Final Flashcards
(97 cards)
Which of the following is the characteristic sequale upon dermal contact with a strong base such as lye (sodium hydroxide)?
progressive, penetrative damage
Which of the following is the characteristic sequale upon dermal contact with a strong base such as lye (sodium hydroxide)?
progressive, penetrative damage
The intensity of a systemic toxic effect is directly proportional which one of the following?
Absorbed dose
The protective function of the skin against chemical absorption is due to the presence of which of the following?
Oily secretion from the sebaceous glands
Delayed-onset pulmonary toxicity is characteristic of which of the following chemical exposures?
Inhalation of an irritant gas with low water solubility
Which of the following Therapeutic Indices represents a chemical that is most likely to cause serious toxicity upon even slight overdose?
2
Which of the following categories of chemicals will NOT cause toxic effects at any dose?
all the above
Methemoglobinemia is characterized by which of the following?
A blood drop on filter paper stains chocolate-brown
The gas that has poor warning properties is which of the following
CO
Which of the following chemicals does NOT cause methemoglobinemia?
lead acetate
Which of the following is NOT correct for carbon monoxide?
It has greatest binding affinity for adult Hb
Which of the following are sources of carbon monoxide?
Cigarette smoke
Automobile exhaust
gasoline generators
Infants are at high risk for methemoglobinemia due to developmental deficiency of which of the following?
Glucose-6-phosphate dehydrogenase
In general, the ability of any chemical to produce systemic (not local) toxic effects is primarily dependent upon which of the following factors?
Concentration of free chemical in plasma
Carbon monoxide inhalation
A. will reduce the amount of Hb available to transport oxygen B. can be mis-diagnosed as “Flu”
C. can cause fetal damage
Irritant gases that are likely to cause “upper” respiratory tract damage
will have high water solubility
B. will increase respiratory tract secretions C. will cause bronchoconstriction
Particulates that can cause COPD have a diameter of
Most of the particulates that get deposited in the pulmonary region of the respiratory tract are removed by which of the following?
muco-ciliary system
Which of the following is the index of outdoor air quality?
ozone
acid rain
sulfuroxides
Which of the following is true for the Photochemical Reaction?
A) Ozone and Nitrogen oxides are the main products
B) Infra-red radiation is essential for the reaction to occur
C) Hydrocarbons and nitrogen oxides are the main chemical reactants
Carbon monoxide has the greatest binding affinity for which of the following forms of hemoglobin?
fetal hub
Well water in the midwest may cause hypoxia ,especially in an infant, because of the presence of high concentrations of
nitrates/nitrites
The risk for angina is increased upon exposure to which of the following chemicals?
CO
