What is the meaning of this sign?
Irritant to skin, eyes, or respiratory tract
Health hazard
Acute toxicity; fatal
Explosive
The Correct Answer is C
A. Irritant to skin, eyes, or respiratory tract: The Globally Harmonized System (GHS) pictogram for an irritant is a diamond containing an exclamation mark (!). This symbol is used for less severe health hazards like skin or eye irritation.
B. Health hazard: While acute toxicity is a health hazard, the specific pictogram for a range of serious, but non-acute, long-term health issues (like carcinogenicity, mutagenicity, or respiratory sensitization) is a diamond containing a human silhouette with a starburst over the chest (often called the "man exploding" symbol).
C.Acute toxicity; fatal: The skull and crossbones symbol is an internationally recognized icon representing poison or danger of death. In the GHS, this specific pictogram is used for substances that are toxic or fatal even after only a short exposure to a small amount.
D. Explosive: The GHS pictogram for an explosive substance is a diamond containing a bomb undergoing an explosion
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Biosafety Level 1: BSL-1 is designated for microbes that pose minimal risk to humans and the environment. These organisms are non-pathogenic and can be safely handled with standard laboratory practices.
B. Biosafety Level 2: BSL-2 is used for organisms that pose moderate risk and may cause human disease, requiring additional precautions such as limited lab access and protective equipment.
C. Biosafety Level 3: BSL-3 applies to microbes that can cause serious or potentially lethal diseases via inhalation, requiring controlled access and specialized safety equipment.
D. Biosafety Level 4: BSL-4 is reserved for dangerous, exotic pathogens such as Ebola virus, which carry high risk of life-threatening disease and require maximum containment facilities.
Correct Answer is B
Explanation
A. Order of complexity: Order of complexity refers to the organized structure of living systems, from molecules to cells to organisms. While organization is important, it does not directly describe the ability to respond to a stimulus.
B. Sensitivity: Sensitivity is the capacity of an organism to detect and respond to changes or stimuli in its environment. This characteristic allows living beings to adapt behaviorally or physiologically, ensuring survival and interaction with their surroundings.
C. Evolution: Evolution involves gradual genetic changes in populations over generations. It explains long-term adaptation but does not account for an immediate response to a stimulus by an individual organism.
D. Homeostasis: Homeostasis is the maintenance of internal stability, such as temperature or pH, despite external changes. While it can involve responses, it specifically refers to regulation rather than reacting to a particular stimulus.
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