What is the threshold limit value?
a. The amount of a substance, measured in milligrams per body mass, that kills half of a group of laboratory animals to which the substance is administered during a preestablished time
b. The concentration of a substance, in milligrams per kilogram (mg/kg), that kills a laboratory animal within 48 hours
c. The upper limit of a concentration to which an average healthy person can be repeatedly exposed on an all-day, everyday basis without suffering adverse health effects
d. The concentration of a substance to which workers can be exposed continuously for a period of approximately 15 minutes without suffering irritation, chronic or irreversible tissue damage, or narcosis sufficient to increase the risk of accidental injury, impair self-rescue, or materially reduce work-related efficiency
C
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Nonindwelling catheters are also called external catheters
A) True B) False
The substance produced by the condensation of a glycol and an organic diisocyanate is called
a. Epoxy resins b. Methyl methacrylate c. Polyurethane d. Polyacrylonitrile
Sodoku __________
Fill in the blank(s) with the appropriate word(s).
Urinary ________ is a measure of the degree of acidity or alkalinity of the urine and can provide information about a patient's metabolic status, diet, and medications being taken.
Fill in the blank(s) with the appropriate word(s).