Toxic Gases and Industry-Related Toxicants

Question 1

Ingestion of kerosine is MOST likely to cause

a. posterior paralysis
b. severe CNS depression
c. hemolysis and methemoglobinemia
d. severe aspiration pneumonia
e. bone abnormalities and osteoporosis

Answer 1

d. severe aspiration pneumonia

Question 2

Chronic fluoride poisoing in cattle causes

a. diarrhea, pale hair coat, lameness and hoof overgrowth
b. icterus, hemoglobinuria, and photosensitization
c. emaciation, hair loss, and lameness
d. rumen stasis, nephrosis, and constipation
e. lameness, exostoses, and excessive dental wear

Answer 2

e. lameness, exostoses, and excessive dental wear

Question 3

A reddish-brown gas that produces bronchial constriction and pulmonary edema is

a. nitrogen dioxide (NO2)
b. hydrogen sulfide (H2S)
c. nitrous oxide (N2O)
d. hydrogen cyanide (HCN)
e. carbon monoxide (CO)

Answer 3

a. nitrogen dioxide (NO2)

Question 4

The specimen of choice to confirm a diagnosis of chronic fluoride poisoning in a live animal is

a. feed
b. water
c. urine
d. bone
e. GI contents

Answer 4

c. urine

Question 5

Petroleum products of low boiling points, low viscosity, and low surface tension generally have more pneumotoxic potential.

a. True
b. False

Answer 5

a. True

Question 6

Cyanide and hydrogen sulfide both

a. are plant related toxicants
b. react with other metals to form black or dark colored compounds in the GI tract and may stain the tissues
c. cause sudden death mainly due to preventing tissue oxygen utilization
d. are free of irritant effects to mucous membranes
e. can cause tolerance in animlas to their characteristic odors

Answer 6

c. cause sudden death mainly due to preventing tissue oxygen utilization