Explain how lead inhibits heme synthesis
What will be an ideal response?
Answer: Lead passes to the bone marrow where it accumulates in the mitochondria of erythroblasts and inhibits the enzymes involved in heme synthesis. RNA aggregates and mitochondria degenerates, forming basophilic stippling. Some aggregates contain free ionized iron. The enzymes most sensitive to lead are ALA-D and ferrocheletase.
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You are awaiting removal of a patient from a trench in which he is buried in dirt up to his nipple line . Which of the following is the greatest risk for this patient?
A) Compartment syndrome B) Asphyxiation C) Crush syndrome D) Long bone fractures
Which form of radiation can travel long distances through the air and requires lead shields for protection?
a. alpha c. gamma b. beta d. all of the above
The intent of most Workers' Compensation Acts is to establish a system under which a worker no longer has to prove ____________________ on the part of the employer.
Fill in the blank(s) with the appropriate word(s).
When working with decimals, it is necessary to obtain an answer ____________________ decimal place after the desired place
Fill in the blank(s) with correct word