the blood
What is LD50?
-it is the median lethal dose
-the initial dose is 50 mg/Dl
-the lethal dose is 50% of the toxin's concentration
-it is determined using human subjects - ANS✅✅
All the following measures are taken to ensure a good-quality urine specimen for drug testing
except:
-adding blue color to toilet water
-having someone accompany the person providing the specimen to observe the collection process
-wearing excess clothing in the collection room
-inactivation of the hot water faucet - ANS✅✅wearing excess clothing in the collection room
T/F : the hale-life is defined as the time taken for the plasma concentration to increase by half and is
determined by metabolism and excretion - ANS✅✅False
The most serious effect of methanol ingestion is :
-hallucination
-blindness
-psychosis
-liver damage - ANS✅✅blindness
Which statement is true regarding the volume distribution (Vd) of a drug - ANS✅✅Vd is the
theoretical volume in liters into which the drug distributes
carbon monoxide exerts its toxic effects via its interaction with which of the following ?
-DNA polymerase
-actin
-kinesin
-hemoglobin - ANS✅✅hemoglobin
