Hazwoper 40 lesson 3 - Study guides, Class notes & Summaries

HAZWOPER 40: Lesson 22 Quiz 100% Pass Current recommendations of the U.S. Public Health Service can be obtained through: The CDC The healthcare professional providing treatment to the exposed employee must be provided all of the following EXCEPT: The name and exposure history of the source individual, if available The rate of chronic HBV infection is greater in: Italy than in England While the probability of source blood being HBsAg positive ranges from 1-to-3 per thousand in the general popu...

Chemicals in combination can produce different biological responses than the responses seen when exposure is to one chemical alone. True False - ANSWER True ________ is the most common route of exposure leading to a toxic dose in the work environment Injection Ingestion Inhalation Eye/Skin contact - ANSWER LD 50 of 25 mg/m3 means that a concentration of 25 mg/m3 of a certain substance indicates: 50 people out of a group of 80 exposed to a concentration 25 mg/m3 of a substance were s...

HAZWOPER 40: Lesson 22 Quiz correctly answered 2023Current recommendations of the U.S. Public Health Service can be obtained through: The CDC The healthcare professional providing treatment to the exposed employee must be provided all of the following EXCEPT: The name and exposure history of the source individual, if available 00:26 01:20 The rate of chronic HBV infection is greater in: Italy than in England While the probability of source blood being HBsAg posi...

HAZWOPER 40: Lesson 22 Quiz| questions and answers with rationale Current recommendations of the U.S. Public Health Service can be obtained through: The CDC The healthcare professional providing treatment to the exposed employee must be provided all of the following EXCEPT: The name and exposure history of the source individual, if available 00:21 01:11 The rate of chronic HBV infection is greater in: Italy than in England While the probability of source blood ...

HAZWOPER 40: Lesson 22 Quiz 100% Solved 2024 Current recommendations of the U.S. Public Health Service can be obtained through: - Answer- The CDC The healthcare professional providing treatment to the exposed employee must be provided all of the following EXCEPT: - Answer- The name and exposure history of the source individual, if available The rate of chronic HBV infection is greater in: - Answer- Italy than in England While the probability of source blood being HBsAg positive ranges fro...

HAZWOPER 40 Lesson 7 Quiz Verified Solutions **Respiratory Protection** 1. What are the two main types of positive-pressure respirators? Pressure-demand and continuous flow 2. Which type of assembly is approved by MSHA and NIOSH to protect against organic vapors, and is tested against only a single challenge substance? Assembly tested against stannic chloride 3. What are the two types of fit tests that can be performed? Qualitative fit test (exposing wearer to irritants or substa...

HAZWOPER 40 Lesson 9 Quiz All Answers Correct **External Communication** 1. When communicating externally, such as by phone or radio, what is the primary goal? To maintain contact with off-site personnel and management, ensuring effective coordination of emergency response efforts and keeping them informed of situation updates. 2. What are some common internal communication devices used to convey information to personnel? Internal communication devices include two-way radios, satel...

HAZWOPER 40 - Lesson 3 - Toxicology **Chemical Interactions** 1. What happens when chemicals are combined? They produce different biological responses than exposure to one chemical alone. **Route of Exposure** 2. What is the most common route of exposure leading to a toxic dose in the work environment? Inhalation **Toxicity** 3. What does an LD 50 of 25 mg/m3 mean? A concentration of 25 mg/m3 of a substance is shown to have been fatal to 50% of a test group of animals. **Fa...